Brentwood Middle School Chiller Specifications

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					                           TABLE OF CONTENTS

                        DIVISION 15 - MECHANICAL


         SECTION                                   NUMBER

         Front End
         Basic Mechanical Requirements             15010
         Basic Mechanical Materials and Methods    15050
         Basic Piping Materials and Methods        15055
         Valves                                    15100
         Piping Accessories                        15120
         Pipe Supports and Anchors                 15140
         Motors and Starters                       15170
         Mechanical Identification                 15190
         Vibration and Seismic Control             15240
         Mechanical Insulation                     15250
         Hydronic Piping                           15510
         Pumps                                     15540
         Water Chillers                            15680
         Cooling Towers                            15710
         Automatic Temperature Controls            15970
         Test-Adjust-Balance                       15990




BRENTWOOD MIDDLE SCHOOL                                January 25, 2012
                                    TOC - 1
            SECTION 15010 - BASIC MECHANICAL REQUIREMENTS

PART 1      GENERAL

1.01   RELATION TO DIVISION 1

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply. Engineer shall decide which is most stringent.

1.02   COORDINATION WITHIN DIVISION 15

       A.   Contract Documents:
            1.     General: The Contract Documents are diagrammatic, showing certain
                   physical relationships which must be established within the mechanical work
                   and its interface with other work. Such establishment is the exclusive
                   responsibility of the Contractor.
            2.     Supplemental Instructions: The exact location for some items in this
                   Specification may not be shown on the Drawings. The location of such items
                   shall be established by the Engineer during the progress of the work.
            3.     Discrepancies:
                   a.      Examine Drawings and Specifications.
                   b.      Report a n y d i s c r e p a n c i e s t o t h e E n g i n e e r a n d o b t a i n
                           w r i t t e n instructions before proceeding.
                   c.      Should there be a conflict within or between the Specifications or
                           Drawings, the more stringent or higher quality requirements shall
                           apply.
                   d.      Items called for in either specifications or drawings shall be required
                           as if called for in both.

       B.   Coordination Drawings: For places where clearances are limited, and for places
            where several elements of mechanical work (or combinations of mechanical and
            other work) must be located with precision in order to fit into available space, prepare
            Coordination Drawings (Shop Drawings) at a suitable scale, showing the required
            dimensions, and submit this drawing for approval.

       C.   Existing Conditions:
            1.     Inspect existing conditions prior to bidding.
            2.     Provide proper coordination of mechanical work with existing work.

       D.   Utility Connections:
            1.      Coordinate the connection of mechanical system with utilities and services.
            2.      Comply with regulations of utility suppliers.

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                                             15010-1
                3.      The Contract Documents indicate the available information on existing
                        utilities and services, and on new services (if any) to be provided to the
                        project by utility companies and agencies.
                        a.       Notify Engineer immediately if discrepancies are found.
                4.      Coordinate mechanical utility interruptions with the Owner and the Utility
                        Company.
                        a.       Plan work so that duration of the interruption is kept to a minimum.

1.03   MECHANICAL AND ELECTRICAL COORDINATION

       A.       Responsibility: Unless otherwise indicated, all motors and controls for Division 15
                equipment shall be furnished, set in place and wired in accordance with the following
                schedule:
                                                       Set In         Power          Control
                               Furnished               Place          Wiring         Wiring
                               Under                   Under          Under          Under
ITEM                           Division                Division       Division       Division

Equipment Motors                       15              15            16              15

Starters/Contractors:
        Separate                       15              15            16              15

       Factory Mounted                 15              15            16              15

       In Motor Control Centers        16              16            16              15

Disconnect Switches                    16              16            16

Thermal Overload Switches              16              16            16

Manual Operating Switches              16              16            16

Control Relays - Separate              15              15            16              15

Control Relays -
in Packaged Equipment                  15              15            16              15

Control Transformers -
Separate                               16              15            16              15

Control Transformers -
in Packaged Equipment                  15              15            16              15

Time Switches                          15              15            16              15

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Thermostats - Separate               15              15             16              15

Thermostat and Controls:
Integral with Equipment              15              15             16              15

Equipment in Temperature
Control Panels                       15              15             16              15

Valves, Dampers                      15              15

Valve Motors, Damper
Motors, Solenoid, Valves, etc.       15              15             16              15

EP Switches, P.E. Switches, etc.     15              15             16              15

Control Circuit Outlets              16              16             16

       B.     Control Wiring:
              1.     Consists of wiring in pilot circuits of contractors, starters, relays etc., and
                     wiring for valve and damper operators that is not a part of Division 15.
              2.     For single phase devices where power current passes through controller,
                     wiring between controller and device shall be considered control wiring;
                     wiring to device from electric panel shall be considered power wiring.

1.04   COORDINATION OF MECHANICAL OPENINGS

       A.     General:
              1.    Coordinate all mechanical openings with the appropriate structural
                    contractor.
              2.    Transmit all information relating to mechanical openings in a timely manner
                    to avoid construction delays.

       B.     Openings in Precast Concrete:
              1.    All circular openings for mechanical conduit, piping and systems thru precast
                    concrete elements shall be core drilled in the field after the element has been
                    set in place.
              2.    All rectangular openings thru precast concrete elements for mechanical
                    ductwork, piping, conduit and systems shall be saw cut in the field after the
                    element has been set in place with reinforcing as required by the structural
                    engineer.

       C.     Openings in Poured-In-Place Concrete:
              1.    All circular openings for mechanical conduit, piping and systems thru
                    poured-in-place concrete elements shall be core drilled or sleeved.

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                                           15010-3
            2.     All rectangular openings for mechanical conduit, piping and systems thru
                   poured-in-place concrete elements shall be saw cut or blocked out with
                   reinforcing as required by the structural engineer.

1.05   COORDINATION WITH OTHER DIVISIONS

       A.   General:
            1.    Coordinate the mechanical work to the progress of the work of other trades.
            2.    Complete the entire installation as soon as the condition of the building will
                  permit.

       B.   Cutting and Patching: Refer to Section 15050.

       C.   Chases, Inserts and Openings:
            1.     Provide measurements, drawings, and layouts so that openings, inserts and
                   chases in new construction can be built in as construction progresses.
            2.     Check sizes and locations of openings provided.


            3.     Any cutting and patching made necessary by failure to provide
                   measurements, drawings and layouts at the proper time shall be done at no
                   additional cost to the Owner.

       D.   Support Dimensions: Provide dimensions and drawings so that concrete bases and
            other equipment supports to be provided under other Sections of the Specifications
            can be built at the proper time.

1.06   COORDINATION WITH EXISTING OCCUPIED AREAS

       A.   Minimize disruptions to operation of mechanical systems in occupied areas.

       B.   Coordinate disruptions with the Owner.

       C.   Provide temporary connections to prevent long disruptions.

1.07   REGULATORY REQUIREMENTS

       A.   Codes: Comply with the following:
            1.    International Building Code - 2009 Edition.
            2.    International Mechanical Code - 2009 Edition.
            3.    International Plumbing Code - 2009 Edition.
            4.    National Electric Code - Current Edition.
            5.    Local Modifications to above Codes.
            6.    Local Modifications to above Codes.
            7.    Applicable NFPA Pamphlets.

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                                         15010-4
       B.   Other Regulations: Comply with the following:
            1.     Requirements of Utilities serving the project.
            2.     Requirements of Fire Departments serving the project.
            3.     Regulations of the Health Department having jurisdiction.
            4.     ASHRAE Energy Conservation Standard 90.
            5.     Occupational Safety and Health Administration (OSHA).

       C.   Additional Regulations: Follow additional regulations which appear in individual
            Sections of these Specifications.

       D.   Contradictions: Where Codes are contradictory, follow the most stringent, unless
            otherwise indicated in Plans or Specifications. Engineer shall determine which is
            most stringent.

       E.   Contract Documents Not in Compliance:
            1.     Where the Drawings and Specifications do not comply with the minimum
                   requirements of the Codes, either notify the Engineer in writing during the
                   Bidding Period of the revisions required to meet Code requirements, or
                   provide an installation which complies with the Code requirements.
            2.     Follow Drawings and Specifications where they are superior to Code
                   requirements.

       F.   Permits:
            1.     Obtain and pay for all permits required by authorities and agencies having
                   jurisdiction for the work of this Division.
            2.     Post permits as required.

       H.   Inspections and Tests:
            1.      Arrange for all required inspections and tests.
            2.      Pay all charges.
            3.      Notify Engineer 48 hours before tests.
            4.      Submit six copies for Owners records of permits, licenses, inspection reports
                    and test reports.

1.08   RECORD DRAWINGS

       A.   General Recording Procedure:
            1.    Maintain a white-print set of Mechanical Contract Drawings in clean,
                  undamaged condition, for mark-up of installations which vary substantially
                  from the Contract Drawings.
            2.    Record changes drawn to scale and fully dimensioned, in the following:
                  a.     Work concealed behind or within other work, in an inaccessible
                         arrangement.
                   b.     Mains and branches of piping systems:

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                                         15010-5
                           (1)    with valves and control devices located and numbered.
                           (2)    with concealed unions located.
                           (3)    with items requiring maintenance located traps, strainers,
                                  expansion compensators, tanks, etc.
                   c.      Underground piping and ducts, both exterior and interior.
                   d.      Ductwork layouts, including locations of coils, dampers, filters, boxes
                           and similar units.
                   e.      Concealed control system devices and sensors.
       B.   Corrected Drawings:
            1.     Transmit corrected drawings in AutoCAD version 2012 format as a submittal
                   to the Engineer for Owner's use and record.

1.09   OPERATING AND MAINTENANCE DATA

       A.   Submission:
            1.    Submit three typed and bound copies of Operating and Maintenance Manuals
                  prior to scheduling systems demonstration for the Owner.
            2.    Bind each Maintenance Manual in one or more vinyl covered, 3-ring binders,
                  with pockets for folded drawings.
                  a.      Mark the back spine and outside front cover of each binder with
                          system identification and volume number.

       B.   Requirement Contents:
            1.     Manuals shall have index with tab dividers for each major equipment section
                   to facilitate locating information on specific piece of equipment.
            2.     Identify data within each section with drawing code numbers as they appear
                   on Drawings and Specifications. Include as a minimum the following data:
                   a.       Alphabetical list of system components, with the name, address and
                            24 hour telephone number of the company responsible for servicing
                            each item during the first year of operation.
                   b.       Operating instructions for complete system including:
                            (1)     Emergency procedures for fire and failure of major
                                    equipment.
                            (2)     Major start, operation and shut-down procedures.
                   c.       Maintenance Instructions for each piece of equipment including:
                            (1)     Equipment lists.
                            (2)     Proper lubricants and lubricating instructions for each piece of
                                    equipment.
                            (3)     Necessary cleaning, replacement and/or adjustment schedule.
                            (4)     Product Data.
                            (5)     Installation instructions.
                            (6)     Parts lists.
                            (7)     Complete wiring diagrams.
                   d.       Temperature control diagrams for package equipment (as-built).
                   e.       Marked or changed prints locating concealed parts and variations

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                                          15010-6
                           from the original system design.
                   f.      Balancing Report.

1.10   WARRANTIES

       A.   The warranty period shall begin in accordance with General Conditions.

            1.     During this period, provide labor and materials as required to repair or
                   replace defects at no additional cost to the Owner.
            2.     Provide certificates for such items of equipment which have warranties in
                   excess of one year.

PART 2      PRODUCTS

2.01   QUALITY CONTROL

       A.   Qualification of Products: When products are specified by manufacturer and model
            number, equivalent products by other manufacturers listed may be provided.

       B.   Products by manufacturers not listed in this Specification may be submitted to
            Engineer during Bidding Period in accordance with Instructions to Bidders.

       C.   Coordination of Options and Substitutions: Where Contract Documents permit
            selection from several options, or where substitutions are authorized, coordinate
            clearance and other interface requirements with mechanical and other work.
            1.      Provide necessary additional items so that selected or substituted item
                    operates properly and properly fits in the available space.

       D.   Concrete for Mechanical Work: Except as otherwise indicated, comply with
            applicable provisions of Division 3 Sections for whatever concrete work is necessary
            or shown specifically for installation of the mechanical work.

2.02   GENERAL SUBMITTAL REQUIREMENTS

       A.   Coordination and Sequencing:
            1.    Coordinate submittals so that work will not be delayed by submittals.
            2.    No extension of time will be allowed because of failure to properly
                  coordinate and sequence submittals.
            3.    Do not submit product data, or allow its use on the project, until compliance
                  with requirements of Contract Documents has been confirmed by Contractor.
            4.    Submittal is for information and record, unless otherwise indicated.

       B.   Preparation of Submittals:
            1.     Provide permanent marking on each submittal to identify specification,
                   section number, use, project, date, Contractor, Subcontractor, submittal name

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                                         15010-7
                   and similar information to distinguish it from other submittals.
            2.     Indicate any portions of work which deviate from the Contract Documents.
                   a.      Explain the reasons for the deviations.
                   b.      Show how such deviations coordinate with interfacing portions of
                           other work.
            3.     Show Contractor's executed review and approval marking.
            4.     Provide space for Engineer's "Action" marking.
            5.     Submittals which are received from sources other than through Contractor's
                   office will be returned "Without Action".

       C.   Quantities: Except as otherwise indicated, submit six copies.
            1.     Multiple System Items: Where a required submittal relates to an operational
                   item of equipment used in more than one system, increase the number of final
                   copies as necessary to complete the Maintenance Manuals for each system.
            2.     Preliminary Submittal: Provide a preliminary, two-copy submittal for
                   automatic temperature controls and when product data is required (or desired
                   by Contractor) for selection of options by Engineer.
            3.     General Distribution:
                   a.      Provide additional distribution of submittals (not included in
                           foregoing copy submittal requirements) to Subcontractors, Suppliers,
                           Fabricators, Installers, Governing Authorities and others as necessary
                           for proper performance of the work.
                   b.      Include such additional copies in transmittal to Engineer where
                           required to receive "Action" marking before final distribution.
                           (1)     Show such distributions on transmittal forms.

       D.   Response to Submittals: Where standard product data have been submitted, it is
            recognized:
            1.     That the Submitter has determined that the products fulfill the specified
                   requirements.
            2.     That the submittal is for the Engineer's information only, but will be returned
                   with appropriate action where observed to be not in compliance with the
                   requirements.

2.03   SPECIFIC CATEGORY SUBMITTAL REQUIREMENTS

       A.   Manufacturer's Data:
            1.    Where pre-printed data covers more than one distinct product, size, type,
                  material, trim, accessory group or other variation, mark submitted copy with
                  black pen to indicate which of the variations is to be provided.
            2.    Delete or mark-out significant portions of pre-printed data which are not
                  applicable.
            3.    Where operating ranges are shown, mark data to show portion of range
                  required for project application.
            4.    For each product, include the following:

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                                         15010-8
                   a.      Sizes.
                   b.      Weights.
                   c.      Speeds.
                   d.      Capacities.
                   e.      Piping connection sizes and locations.
                   f.      Statements of compliance with the required standards and regulations.
                   g.      Performance data.
                   h.      Manufacturer's specifications and installation instructions.

       B.   Shop Drawings:
            1.    Prepare Mechanical Shop Drawings, except diagrams, to accurate scale.
                  a.     Show clearance dimensions at critical locations.
                  b.     Show dimensions of spaces required for operation and maintenance.
                  c.     Show interfaces with other work, including structural support.

       C.   Test Reports:
            1.     Submit test reports which have been signed and dated by the firm performing
                   the test.
            2.     Prepare test reports in the manner specified in the standard or regulation
                   governing the test procedure (if any) as indicated.

2.04   COMPATIBILITY

       A.   General: Provide products which are compatible with other products of the
            mechanical work, and with other work requiring interface with the mechanical work.

       B.   Altitude Ratings: Except where noted otherwise, all ratings and capacities stated in
            the Contract Documents are at the altitude of the project not sea level.

       C.   Fuel Characteristics:
            1.     Review fuel characteristics with the Fuel Supplier designated by the Owner.
            2.     Determine burner or combustion equipment provisions needed for optimum
                   performance.
                   a.     Provide equipment accordingly.

       D.   Power Characteristics: Where power characteristics are not stated in Division 15
            Sections, refer to the Sections of Division 16 and the Electrical Drawings for the
            power characteristics of each power driven item of mechanical equipment.

2.05   SAFETY PROVISIONS

       A.   Equipment Nameplates: Provide power-operated mechanical equipment with a
            permanent nameplate attached by the manufacturer, indicating:
            1.    The manufacturer.
            2.    Product name.

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                                         15010-9
            3.     Model number.
            4.     Serial number.
            5.     Speed.
            6.     Capacity.
            7.     Power characteristics.
            8.     Labels of testing, listing, or inspecting agencies.
            9.     Other similar data.

       B.   Guards:
            1.    Unless equivalent guards are provided integral with the equipment, enclose
                  each belt drive (including sheaves) on both sides in a galvanized, one inch,
                  mesh screen of No. 18 gauge steel wire or expanded metal, fastened to an
                  approved, structural steel frame, securely fastened to the equipment or floor.
            2.    Provide tachometer holes at shaft centers.
            3.    Unless equivalent guards are provided integral with the equipment, install a
                  solid guard of No. 20 gauge galvanized steel over the coupling of each item
                  of direct-driven equipment.
                  a.      Sides are not required on these guards except to ensure rigidity.

PART 3      EXECUTION

3.01   COORDINATION OF MECHANICAL INSTALLATION.

       A.   Inspection and Preparation:
            1.      Examine the work interfacing with mechanical work, and the conditions
                    under which the work will be performed and notify the Engineer of
                    conditions detrimental to the proper completion of the work.
            2.      Do not proceed with the work until unsatisfactory conditions have been
                    corrected.

       B.   Layout:
            1.     Layout the mechanical work in conformity with the Contract Drawings,
                   Coordination Drawings and other Shop Drawings, product data and similar
                   requirements so that the entire mechanical plant will perform as an integrated
                   system, properly interfaced with other work, recognizing that portions of the
                   work are shown only in diagrammatic form.
            2.     Where coordination requirements conflict with individual system
                   requirements, comply with the or Engineer's decision on resolution of the
                   conflict.
            3.     Take necessary field measurements to determine space and connection
                   requirements.
            4.     Provide sizes and shapes of equipment so the final installation conforms to
                   the intent of the Contract Documents.

       C.   Integrate mechanical work in ceiling spaces with suspension system, light fixtures

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                                         15010-10
            and other work so that required performances of each will be achieved.

3.02   PRODUCT INSTALLATION

       A.   Manufacturer's Instructions:
            1.    Except where more stringent requirements are indicated, comply with the
                  product manufacturer's instructions and recommendations.
            2.    Consult with manufacturer's technical representatives, who are recognized as
                  technical experts, for specific instructions on special project conditions.
            3.    If a conflict exists, notify the Engineer in writing and obtain his instruction
                  before proceeding with the work in question.

       B.   Movement of Equipment:
            1.   Wherever possible, arrange for the movement and positioning of equipment
                 so that enclosing partitions, walls and roofs will not be delayed or need to be
                 removed.
            2.   Otherwise, advise Contractor of opening requirements to be maintained for
                 the subsequent entry of equipment.

       C.   Heavy Equipment:
            1.    Coordinate the movement of heavy items with shoring and bracing so that the
                  building structure will not be overloaded during the movement and
                  installation.
            2.    Where mechanical products to be installed on the roof are too heavy to be
                  hand-carried, do not transport across the roof deck; position by crane or other
                  device so as to avoid overloading the roof deck.

       D.   Clearances:
            1.     Install piping and ductwork:
                   a.       Straight and true.
                   b.       Aligned with other work.
                   c.       Close to walls and overhead structure (allowing for insulation).
                   d.       Concealed, where possible, in occupied spaces.
                   e.       Out-of-the-way with maximum passageway and headroom remaining
                            in each space.
            2.     Do not obstruct windows, doors or other openings.
            3.     Give the right-of-way to piping systems required to slope for drainage (over
                   other service lines and ductwork).

       E.   Access:
            1.     Provide for removal, without damage to other parts, of:
                   a.     Coils.
                   b.     Tube bundles.
                   c.     Tubes.
                   d.     Shafts.

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                                         15010-11
                   e.      Fan wheels.
                   f.      Drives.
                   g.      Filters.
                   h.      Strainers.
                   i.      Bearings.
                   j.      Other parts requiring periodic replacement or maintenance.
            2.     Connect equipment for ease of disconnecting with minimum of interference
                   with other work.
            3.     Provide unions where required.
            4.     Locate operating and control equipment and devices for easy access.
            5.     Provide all required access panels in inaccessible construction where
                   mechanical equipment is concealed by finishes and similar work.
            6.     Installation of access panels shall be by others.
            7.     Access panels in fire rated assemblies shall also be fire rated in a like manner.

       F.   Protection of Work:
            1.      All pipe ends, valves, ducts and equipment left unconnected shall be capped,
                    plugged or otherwise properly protected to prevent damage or the intrusion of
                    foreign matter.
            2.      Do not allow any fans in the HVAC system to operate before the area served
                    by the fan has been cleaned and vacuumed of all debris and dust which might
                    enter the system.

3.03   ASBESTOS

       A.   The identification and/or abatement of asbestos hazards is not part of this contract.
            1.     If asbestos is encountered, contact Owner for instructions.

3.04   DEMONSTRATION

       A.   Conduct a half day walk-through of the project.
            1.    Demonstrate that each system operates properly.
            2.    Explain the operation of each system to the Owner's Representative.

       B.   Date and time of walk-through will be determined by Owner.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                         15010-12
            SECTION 15055 - BASIC PIPING MATERIALS AND METHODS

PART 1       GENERAL

1.01   RELATED DOCUMENTS

       A.    Drawings and general provisions of the contract, including General Conditions and
             Division 1 Specification Sections, apply to work of this Section.

       B.    Where contradictions occur between this Section and Division 1, the most stringent
             of the two shall apply.

1.02   QUALITY ASSURANCE

       A.    Welder Qualifications: Welders, both on-site and off-site, shall be certified for the
             type of work being performed by one of the following:
             1.      National Certified Pipe Welding Bureau.

       B.    Welder Certificates:
             1.    Submit one copy of certificate to General Contractor.
             2.    Maintain one copy on project site.

PART 2       PRODUCTS

2.01   PIPE AND FITTINGS

       A.    General:
             1.    Provide factory-fabricated pipe, tubing and fittings of the type, materials,
                   grade, class and pressure rating indicated.
             2.    Provide fittings of sizes and types matching pipe, tube, valve or equipment
                   connection.
             3.    Use factory-fabricated fittings for all branches and changes of size and
                   direction, except where noted otherwise.

PART 3       EXECUTION

3.01   PIPE INSTALLATION

       A.    General:
             1.    Install pipe, tube and fittings in accordance with recognized industry
                   practices which will achieve permanently-leakproof piping systems,
                   capable of performing each indicated service without piping failure.
             2.    Install each run with a minimum of joints and couplings, but with adequate
                   and accessible unions for disassembly, maintenance or replacement of
                   valves and equipment.
             3.    Reduce sizes by use of reducing fittings.

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                                           15055-1
            4.     Install piping without springing or forcing.
            5.     Provide sufficient swing joints, anchors, expansion loops and devices
                   necessary to permit free expansion and contraction without causing undue
                   stresses.
            6.     Support piping independently at equipment so its weight will not be
                   supported by the equipment.

       B.   Location:
            1.     Locate piping runs, except as otherwise indicated, vertically and
                   horizontally (pitched to drain).
                   a.      Avoid diagonal runs wherever possible.
                   b.      Orient horizontal runs parallel with walls and column lines.
            2.     Hold piping close to walls, overhead construction, columns and other
                   structural and permanent-enclosure elements of the building.
                   a.      Limit clearance to 0.5" where furring is shown for enclosure or
                           concealment of piping, but allow for insulation thickness, if any.
                   b.      Where possible, locate insulated piping for 1.0" clearance outside
                           insulation.
            3.     Wherever possible in finished and occupied spaces, conceal piping from
                   view by locating in column enclosures, in hollow wall construction or
                   above suspended ceilings.
                   a.      Do not encase horizontal runs in solid partitions, except as
                           otherwise indicated.

       C.   Electrical Equipment Spaces: Do not run piping through transformer vaults and
            other electrical or electronic equipment spaces and enclosures.

       D.   Dielectric Unions: Install dielectric unions to prevent galvanic action between
            ferrous and non-ferrous piping. Gaskets shall be suitable for intended service.

3.02   WELDING

       A.   Welding:
            1.    Conform to Code for Pressure Piping ANSI B31.9 Building Services
                  Piping.
            2.    Machine cut and bevel piping ends for v-type joints or use cutting torch and
                  grind smooth the burn area plus land area.
            3.    Make changes in direction and intersections of welded lines with welded
                  fittings.
                  a.       Mitering of pipe to form tees not permitted.
            4.    Use recommended bevels and spacing between ends of pipe to assure full
                  penetration complete to inside diameter of pipe.



       B.   Welded Joints:

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                                         15055-2
            1.     Will be inspected visually.
            2.     Any weld judged defective from a visual inspection, shall be ordered tested
                   at the expense of the Contractor or chipped out for full depth and re-welded.

3.03   CLEANING, FLUSHING, INSPECTING

       A.   Clean exterior surfaces of installed piping systems of superfluous materials, and
            prepare for application of specified coatings or insulation, if any.

       B.   Flush out piping systems with clean water before proceeding with required tests.

3.04   PIPING TESTS

       A.   Provide temporary equipment for testing, including pump and gauges.

       B.   Test piping system before insulation is installed wherever feasible and remove
            control devices before testing if necessary.

       C.   Test each natural section of each piping system independently, but do not use
            piping system valves to isolate sections where test pressure exceeds valve pressure
            rating.

       D.    Fill each section of water, drain or vent piping with water and pressurize for two
            hours at 150% of operating pressure, but not less than 50 psig for pressure piping
            and ten feet for drain and vent piping.

       E.   Test fails if leakage is observed or if pressure drop exceeds 5% of test pressure.

       F.   Repair piping systems sections which fail by disassembly and re-installations,
            using new materials to the extent required to overcome leakage.
            1.     Do not use chemicals, stop-leak compounds, mastics or other temporary
                   repair methods.

       G.    After testing and repair work have been completed, drain test water from piping
            systems.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                          15055-3
                              SECTION 15100 - VALVES

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SUBMITTALS

       A.   Manufacturer's Data: Submit manufacturer's product data including:
            1.    Dimensions.
            2.    Sizes.
            3.    End Connections.
            4.    Weights.
            5.    Installation instructions.
            6.    Instructions on repacking and repairing valves.

       B.   Clearly mark each valve submittal for it's intended usage such as "Balancing Valve
            in Pipe 4" and Larger".

PART 2      PRODUCTS

2.01   VALVE TYPES AND SIZES

       A.   Where type or body material is not indicated, provide valve with pressure class
            selected from MSS or ANSI standards, based on the maximum pressure and
            temperature in the piping system.

       B.   Except as otherwise indicated, provide valve of same size as connecting pipe size.

       C.   Ball valves or butterfly valves may be used in water lines in lieu of gate valves
            when pressure and temperature ratings are adequate.

2.02   BALL VALVES

       A.   Services:
            1.     Domestic Water.
            2.     Chilled Water.
            3.     Condenser Water.

       B.   Manufacturers:

BRENTWOOD MIDDLE SCHOOL
                                         15100-1
            1.     Nibco.
            2.     Apollo.
            3.     Grinnell.
            4.     Milwaukee.
            5.     Shortline.

       C.   Valves 2 1/2" and Smaller.
            1.     Models:
                   a.      Nibco T585-70 (threaded ends).
                   b.      Nibco S585-70 (soldered ends).
            2.     Descriptions: Rated 150 psi SWP non-shock WOG and have 2-pc. cast
                   bronze bodies, TFE seats, anti-blowout stems and chrome-plated
                   brass/bronze ball. Valve ends shall have full depth ANSI threads or
                   extended solder connections and be manufactured to comply with
                   MSS-SP110.

2.03   BUTTERFLY VALVES

       A.   Services:
            1.     Chilled Water.
            2.     Condenser Water.

       B.   Manufacturers:
            1.    Nibco.
            2.    Crane.
            3.    Grinnell.
            4.    Keystone.
            5.    Milwaukee.
            6.    Stockham.

       C.   Valves 3" and Larger:
            1.     Model: Nibco LD 2000.
            2.     Description: Lug-style manufactured in accordance with MSS-SP67 rated
                   at least 200 psi non-shock cold water working pressure. Body shall have
                   2" extended neck for insulating and shall be cast iron or ductile iron. Valve
                   shall have aluminum bronze alloy disc with EPDM rubber seat and seals
                   rated for 225ΕF. Stem shall be 400 series stainless steel and shall not have
                   exposed stem to disc fasteners. Sizes 2 1/2" - 6" shall be lever operated
                   with 10-position throttling plate; sizes 8" and larger shall have
                   weatherproof gear operators. Lug-style valve shall be capable for use as an
                   isolation valve and recommended by manufacturer for dead-end service at
                   full pressure without the need for downstream flanges.

2.04   TRIPLE DUTY VALVES

       A.   Services:

BRENTWOOD MIDDLE SCHOOL
                                         15100-2
            1.     Condenser Water.

       B.   Manufacturers:
            1.    B&G.
            2.    Armstrong.
            3.    Keckley.

       C.    The valve shall be of heavy-duty cast-iron construction with standard 125 psig
            ANSI flanged connections and rated for a maximum working pressure of 175 psig
            at 250° F. The valve shall be fitted with a replaceable bronze disc with EPDM seat
            insert, brass or stainless steel stern and chatter-prevention spring. The valve
            design shall permit repacking under full system pressure. Each valve shall be
            equipped with brass readout valves (with integral check valve) for taking
            differential pressure readings across the orifice to accurately balance the system to
            specified design conditions and be available in flanged, groove-locked or threaded
            configurations.

2.05   SUCTION DIFFUSER

       A.   Services:
            1.     Condenser Water.

       B.   Manufacturers:
            1.    Condenser Water.

       C.   Provide at each pump a Suction Diffuser of size and type noted on drawings.
            Units shall consist of angle type body with straightening vanes and combination
            Diffuser-Strainer Orifice Cylinder with 3/16” diameter openings for pump
            protection. The orifice cylinder shall be equipped with a disposable fine mesh
            strainer which shall be removed after system start-up. Orifice cylinder shall be
            designed to withstand pressure differential equal to pump shut-off head and shall
            have a free area equal to five times the cross sectional area of pump suction
            opening. Straightening vanes shall extend the full length of the orifice cylinder
            and shall be carbon or stainless steel material and replaceable. Unit shall be
            provided with adjustable support foot (supplied by others) to carry weight of
            suction piping and will be available in flanges, groove-locked or threaded
            configurations.

PART 3      EXECUTION

3.01   GENERAL

       A.   Comply with the following requirements:
            1.    Install valves with stems pointing up, and as close to vertical as possible.
            2.    Install valves at each piece of equipment, fixture or appliance so that the
                  supply and return services can be shut off to remove the item without

BRENTWOOD MIDDLE SCHOOL
                                          15100-3
              disturbing the piping systems.
         3.   Install valves where required for proper operation of piping and equipment,
              including valves in branch lines to isolate sections of piping where branch
              flow is more than 10% of the total flow.
         4.   Provide drain valves at all low points of piping.
         5.   Shut-off valves shall be butterfly valves or ball valves.
         6.   Balancing valves shall be 3-duty.
         7.   Install all control valves, test wells, sensor wells and the like provided under
              Section 15970.

                              END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                     15100-4
                      SECTION 15120 - PIPING ACCESSORIES

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SUBMITTALS

       A.   Manufacturer's Data - Piping Accessories: Submit manufacturer's data on the
            following piping accessories:
            1.     Sealing compound for sleeves.
            2.     Fire-stopping material.
            3.     Expansion compensators.
            4.     Flexible pipe connections.
            5.     Guides.

PART 2      PRODUCTS

2.01   MANUFACTURED PRODUCTS

       A.   Escutcheon Plates
            1.     Type: Split ring.
            2.     Construction: Brass.
            3.     Finish:
                   a.      At Painted Surfaces: Prime coat.
                   b.      At Other Surfaces: Nickel or Chrome plate.
            4.     For Floor Sleeves: Where sleeves extend above floor surface, provide
                   depth to cover sleeve.

       B.   Expansion Compensators, Two Inch and Smaller
            1.     Manufacturers - Design Basis: Flexonics.
            2.     Other Acceptable Manufacturers:
                   a.      Adsco.
                   b.      Keflex.
                   c.      Metraflex.
            3.     Stroke: 1/4" extension, 1-3/4" compression.
            4.     Model: HB-XXX-FFS for copper tube, all bronze.
            5.     Model: H-XXX-MMT for steel pipe with stainless steel bellows, steel
                   shroud and fittings.
       C.   Flexible Pipe Connectors

BRENTWOOD MIDDLE SCHOOL
                                         15120-1
            1.     Manufacturers - Design Basis: Mason.
            2.     Other Acceptable Manufacturers:
                   a.     Metraflex.
                   b.     Flexonics.
            3.     Model: BSS, EM-MN.
            4.     Hose: Type 321 stainless steel.
            5.     Braid: Type 321 stainless steel.
            6.     Movement: 3/4" transverse.
            7.     Design Pressure: 300 psig at 200 degrees F.
            8.     Ends: Threaded, male, carbon steel.

       D.   Pipe Alignment Guides
            1.     Manufacturers - Design Basis: Flexonics.
            2.     Other Acceptable Manufacturers:
                   a.     Adsco.
                   b.     Keflex.
            3.     Model: PG.
            4.     Material:
                   a.     Spider: Steel for steel pipe, bronze for copper tubing.
                   b.     Ring: Steel.
                   c.     Travel: 3".

       E.   Fire-Stopping Material.
            1.     Manufacturer:
                   a.     Design Basis: Dow Corning.
                   b.     Other Acceptable Manufacturers:
                   (1)    3M.
            2.     Model:
                   a.     RTV Foam or RTV Silicone.
                   b.     Fire-stop sealant.

2.02   FABRICATED ACCESSORIES

       A.   Steel-Pipe Sleeves: Fabricate from Schedule 40 steel pipe. Remove burrs.

       B.   PVC Sleeves: Fabricate from Schedule 40 PVC pipe. Remove burrs.

       C.   Iron-Pipe Sleeves: Fabricate from service weight cast-iron pipe. Remove burrs.

       D.   Sheet-Metal Pipe Sleeves: Fabricate from galvanized sheet-metal, closed with
            lock-seam joints.
            1.     For following pipe sizes, provide gauge indicated:
                   a.      Three Inch Pipe and Smaller: 20 gauge.
                   b.      Four Inch to Six Inch Pipe: 16 gauge.
                   c.      Over Six Inch Pipe: 14 gauge.



BRENTWOOD MIDDLE SCHOOL
                                         15120-2
PART 3      EXECUTION

3.01   INSTALLATION

       A.   Pipe Sleeves:
            1.     Install pipe sleeves where piping passes through walls, floors, ceilings,
                   roofs and structural members, except soil pipe penetrations through
                   concrete slab on grade.
            2.     Provide sleeves of adequate size, accurately centered on pipe runs, so that
                   piping and insulation (if any) will have free movement in the sleeve.
            3.     Install length of sleeve equal to thickness of construction penetrated, except
                   extend floor sleeves 0.25" above floor finish and where floor surface drains
                   to a floor drain, extend floor sleeve 0.75" above floor finish.
            4.     Provide temporary support of sleeves during placement of concrete and
                   other work around sleeves.
            5.     Provide temporary closure to prevent concrete and other materials from
                   entering pipe sleeves.
            6.     Except as otherwise indicated, install steel or PVC pipe sleeves.
            7.     At interior partitions and ceilings, install sheet metal sleeves.
            8.     At exterior penetrations below grade, install iron pipe sleeves.

       B.   Caulking:
            1.     Where water seal or sound seal, but not fire seal, is needed, (foundation
                   walls, slab on grade): Fiberglass backing and heavy bead of silicone
                   caulking compound. Thunderline link-seal model LS.
            2.     Where sleeve pierces a fire separation wall or floor: Fire stop material.

       C.   Install escutcheon plates at pipe sleeves where piping is exposed to view in
            occupied spaces of the building, on the exterior, and elsewhere as indicated.

       D.   Compensators:       Install where shown or where required because piping
            arrangement does not provide sufficient flexibility.
            1.     Protect compensators from over-travel and over-stress during remaining
                   installation and testing.

       E.   Flexible Connectors: Install at right angles to displacement.
            1.     Install one end immediately adjacent to isolated equipment and anchor
                   other end.

       F.   Guides: Install where shown and where required in accordance with expansion
            compensators published requirements.

            1.     As a minimum, install one guide within four pipe diameters of
                   compensator, and one guide 14 pipe diameters from first guide.

                                   END OF SECTION

BRENTWOOD MIDDLE SCHOOL
                                          15120-3
                SECTION 15140 - PIPE SUPPORTS AND ANCHORS

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradiction occur between this Section and Division 1, the most stringent of
            the two shall apply.

1.02   STANDARDS

       A.   Comply with MSS Standard Practice SP-69, published by Manufacturer's
            Standardization Society of the Valve and Fitting Industry for type and size.

1.03   SUBMITTALS

       A.   Submit manufacturer's product data on the following:
            1.    Hangers other than clevis type.
            2.    Anchors.

       B.   Submit structural calculations on trapeze type supports.

PART 2      PRODUCTS

2.01   PIPE HANGERS

       A.   General:
            1.    Use adjustable pipe hangers on suspended pipe.
            2.    Chain, wire or perforated strap hangers will not be permitted.
            3.    Isolate hangers coming in contact with bare copper pipe with dielectric
                  hanger liners.
            4.    Provide supports between piping and building structure where necessary to
                  prevent swaying.
            5.    Provide di-electric isolation between bare copper pipe and steel studs in all
                  walls.

       B.   Hanger Rods: Threaded steel.

       C.   Concrete Inserts: Steel case and expander plug for threaded connection with lateral
            adjustment, top slot for reinforcing rods and lugs for attaching to forms or machine
            bolt expansion anchors.
            1.     Size inserts to match size of threaded hanger rods.

BRENTWOOD MIDDLE SCHOOL
                                         15140-1
    D.     Hangers:
           1.    General: Adjustable wrought steel clevis.
           2.    Multiple or Trapeze: Steel channels with welded spacers and hanger rods.
           3.    Hanger Sizes and Spacing:
                 a.     For gas, domestic water and drain piping, conform to the Uniform
                        Plumbing Code for spacing and the following table for hanger rod
                        sizes.
                 b.     For steam and hydronic piping, conform to the following table.

                                                                        MINIMUM
                                                 MAXIMUM                HANGER
    PIPE TYPE             PIPE SIZE              SPACING                ROD SIZE

    Steel Pipe            1/2"                   6'-0"                  3/8"
                          3/4" thru 1-1/4"       8'-0"                  3/8"
                          1-1/2" and 2"          10'-0"                 3/8"
                          2-1/2" thru 3"         12'-0"                 1/2"
                          4"                     14'-0"                 5/8"
                          6”                     17’-0”                 5/8”

    Copper Pipe           1/2" thru 1"            8'-0"                 3/8"
                          1-1/4" thru 2"         10'-0"                 3/8"
                          2-1/2" thru 3"         10'-0"                 1/2"

    Cast Iron Soil 2"                                                   3/8"
    Pipe                  3" to 5"                                      1/2"
                          6"                                            5/8"

    E.     Insulated Pipe Supports:
           1.      Size pipe supports for outside diameter of pipe insulation.

    F.     Wall Supports:
           1.    1/2" through 3": Unistrut type channel and steel clamp.
                 a.      Use Hydrosorb cushions or other di-electric isolation between bare
                         copper pipe and steel studs.
           2.    4" and Over: Welded steel bracket and wrought steel clamp.

    G.     Vertical Supports: Steel riser clamp at each floor for cast iron pipe. Copper riser
           clamp at every other floor for copper pipe.

    H.     Trapeze Design: Provide structural calculations for channel and rod sizes with
           hanger submittal.

    I.     Pipes over five inches and over 120 degrees: Provide cast iron roller supports.


BRENTWOOD MIDDLE SCHOOL
                                           15140-2
       J.   Cast iron pipe shall have at least one hanger per section and one per fitting.

2.02   PIPE ANCHORS

       A.   Manufacturers:
            1.    Design Basis: Flexonics.
            2.    Other Acceptable Manufacturers:
                  a.      Adsco.
                  b.      Keflex.

       B.   Model AC with threaded ends and welded angle brackets for steel pipe.

       C.   Model AC copper tube with solder ends and steel angle brackets brazed to tubing for
            copper tube.

       D.   Anchors may be field fabricated similar to manufactured products specified.

PART 3      EXECUTION

3.01   INSTALLATION OF PIPE SUPPORTS

       A.   Adequately support piping from the building structure with adjustable hangers to
            maintain uniform grading where required and to prevent sagging and pocketing.
            1.     Provide supports between piping and building structure where necessary to
                   prevent swaying.
            2.     Do not support pipe from other pipe.

       B.   Install hangers to provide minimum 1/2 / 1 inch clear space between finished
            covering and adjacent work.
            1.      Place a hanger within one foot of each horizontal elbow.
            2.      Space hangers as called for in 2.02.

       C.   Use hangers which are vertically adjustable 1-l/2 / 1/2 inches minimum after piping is
            erected.

       D.   Use inserts for suspending hangers from reinforced concrete slabs and sides of
            reinforced concrete beams wherever practicable.
            1.      Set inserts in position in advance of concrete work.
            2.      Where concrete slabs form finished ceiling, finish inserts flush with slab
                    surface.

       E.   Provisions for Movement: Install hangers and supports:
            1.     To allow controlled movement of piping systems.
            2.     To permit proper movement between pipe anchors.
            3.     To facilitate the action of expansion joints, expansion loops, bends and

BRENTWOOD MIDDLE SCHOOL
                                          15140-3
                 offsets.
         4.      To isolate force due to weight or expansion from equipment connections.
    F.   In general, attach hangers to upper chord of roof trusses and floor joists, using long
         rods to facilitate pipe movement.

    G.   Anchors:
         1.    Securely anchor piping where indicated or where required for a proper
               installation and to force the pipe expansion in the proper direction.
         2.    Anchors shall be suitable for the location of installation and shall be designed
               to withstand not less than five times the anchor load.
         3.    Anchor vertical pipes by means of clamps welded around pipes and secured
               to wall or floor construction.

                                 END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                       15140-4
                    SECTION 15170 - MOTORS AND STARTERS

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SCOPE-OF-WORK

       A.   Provide all motors for mechanical equipment.

       B.   Provide all starters only for packaged mechanical equipment.

1.03   SUBMITTALS

       A.   Submit manufacturer's product data.
            1.    Motors: Identify by unit served. Include:
                  a.      Frame.
                  b.      Insulation class.
                  c.      Efficiency.
                  d.      Power factor.
                  e.      Index number.
                  f.      Speed.
            2.    Starters: Identify by motor served. Include:
                  a.      Enclosure.
                  b.      Accessories, switches, transformers, etc.
                  c.      Wiring diagram.

PART 2      PRODUCTS

2.01   MOTORS

       A.   Manufacturers:
            1.    Design Basis: Century.
            2.    Other Acceptable Manufacturers:
                  a.      General Electric.
                  b.      Westinghouse.
                  c.      U. S. Motor.
                  d.      Allis Chalmers.
                  e.      Louis Allis.

BRENTWOOD MIDDLE SCHOOL
                                         15170-1
         3.      Factory installed motors may be by equipment manufacturer's standard
                 supplier.

    B.   Bearings: Ball bearings, grease lubricated with grease fittings or factory packed and
         sealed.

    C.   Enclosure: As required by location.

    D.   Service Factor: 1.15.

    E.   Full-Load Operation: At 40 degrees C and altitude of project.

    F.   Insulation:
         1.      Constant Speed: Class B.
         2.      Variable Frequency Controlled: Class F.

    G.   Efficiency Ratings:
         1.      All motors one horsepower and larger shall be ultra-high efficiency motors, in
                 accordance with IEEE Test Method 112A, Method B, and NEMA Standard
                 MGI-12.536.
         2.      The nominal efficiency shall be in accordance with, or better than, the
                 following:

         HP                      NOMINAL EFFICIENCY
         1                           82.1
         1-1/2                       83.5
         2                           84.6
         3                           86.3
         5                           87.4

    H.   Electrical Characteristics:
         1.      Motors 3/4 hp and larger shall be three phase, of voltage shown in Electrical
                 Section of Contract Documents, squirrel cage induction normal starting
                 torque, unless otherwise noted.
         2.      Motors 1/2 hp and smaller shall be 115 volt single phase, permanent split
                 capacitor start.

    I.   Multispeed Motors
         1.     Type: Motors may be one of the following:
                a.    Two speed, two winding 1800/900 rpm.
                b.    Two speed, one winding 1800/900 rpm.

    J.   Motor Types:
         1.    Open drip proof (ODP) for all indoor locations.
         2.    Totally enclosed fan cooled (TEFC) for all outdoor locations.

BRENTWOOD MIDDLE SCHOOL
                                       15170-2
2.02   STARTERS

       A.   Manufacturers:
            1.    Allen Bradley.
            2.    Cuttler Hammer.
            3.    General Electric.
            4.    Square D.
            5.    Westinghouse.

       B.   Type: Across the line except where noted.

       C.   Enclosure: As required for location.

       D.   Overload Protection:
            1.     Type: Trip-free thermal overload relay.
            2.     Location: Each ungrounded conductor.
            3.     Reset: Manual.
            4.     Ambient Temperature Compensation: Provide where required.

       E.   Auxiliary Contacts:
            1.     Provisions to add three without removing starter from enclosure.
            2.     Number: Provide up to three per starter as required for control sequence.

       F.   Switches in Cover:
            1.     Manually Controlled: Three wire start-stop.
            2.     Automatically Controlled: Hand-Off-Automatic.

       G.   Control Transformer:
            1.     Provide when line voltage exceeds 240 volts.
            2.     Secondary wiring shall have one leg fused and the other grounded.

       H.   Provide starters for all motors as follows:
            1.     Single phase motors less than 3/4 hp.
                   a.      With internal overload protection: None.
                   b.      Without internal overload protection:
                           (1)      Manually Controlled: Manual starter.
                           (2)      Automatically Controlled: Magnetic starter.
            2.     Single phase motors 3/4 hp and larger:
                   a.      Manually Controlled: Manual starter.
                   b.      Automatically Controlled: Magnetic starter.
            3.     Three Phase Motors: Magnetic starter.

       I.   Multi-Speed Starters
            1.     Starters shall be suitable for the type multi-speed motor selected.
            2.     Provide time delay for automatic transfer from high to low speed.

BRENTWOOD MIDDLE SCHOOL
                                          15170-3
PART 3      EXECUTION

3.01   MOTORS

       A.   Install motors on motor mounting systems so coupling or belt drive is properly
            aligned. Provide proper belt tension. Dowel direct coupled motors.

3.02   STARTERS

       A.   Deliver to installer of electrical work.

                                    END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                           15170-4
                SECTION 15190 - MECHANICAL IDENTIFICATION

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

PART 2      PRODUCTS

2.01   GENERAL

       A.   Except as otherwise indicated, provide manufacturer's standard products.

       B.   Where more than a single type is specified for an application, selection is Installer's
            option, but provide a single selection for each application.

2.02   PLASTIC PIPE MARKERS

       A.   Provide manufacturer's standard pre-printed, flexible or semi-rigid, permanent,
            color-coded, plastic-sheet pipe markers complying with ANSI A13.1.

       B.   For Pipes Less Than Six Inches (including insulation if any): Provide full-band pipe
            markers, extending 360 degrees around pipe at each location, fastened by one of the
            following methods:
            1.     Snap-on application of pre-tensioned semi-rigid plastic pipe marker.
            2.     Adhesive lap joint in pipe marker overlap.
            3.     Taped to pipe (or insulation) with color-coded plastic adhesive tape, not less
                   than 3/4" wide; full circle at both ends of pipe marker, tape lapped 1-1/2".

       C.   For Pipes Six Inches and Larger (including insulation if any): Provide either full
            band or strip -type pipe markers, but not narrow than 3 x letter height, taped to pipe
            (or insulation) with color-coded plastic adhesive tape, not less than 1-1/2" wide; full
            circle at both ends of pipe marker, tape lapped 3".

       D.   Lettering: Manufacturer's standard pre-printed wording which best describes piping
            system.

       E.   Arrows: Print each pipe marker with arrows indicating direction of flow, either
            integrally with piping system service lettering or as a separate unit of plastic (to
            accommodate both directions).

BRENTWOOD MIDDLE SCHOOL
                                          15190-1
2.03   VALVE TAGS

       A.   Plastic Valve Tags: Provide manufacturer's standard solid white plastic valve tags
            with printed black enamel letter, with piping system abbreviation in approximately
            3/16" high letters and sequenced valve numbers approximately 3/8" high, and with
            5/32" hole for fastener.

       B.   Valve Tag Fasteners: Manufacturer's standard chain (wire link or beaded type), or S-
            hooks.

       C.   Valve Schedule:
            1.     Provide schedule for each piping system, typewritten and reproduced on 8-
                   1/2" x 11" bond paper.
            2.     Tabulate valve number, piping system, system abbreviation (as shown on
                   tag), location of valve (room or space), and variations for identification (if
                   any).
            3.     In addition to mounted copies, furnish extra copies for maintenance manuals
                   as specified.

       D.   Valve Schedule Frames: For each page of the valve schedule, provide a glazed
            frame, with screws for removable mounting on masonry walls.

2.04   ENGRAVED PLASTIC-LAMINATE SIGNS

       A.   General: Provide engraving stock melamine plastic laminate, 1/16" thick, black with
            white core (letter color).

       B.   Fastening:
            1.     Screws.
            2.     Rivets.
            3.     Permanent Adhesive.

       C.   Lettering and Graphics:
            1.      Coordinate names, abbreviations and other designations used in the
                    mechanical identification work, with the corresponding designations shown,
                    specified or scheduled.
            2.      In addition, for heating or cooling units, identify are served.

PART 3      EXECUTION

3.01   GENERAL

       A.   Where identification is to be applied to surfaces which require insulation, painting or
            other covering or finish, install identification after completion of covering and
            painting.

BRENTWOOD MIDDLE SCHOOL
                                          15190-2
       B.   Install identification prior to installation of acoustical ceilings and similar removable
            concealment.

3.02   PIPING SYSTEM IDENTIFICATION

       A.   General: Install pipe markers on piping of the following systems and include arrows
            to show normal direction of flow:
            1.     Domestic water piping (hot, hot circulating and cold).
            2.     Heating water piping (supply and return).
                   a. Indicate temperature when above 200 degrees F.
            3.     Chilled water piping (supply and return).
            4.     Natural gas piping.
            5.     Condenser water (supply and return).
            6.     Refrigerant piping.
            7.     Boiler system piping (make-up, condensate, vent, chemical treatment).
            8.     Sanitary sewer, waste and vent (above grade).
            9.     Storm drain regular and overflow.

       B.   Locate pipe markers and color bands as follows wherever piping is exposed to view
            in occupied spaces, accessible maintenance spaces:
            1.     Near each valve and control device.
            2.     Near each branch, excluding short take-offs for fixtures and terminal units.
                   Mark each pipe at branch, where there could be a question of flow pattern.
            3.     Near locations where pipes pass through walls, floors, ceilings, or enter
                   non-accessible enclosures.
            4.     Near major equipment items and other points of origination and termination.
            5.     Spaced intermediately at maximum spacing of 50' along each piping run.


3.03   VALVE IDENTIFICATION

       A.   Provide valve label on every valve, cock and control device in each piping system;
            exclude check valves, valves within factory-fabricated equipment units, plumbing
            fixture faucets, hose bibbs and shut-off valves at plumbing fixtures HVAC terminal
            devices and similar rough-in connections of end-use fixtures and units.

       B.   Provide valve tag on every valve, cock and control device in each piping system;
            excluding check valves, valves within factory-fabricated equipment units, plumbing
            fixture faucets, hose bibbs and shut-off valves at plumbing fixtures, HVAC terminal
            devices and similar rough-in connections of end-use fixtures and units. List each
            tagged valve in valve schedule for each piping system.

       C.   Mount framed valve schedules where directed by Engineer.


BRENTWOOD MIDDLE SCHOOL
                                           15190-3
3.04   MECHANICAL EQUIPMENT IDENTIFICATION

       A.   Install an engraved plastic laminate sign on or near each major item of mechanical
            equipment.
            1.       For roof mounted equipment, identify areas served by equipment.
            2.       Provide signs for the following general categories of equipment and
                     operational devices:
                     a.     Pumps.
                     b.     Chillers.
                     c.     Cooling Towers.

3.06   NON-POTABLE WATER IDENTIFICATION

       A.   Provide an engraved plastic laminate sign.
            1.     Legend: "Non-Potable Water".
            2.     Location: At each outlet of piping downstream of backflow preventer.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                         15190-4
                      SECTION 15240 - VIBRATION CONTROL

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SUBMITTALS

       A.   General: For each unit, submit manufacturer's product data. Include:
            1.    Drawings.
            2.    Installation instructions.
            3.    Isolation efficiency.
            4.    Stiffness.
            5.    Natural frequency and transmissibility at lowest operating speed of
                  equipment.

       B.   For Spring Units: Include:
            1.     Wire size.
            2.     Spring diameter.
            3.     Free height.
            4.     Solid compression height.
            5.     Operating height and ratio of horizontal to vertical stiffness.

       C.   Shop Drawings: Submit shop drawings showing structural design and details of steel
            beam bases, curb bases and other custom-fabricated work not covered by
            manufacturer's submitted data.

PART 2      PRODUCTS

2.01   MANUFACTURERS

       A.   Design Basis: Mason.
            1.     Other Acceptable Manufacturers:
                   a.     Amber Booth.
                   b.     Consolidated Kinetics.
                   c.     Vibration Mountings and Controls, Inc.

2.02   DOUBLE DEFLECTION NEOPRENE MOUNT


BRENTWOOD MIDDLE SCHOOL
                                          15240-1
       A.   Model: ND.
       B.   Minimum Static Deflection: 0.35 inches.

       C.   Provide bolt holes and friction pads top and bottom.

       D.   Location:

PART 3      EXECUTION

3.01   GENERAL

       A.   Except where indicated otherwise, comply with the minimum static deflections
            recommended by the American Society of Heating, Refrigerating and
            Air-Conditioning Engineers, including the definitions of critical and non-critical
            locations, for the selection and application of vibration isolation materials and units.

3.02   INSTALLATION

       A.   General:
            1.    Adjust to ensure that units do not exceed rated operating deflections or
                  bottom-out under loading and are not short-circuited by other contacts or
                  bearing points.
            2.    Remove space blocks and similar devices (if any) intended for temporary
                  protection against overloading during installation.

       B.   Anchor and attach units to substrate and equipment as required for secure operation
            and to prevent displacement by normal forces and as indicated.

       C.   Adjust leveling devices as required to distribute loading uniformly onto isolators.
            Shim units as required where leveling devices cannot be used to distribute loading
            properly.

       D.   Install inertia base frames on isolator units as indicated, so that a minimum of 1"
            clearance below base will result when frame is filled with concrete and supported
            equipment has been installed and loaded for operation.

       E.   Spring Hangers:
            1.     Install isolators on three hangers closest to isolated equipment.

       F.   Pipe Hangers:
            1.     Install isolators on three hangers closest to isolated equipment.

                                    END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                           15240-2
                  SECTION 15250 - MECHANICAL INSULATION

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SUBMITTALS

       A.   Submit manufacturer's product data on the following:
            1.    Insulation.
            2.    Jackets, coatings and protective finishes.
            3.    Sealers, mastics and adhesives.
            4.    Fitting covers.

1.03   FLAME AND SMOKE RATINGS

       A.   Provide composite installation (insulation, jacket, covering, sealer, mastic and
            adhesive) complying with the following:
            1.     Flame Spread: 25 or Less.
            2.     Smoke Developed: 50 or Less.
            3.     Method: ASTM E84 (NFPA 255).

1.04   PRODUCT DELIVERY

       A.   Deliver insulation products in factory containers bearing manufacturer's label
            showing fire hazard rating, density and thickness.

1.05   DEFINITIONS

       A.   Exposed Location: Located in mechanical rooms or other rooms.

       B.   Concealed Location: Located in pipe chases, furred spaces, attics, crawl-spaces,
            above suspended ceilings, or other locations not exposed to view.




BRENTWOOD MIDDLE SCHOOL
                                         15250-1
PART 2      PRODUCTS

2.01   PIPE INSULATION

       A.   Manufacturers:
            1.    Design Basis: Schuller.
            2.    Other Acceptable Manufacturers:
                  a.      Armstrong.
                  b.      Certainteed.
                  c.      Foster.
                  d.      Owens-Corning.
                  e.      Knauf.
                  f.      IMCOA.

       B.   Materials:
            1.     Fiberglass Pipe Insulation: Schuller Micro-Lok 850, heavy density pipe
                   insulation with AP-T jacket.
            2.     Fiberglass Pipe Fitting Insulation: Schuller "Zeston" fitting covers with
                   factory-cut fiberglass insulation insert.
            3.     Flexible Unicellular Pipe Insulation: Rubatex, Armaflex or Imcolock.

       C.   Application: Unless otherwise indicated, use the following:
            1.     Fiberglass pipe insulation above ground inside buildings.
            2.     Flexible unicellular pipe insulation on outdoor chilled water and refrigerant
                   piping.
            3.     Flexible unicellular pipe insulation on water piping under slab.

       D.   Thickness:
            1.    Chilled Water:
                  a.     Size Over 2": 1-1/2" Fiberglass.

       E.   Application: Unless otherwise indicated, use the following:
            1.     Fiberglass pipe insulation above ground inside buildings.

2.02   PIPE AND FITTING COVERS

       A.   Manufacturers:
            1.    Acceptable Manufacturers:
                  a.      Schuller.
                  b.       Armstrong.
                  c.       Certainteed.
                  d.      Knauf.

       B.   Material: UV Resistant PVC.


BRENTWOOD MIDDLE SCHOOL
                                          15250-2
       C.   Thickness: 0.020 inches.

       D.   Fire and Smoke Rating: 25/50.

       E.   Closure System: Solvent glue continuous all joints and seams.

PART 3      EXECUTION

3.01   PIPE INSULATION

       A.   Installation:
            1.      Install insulation on pipe systems subsequent to testing and acceptance of
                    tests.
            2.      Install insulation materials with smooth and even surfaces.
                    a.       Insulate each continuous run of piping with full-length units of
                             insulation, with a single cut piece to complete the run.
                    b.       Do not use cut pieces or scraps abutting each other.
            3.      Clean and dry pipe surfaces prior to insulating.
                    a.       Butt insulation joints firmly together to ensure a complete and tight fit
                             over surfaces to be covered.
            4.      Extend piping insulation without interruption through walls, floors and
                    similar piping penetrations, except where otherwise indicated.
            5.      Install protective sheetmetal shield around bottom half of pipe insulation at
                    each pipe support sufficient to prevent crushing of the insulation.
            6.      Install pre-manufactured, heavy density pipe shields in lieu of pipe insulation
                    at each pipe support.

            7.      Except as noted, cover valves, flanges, fittings, victaulic couplings and
                    similar items in each piping system with equivalent thickness and
                    composition of insulation as applied to adjoining pipe run.
                    a.      Install factory-molded, pre-cut or job-fabricated units (at Installer's
                            option), except where a specific form or type is indicated.
                    b.      Do not cover:
                            (1)      Valve operators.
                            (2)      Threaded or solder joint strainers.
                            (3)      Balancing valves.
                            (4)      Blowdown end of strainers except on chilled water.
                            (5)      Stem of balancing valves.
            8.      Mark location of unions and flanges covered by insulation with permanent
                    paint or ink, painted stencil or approved label.
            9.      Maintain integrity of vapor-barrier jackets on insulation of cold pipes, and
                    protect to prevent puncture or other damage.
            10.     Insulate between pipe and pipe saddles.
            11.     Seal ends of sections with vapor barrier cement at:
                    a.      21 ft. intervals.

BRENTWOOD MIDDLE SCHOOL
                                            15250-3
               b.       Valves and fittings.
         12.   On underground pipe insulation, install unicellular insulation on pipe without
               slitting insulation.
               a.       Seal all transverse joints with adhesive.
         13.   Replace existing insulation removed or damaged because of work of this
               project.
         14.   Insulate new pipes and replace insulation on existing pipes to remain where
               insulation was removed or damaged by demolition or revisions.
         15.   Do not insulate basket access flange of flanged strainers except on chilled
               water.
         16.   Do not insulate steam traps.
         17.   Insulate between fingers of spiders in alignment guides.
         18.   Insulate between pipe and pipe slide.

                               END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                     15250-4
                        SECTION 15510 - HYDRONIC PIPING

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   DESCRIPTION OF WORK

       A.   This Section covers water piping carrying water at 240 degrees F. or less, used in the
            following systems:
            1.     Chilled water piping.
            2.     Condenser water piping.
            3.     Condensate drain piping.

1.03   SUBMITTALS

       A.   Submit manufacturer's product data on the following:
            1.    Strainers.
            2.    Air vents.
            3.    Pressure reducing fill valves.
            4.    Pressure-temperature taps.
            5.    Balancing valves.
            6.    Thermometers.
            7.    Pressure gauges.
            8.    Hydronic filters.
            9.    Expansion compensators.

PART 2      PRODUCTS

2.01   PIPE AND FITTINGS

       A.   Above ground size 2" and Smaller:
            1.    Steel pipe, Schedule 40 with 125 lb cast iron threaded fittings.
                  or
            2.    Copper tube, hard temper, Type M with wrought copper fittings and 95-5 tin-
                  antimony solder.

       B.   Above ground size 2-1/2" thru 10": Steel pipe, Schedule 40 with black
            steel, standard weight, butt weld fittings or 125 lb cast iron flanged fittings.

BRENTWOOD MIDDLE SCHOOL
                                           15510-1
       C.   Above ground size 12" and larger: Steel pipe, standard weight black steel, standard
            weight, butt weld fittings or 125 lb. cast iron, flanged fittings.

2.02   STRAINERS

       A.   Manufacturers:
            1.    Armstrong.
            2.    Mueller.
            3.    Sarco.
            4.    RP&C.

       B.   Size 2" and Smaller: 125 lb cast iron, threaded, with blow down plug. Provide teflon
            tape on all male threads.

       C.   Size 2-1/2" and Larger: 125 lb cast iron, flanged, with 3/4" blow down valve.
            Provide teflon tape on all male threads.

       D.   Screens:
            1.     Material: Type 304 stainless steel.
            2.     Perforations: 0.045" diameter, 225/233 holes per square inch for water. #20
                   mesh for steam.

2.03   AIR VENTS

       A.   Manufacturers:
            1.    Amtrol.
            2.    Bell & Gossett.
            3.    Taco.
            4.    Thrush.
            5.    Armstrong.

       B.   Resilient Parts: EPDM.

       C.   Vents on Pipes Size 2" and Smaller: Model 703.

       D.   Vents on Pipes Size 2-1/2" and Larger: Model 706.

       E.   Vents on Air Purgers: Model 706.

2.04   PRESSURE REDUCING FILL VALVES

       A.   Manufacturers:
            1.    Bell & Gossett.
            2.    Taco.

BRENTWOOD MIDDLE SCHOOL
                                         15510-2
            3.     Thrush.
            4.     Watts.
            5.     Conbraco

       B.   Size: 3/4".

       C.   Model:
            1.     8 psig to 25 psig: No. 12.
            2.     25 psig to 60 psig: No. 7.

2.05   PRESSURE-TEMPERATURE TEST PLUGS

       A.   Manufacturers:
            1.    Sisco.
            2.    Universal Lancaster, Inc.
            3.    Petes Plug.

       B.   Model: BNO-500, 1/4" NPT, or 1/2" NPT.

       C.   Construction:
            1.     Body and Cap: Brass.
            2.     Pressure: 500 psig.
            3.     Temperature: 350 degrees F.
            4.     Core: EPDM, self-sealing.
            5.     Cap: Gasketed, threaded.

       D.   Thermometer:
            1.    Number required: 5.
            2.    Dial diameter: 2".
            3.    Range: 0 degrees to 220 degrees.

       E.   Pressure Gauge Adapter
            1.     Number required: 5.
            2.     Model: GA-125.

       F.   Pressure Gauge:
            1.     Number required: 5.
            2.     Dial diameter: 4-1/2".
            3.     Range: 0 to 100 OR 200 psig.
            4.     Accuracy: 1/2%.

2.06   THERMOMETERS

       A.   Manufacturers:
            1.    Duro.

BRENTWOOD MIDDLE SCHOOL
                                         15510-3
           2.     Weiss.
           3.     Marsh.

      B.   Scale: 7".

      C.   Range: 30 degrees to 240 degrees.

      D.   Housing: Adjustable 180 degrees.

2.7   FLOW MEASURING DEVICES

      A.   Manufacturers:
           1.    Ellison.
           2.    Taco.
           3.    PSE.
           4.    Presso.

      B.   Model: Annubar.

      C.   Accessories:
           1.    Stop valves.
           2.    Quick disconnects.
           3.    Caps.
           4.    Calibration card.

2.8   RELIEF VALVES

      A.   Manufacturers:
           1.    Design Basis: Bell & Gossett.
           2.    Other Acceptable Manufacturers:
                 a.      Taco.
                 b.      Thrush.
                 c.      Watts.
                 d.      Conbraco.

      B.   Type: ASME.

      C.   Size: Maximum input capacity of system at design pressure.

      D.   Setting: Design pressure of system.

2.9   EXPANSION COMPENSATORS

      A.   Manufacturers:
           1.    Flexonics.

BRENTWOOD MIDDLE SCHOOL
                                       15510-4
       B.   Sizes 3/4" to 3":
            1.     Series: H.
            2.     Bellows: Stainless steel.
            3.     Shroud: Stainless steel.
            4.     Maximum Operating Temperature: 750Ε F.
            5.     Maximum Operating Pressure: 150 psig.
            6.     Compression Stroke: 1.75".
            7.     Expansion Stroke: 0.25".
            8.     Ends: Male pipe threads.

       C.   Sizes 4" to 24".
            1.     Series: CSF.
            2.     Bellows: Stainless steel.
            3.     Shroud: Stainless steel.
            4.     Flanges: Stainless steel.
            5.     Maximum Operating Temperature: 800Ε F.
            6.     Maximum Operating Pressure: 300 psig.
            7.     Axial Transverse: 2" minimum.
            8.     Ends: Flanged.

PART 3      EXECUTION

3.01   DRAINS

       A.   Install drains at the low points of the piping system and where shown on drawings.

3.02   EQUIPMENT CONNECTIONS

       A.   Do not allow weight of piping or expansion of piping to put stress on equipment
            connections.

3.03   REARRANGEMENT

       A.   Do not rearrange piping in a manner to increase pressure drop without written
            approval of Engineer.

3.04   AIR VENTS

       A.   Install automatic/manual air vents at all high points in equipment rooms.

       B.   Install manual air vents on high points not in equipment rooms.

3.05   RELIEF VALVES


BRENTWOOD MIDDLE SCHOOL
                                         15510-5
       A.   Install pressure relief valves on all vessels which may be isolated from other relief
            valves by closing valves.


3.06   PRESSURE-TEMPERATURE TEST PLUGS

       A.   In Pipes 2" and Smaller: Install taps in tee at change in direction so inserted
            thermometer stem will be parallel to center line of pipe.
            1.     Add extra change in direction if necessary.
            2.     Allow clearance for insertion of thermometer.
            3.     Insure that gauge or thermometer will be in a readable position.

3.07   BULLHEAD CONNECTIONS

       A.   Regardless of how shown on schematic piping diagrams, do not install a tee so flow
            enters from opposite directions.

3.08   CLEANING

       A.   See Section 15680 for Piping System Flushing.

       B.   Fill system with fresh water.

       C.   Advise Owner that system is ready for analysis by Owner's water treatment supplier.

       D.   Remove bushings and plugs in all strainers and reinstall both with Teflon tape on
            male threads. Do not over-tighten.

3.09   DI-ELECTRIC SEPARATION

       A.   Use di-electric unions or flanges with proper gaskets to separate all joints between
            dissimilar pipe materials.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                            15510-6
                               SECTION 15540 - PUMPS

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the Contract, including general Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   MOTOR HORSEPOWER

       A.   Do not increase or decrease motor horsepower from that specified without written
            approval from Engineer.

       B.   Select pumps so bhp does not exceed motor horsepower at rating point, and does not
            exceed motor horsepower plus service factor at any point on curve.

1.03   SUBMITTALS

       A.   Manufacturers Product Data: Submit manufacturer's product data on pumps.
            1.    Include pump curve and mark rating point.
            2.    Show maximum allowable operating temperature and pressure.
            3.    Note in red any deviations from specified construction.
            4.    Show impeller diameter and indicate if impeller is machined down.

PART 2      PRODUCTS

2.02   FLEXIBLE COUPLED END SUCTION PUMP

       A.   Manufacturers:
            1.    Bell & Gossett
            2.    Taco
            3.    Paco.

       B.   Design Conditions:
            1.     Pressure: 175 psig.
            2.     Water temperature: 225 degrees F.

       C.   Model: As scheduled.

       D.   Construction:
            1.     Casing:    Cast iron.

BRENTWOOD MIDDLE SCHOOL
                                           15540-1
            2.     Impeller: Bronze, statically and dynamically balanced.
            3.     Wear Ring: Bronze.
            4.     Shaft: Steel with bronze sleeve or stainless steel.
            5.     Shaft Seal: Mechanical.
            6.     Shaft Seal: Packing.
            7.     Volute with gauge tappings, vent and drain tappings.
            8.     Open dripproof motor.

PART 3      EXECUTION

3.01   INSTALLATION

       A.   General:
            1.    Install pumps to allow complete removal without dismantling connecting
                  piping.
            2.    Provide air cock and drain connection on horizontal pump casing.
            3.    Decrease from line size with long radius reducing elbows or reducers.
            4.    Support piping adjacent to pump so that no weight is carried on pump
                  casings.
            5.    Provide supports under elbows on pump suction and discharge line sized 4"
                  and over.

       B.   Level and Alignment - Base Mounted Pumps:
            1.     Before any piping or electrical connections are made, level and align pumps
                   and motors on bases and foundation pads using an indicating micrometer.
            2.     After connections have been made and just prior to placing each pump in
                   operation, recheck levels and alignments.
                   a.     Make adjustments to assure that shaft rotates freely when turned by
                          hand and that pump is quiet in operation.
                   b.     When adjustments are completed, tightly bolt and grout motor and
                          pump.

       C.   Lubrication: After completion of the system and before start-up, lubricate the pumps.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                          15540-2
                          SECTION 15680 - WATER CHILLERS

PART 1        GENERAL

1.01   RELATED DOCUMENTS

       A.     Drawings and general provisions of the contract, including General Conditions and
              Division 1 Specification Sections, apply to work of this Section.

       B.     Where contradictions occur between this Section and Division 1, the most stringent
              of the two shall apply.

PART 2        PRODUCTS

2.01   OPERATING CONDITIONS

              A.     Provide water-cooled liquid chiller with the capacity as scheduled
                     on drawings at job site elevation listed on Drawings.

              B.     Chiller shall be designed to operate using R-410a Refrigerant.

              C.     Chiller shall be designed for parallel evaporator water flow.

              D.     The liquid to be chilled will be water containing corrosion inhibitors.

       2.02   Water-Cooled Packaged Chiller

              A.     Approved manufacturer is MULTISTACK.

              B.     System Description: Chiller shall incorporate Scroll-type
                     compressors consisting of multiple ton modules. Each refrigerant circuit
                     shall consist of an individual compressor, common dual circuited
                     condenser, dual circuited evaporator, thermal expansion valves, and
                     control system. Each circuit shall be constructed to be independent of
                     other circuits from a refrigeration and electrical stand-point. The multi-
                     circuit chiller must be able to produce chilled water even in the event of a
                     failure of one or more refrigerant circuits. Circuits shall not contain more
                     than lb. of R-410a refrigerant.

              C.     General

                     1.     Chiller Modules shall be ETL listed in accordance with
                            UL Standard 465, CSA certified per Standard C22.2#119.

                     2.     Chiller modules shall be AHRI certified.

BRENTWOOD MIDDLE SCHOOL
                                           15680-1
              3.     Modules shall ship wired and charged with refrigerant. All
                     modules shall be factory run tested prior to shipment on an AHRI
                     certified or 3rd party verified test stand.

              4.     Compressors, heat exchangers, piping and controls shall be
                     mounted on a heavy gauge, powder coated steel frame. Electrical
                     controls, contactors, and relays for each module shall be mounted
                     within that module.

         D.   Chilled and Condenser Water Mains: Each module shall include supply
              and return mains for both chilled and condenser water. Cut grooved end
              connections are provided for interconnection to six inch standard (6.625” )
              outside diameter) piping with grooved type couplings. Rolled grooved
              shall be unacceptable. Water Mains shall be installed such that they are
              beneath any power or control wiring so as to insure for safe operation in
              the event of condensation or minor piping leaks.

         E.   Evaporators and condensers: Each evaporator and condenser shall be
              brazed plate heat exchangers constructed of 316 stainless steel; designed,
              tested, and stamped in accordance with UL 1995 code for 650 psig
              working pressure on the evaporator and 650 psig working pressure on the
              condenser. Both the condenser and evaporator heat exchanger shall be
              mounted below the compressor, to eliminate the effect of migration of
              refrigerant to the cold evaporator with consequent liquid slugging on start-
              up.

         F.   Isolation valves shall be installed between the heat exchangers and
              water supply mains for heat exchanger isolation and removal without the
              requirement to shut down the entire chiller allowing for total access to all
              serviceable components.

         G.   Compressor: Each module shall contain two hermetic scroll compressors
              independently circuited and with internal spring isolation mounted to the
              module with rubber-in-shear isolators. Each system also includes high
              discharge pressure and low suction pressure manual reset safety cut-outs.

         H.   Central Control System.

              1.     Scheduling of the various compressors shall be performed by a
                     microprocessor based control system (Master Controller). A new
                     lead compressor is selected every 24 hours to assure even
                     distribution of compressor run time.

              2.     The Master Controller shall monitor and report the following on

BRENTWOOD MIDDLE SCHOOL
                                    15680-2
                   each refrigeration system:

                   a.     Discharge Pressure Fault
                   b.     Suction Pressure Fault
                   c.     Compressor Winding Temperature
                   d.     Suction Temperature
                   e.     Evaporator Leaving Chilled Water Temp.

              3.   The Master Controller shall be powered by the chillers single point
                   power connection and shall monitor and report the following
                   system parameters:

                   a.     Chilled Water Entering and Leaving Temperature
                   b.     Condenser Water Entering and Leaving
                          Temperature
                   c.     Chilled Water and Condenser Water Flow

              4.   An out of tolerance indication from these controls or sensors shall
                   cause a “ fault” indication at the Master Controller and shutdown of
                   that compressor with the transfer of load requirements to the next
                   available compressor. In the case of a System Fault the entire
                   chiller will be shut down. When a fault occurs, the Master
                   Controller shall record conditions at the time of the fault and store
                   the data for recall. This information shall be capable of being
                   recalled through the keypad of the Master Controller and displayed
                   on the Master Controller’ s 2 line by 40 character back-lit LCD. A
                   history of faults shall be maintained including date and time of day
                   of each fault (up to the last 20 occurrences).

              5.   Individual monitoring of leaving chilled water temperatures from
                   each refrigeration system shall be programmed to protect against
                   freeze-up.
              6.   The control system shall monitor entering and leaving chilled water
                   temperatures to determine system load and select the number of
                   compressor circuits required to operate. Response times and set
                   points shall be adjustable. The system shall provide for variable
                   time between compressor sequencing and temperature sensing, so
                   as to fine tune the chiller to different existing building conditions.

              7.   The Chiller shall be capable of interfacing to a building automation
                   system. Interface shall be accomplished using an Interoperability
                   Web Portal and shall be capable of communication over BACNet,
                   Modbus or LON.

              8.   Chiller shall be capable of operation in the event that the Master

BRENTWOOD MIDDLE SCHOOL
                                  15680-3
                       Controller has lost communication. FRM provides the ability to
                       switch the chiller into manual mode automatically keeping the
                       chiller online until a replacement Master controller can be
                       provided. FRM requires a power phase monitor per module.

           I.   Chiller shall have a single point power connection and external inputs and
                outputs to be compatible with the building management system.
                Inputs/Outputs include:

                1.     Remote Start/Stop
                2.     Customer Alarm Relay
                3.     Customer Chilled/Load Limit Reset Signal
                4.     ECW to Mechanical Cooling Module
                5.     LCW from Mechanical Cooling Module
                6.     ECHW to Mechanical Cooling Module
                7.     LCHW from Mechanical Cooling Module
                8.     Power Phase Monitor
                9.     Chilled Water Flow Switch Input
                10.    Condenser Water Flow Switch Input
                11.    Full Load Indicator Relay
                12.    Condenser Pump Relay
                13.    DDRS Condenser Multiflush Relay
                14.    Chilled Water Pump Relay

           J.   Each inlet water header shall incorporate a built in 30-mesh (maximum)
                in-line strainer system to prevent heat exchanger fouling and accommodate
                100% flow filtration with a minimum surface area of 475 sq inches per
                module. Condenser-side strainer system shall incorporate an automatic
                debris blow-down system for self-cleaning of the strainer system that is
                controlled and powered by the chiller.

           K.   Single Point Power: Chiller shall be equipped with a pre-engineered
                genuine buss bar electrical system for single point power. Where the
                equipment size exceeds the amp rating of the buss bar, multiple power
                connections may be applied. Pre-engineered system shall also incorporate
                individual module isolation circuit breakers for full redundancy and ability
                of a module to be taken off-line for repair while the rest of the modules
                continue to operate. Individual power feeds to each module shall be
                unacceptable.

    2.03   SAFETIES, CONTROLS AND OPERATION

           A.   Chiller safety controls system shall be provided with the unit
                (minimum) as follows:


BRENTWOOD MIDDLE SCHOOL
                                      15680-4
              1.     Low evaporator refrigerant pressure
              2.     Loss of flow through the evaporator
              3.     Loss of flow through the condenser
              4.     High condenser refrigerant pressure
              5.     High compressor motor temperature
              6.     Low suction gas temperature
              7.     Low leaving evaporator water temperature

         B.   Failure of chiller to start or chiller shutdown due to any of the above safety
              cutouts shall be annunciated by display of the appropriate diagnostic
              description at the unit control panel. This annunciation will be in plain
              English. Alphanumeric codes shall be unacceptable.

         C.   The chiller shall be furnished with a Master Controller as an integral
              portion of the chiller control circuitry to provide the following functions:

              1.     Provide automatic chiller shutdown during periods when the load
                     level decreases below the normal operating requirements of the
                     chiller. Upon an increase in load, the chiller shall automatically
                     restart.

              2.     Provisions for connection to automatically enable the chiller from a
                     remote energy management system.
              3.     The control panel shall provide alphanumeric display showing all
                     system parameters in the English language with numeric data in
                     English units.

              4.     Each module shall contain a slave controller that will allow any
                     module to run in the event of a master controller failure or loss of
                     communication with the master controller via an on/off/manual
                     toggle switch.

         D.   Normal Chiller Operation

              1.     When chiller is enabled, the factory supplied Master Controller
                     stages the chiller capacity from minimum to maximum as required
                     by building load.

              2.     The Chiller control system shall respond to Entering Water
                     Temperature and will have an integral reset based on entering
                     water temperature to provide for efficient operation at part-load
                     conditions.

         E.   Power Phase Monitor


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                                     15680-5
                  1.     Provide a Power Phase Monitor on the incoming power supply to
                         the chiller. This device shall prevent the chiller from operating
                         during periods when the incoming power is unsuitable for proper
                         operation.

                  2.     The Power Phase Monitor shall provide protection against the
                         following conditions:

                         a.      Low Voltage (Brown-Out)
                         b.      Phase Rotation
                         c.      Loss of Phase
                         d.      Phase Imbalance

PART 3      I NSTALLATI ON

     3.01   PIPING SYSTEM FLUSHING PROCEDURE

            A.    Prior to connecting the chiller to the condenser and chilled water loop, the
                  piping loops shall be flushed with a detergent and hot water (110-130° F)
                  mixture to remove previously accumulated dirt and other organics.

            B.    During the flushing, a 30 mesh (max.) Y-strainer (or acceptable
                  Equivalent) shall be in place in the system piping and examined
                  periodically as necessary to remove collected residue. The use of on board
                  chiller strainers shall not be acceptable. The flushing process shall take no
                  less than 6 hours or until the strainers when examined after each flushing
                  are clean. Old systems with heavy encrustation shall be flushed for a
                  minimum of 24 hours and may take as long as 48 hours before the filters
                  run clean. Detergent and acid concentrations shall be used in strict
                  accordance with the respective chemical manufacturer’ s instructions.
                  After flushing with the detergent and/or dilute acid concentrations the
                  system loop shall be purged with clean water for at least one hour to
                  ensure that all residual cleaning chemicals have been flushed out.

            C.    Prior to supplying water to the chiller the Owner’ s Water Treatment
                  Specialist shall be consulted for requirements regarding the water quality
                  during chiller operation. The appropriate chiller manufacturer’ s service
                  literature shall be available to the operator and/or service contractor and
                  consulted for guidelines concerning preventative maintenance and off-
                  season shutdown procedures.

     3.02   Water Treatment Requirements

            A.    Supply water for both the chilled water and condenser water circuits shall
                  be analyzed and treated by a professional water treatment specialist who is

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                                        15680-6
                     familiar with the operating conditions and materials of construction
                     specified for the chiller’ s heat exchangers, headers and associated piping.
                     Cycles of concentration shall be controlled such that recirculated water
                     quality for modular chillers using 316 stainless steel brazed plate heat
                     exchangers and carbon steel headers is maintained within the following
                     parameters:

                     1.   pH                                Greater than 7 and less than 9
                     2.   Total Dissolved Solids (TDS)      Less than 1000 ppm
                     3.   Hardness as CaCO3                 30 to 500 ppm
                     4.   Alkalinity as Ca CO3              30 to 500 ppm
                     5.   Chlorides                         Less than 200 ppm
                     6.   Sulfates                          Less than 200 ppm

       3.03   Warranty and Start-Up

       A.     Manufacturer’s Warranty: Manufacturer shall provide full parts-only warranty
              coverage for entire chiller for a period of one year. All parts shall be warranted
              against defects in material and workmanship. Similar parts-only coverage shall be
              provided for the chillers compressors for a period of five years. The warranty
              period shall commence either on the equipment start-up date or six months after
              shipment, whichever is earlier.

       B.     Manufacturer shall provide the services of a Factory Authorized Service
              Engineer to provide complete start-up supervision. Factory Authorized Service
              Engineer shall also be responsible for assembly of the chillers cabinetry package
              and electrical bus bar system. After start-up a Manufacturer’s Representative
              shall provide a minimum of 8-hours of operator training to the owner’s designated
              representative(s).

PART 3        EXECUTION

3.01   INSTALLATION

       A.     Locate chiller in general position indicated in relation to other work.
              1.     Position chiller with sufficient clearance for normal service and maintenance,
                     including clearance for cleaning and replacement of tubes, filters, motor, etc.

       B.     Install pressure relief valves in compliance with governing regulations.

3.02   START-UP

       A.     Sustained Operation: Do not place chiller in sustained operation prior to initial
              balancing of mechanical systems affected by chiller operation.


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                                            15680-7
       B.   Cooperate with other trades and installers of other work during testing, adjusting,
            balancing and start-up of mechanical systems.

3.03   WARRANTY

       A.   Provide one year parts and labor warranty. Warranty period shall commence when
            Owner receives beneficial use of the chiller.

                                   END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                         15680-8
                        SECTION 15710 - COOLING TOWERS

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply.

1.02   SUBMITTALS

       A.   After award submit manufacturer's data including:
            1.     Overall dimensions.
            2.     Operating weights.
            3.     Support loading points and loads.
            4.     Fan cfm and brake horsepower.
            5.     Motor data.
            6.     Sizes and locations of connections.
            7.     Installation instructions.
            8.     Maintenance manuals.

1.03   TESTING

       A.   Tower shall be field or factory tested in accordance with the Cooling Tower
            Institute's Acceptance Test Code for Water Cooling Towers, CTI ATC-105 or:

       B.   If after installation and start-up, there is any question as to the thermal capacity of the
            equipment, the engineer may request the manufacturer to send its engineers to the
            jobsite to conduct a thermal performance test. This test shall be in accordance with
            ASME PTC-23 Power Test Code, latest edition, and shall be observed by the
            engineer. Any deficiency in the equipment shall be corrected by the manufacturer
            solely at his expense and the equipment shall be further retested until it is shown that
            it is performing in accordance with the specification.

       C.   The cost of the test(s) shall be borne by the manufacturer.

PART 2      PRODUCTS

2.01   COOLING TOWERS - CROSSFLOW

       A.   Manufacturers:
            1.    Marley.

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                                            15710-1
         2.      Baltimore Air Coil.
         3.      Evapco.
         4.      Protec.

    B.   Model: As scheduled.

    C.   Collecting Basin:
         1.     Material: Galvanized, stainless steel, PVC or fiberglass.
         2.     Water Outlet:
                a.     Over-sized.
                b.     Located in side of basin near bottom.
                c.     Equalizer in opposite side of basin near bottom.

    D.   Fill:
         1.      Material: PVC or fiberglass.
         2.      Fire Rating: Comply with NFPA 220.

    E.   Eliminators: PVC or fiberglass.

    F.   Water Distribution System: Galvanized steel, PVC or fiberglass open basin with
         plastic metering orifices.

    G.   Basin Covers:
         1.     Material: Galvanized steel, PVC or fiberglass.
         2.     Type: Removable.

    H.   Guards:
         1.    Provide guards for exposed parts of belt or gear drives.

    I.   Fan:
         1.      Airflow: Crossflow.
         2.      Type: Propeller.
         3.      Drive: Belt, gear or direct.
         4.      Air entry: Back side.
         5.      Capacity Adjustment:
                 a.      Variable pitch sheaves.

    K.   Motors:
         1.    Type: TEFC, single speed.
         2.    Location: Protected from humid airstream.

    L.   Make-Up Valve:
         1.    Brass.
         2.    Float type.


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                                       15710-2
       M.   Optional Equipment:
            1.     Variable Frequency Drive

PART 3      EXECUTION

3.01   INSTALLATION

       A.   Install unit level and plumb.

       B.   Provide necessary auxiliary supporting steel.

       C.   Mount motor and drive so belts run true.

3.02   ADJUSTMENTS

       A.   Adjust drive for speed shown in submittal.

       B.   Check motor amps.
            1.    Do not overload motor.

       C.   Check for unusual noise or vibration.

       D.   Provide necessary lubrication.

                                    END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                            15710-3
                                     SECTION 15970

                  BUILDING AUTOMATION SYSTEM CONTROLS

PART 1      GENERAL

1.01   RELATED DOCUMENTS

       A.    Drawings and general provisions of the contract, including General Conditions
             and Division 1 Specification Sections, apply to work of this Section.

       B.    Where contradictions occur between this Section and Division 1, the most
             stringent of the two shall apply.

1.02   WORK DESCRIPTION

       A.    Reconnect the network of existing Barrington controllers for control of new
             Chiller, Cooling Tower and Condenser Water Pumps. The work shall include all
             BAS controllers, sensors, installation, engineering, supervision, acceptance
             testing, training, warranty service and at the owner's option, extended warranty
             service.

1.03   RELATED WORK SPECIFIED ELSEWHERE

       A.    Products furnished and coordinated, but not installed under this section:
             1.    Valves, flow switches, flow sensors, thermowells and pressure taps shall
                   be installed under Division 15.

       B.    Wiring: Electrical wiring in connection with the automatic temperature control
             system (24V or 120V) shall be under Division 15 unless otherwise shown under
             Division 16. Contractor coordination of these items between Division 16 and
             this section is essential.

       C.    Balancing: Adjustment of manual balancing devices as required to obtain design
             water flows shall be performed under Section 15990. Provide to the Section
             15990 contractor during the duration of the project, any requested assistance with
             control adjustments as required to obtain design flow requirements which shall
             include technician personnel, BAS calibration/adjustment hardware, software, and
             training required for making balancing adjustments to the BAS equipment.


1.04   QUALIFICATIONS

       A.    Controls System Installer/Manufacturer: The firm executing the work of this
             section shall have the following qualifications:
             1.      Approved temperature controls Installers/Manufacturers:


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                                         15970 - 1
                   a.     C.W. Industries

       B.   Control system components shall be new.

1.05   SUBMITTALS

       A.   General: All submittal requirements specified shall be provided as a single
            complete package, bound in a 3 ring binder. Provide six (6) submittal copies or
            the amount specified in Division 1, whichever is greater. Incomplete submittal
            packages will be returned un-reviewed.

       B.   Drawings: The controls contractor shall submit PDF generated schematic
            drawings in hard copy and electronic media for the new work for review and
            approval before work shall begin. The submittal drawings shall include the
            following:
            1.     A one page diagram depicting the system architecture complete with a
                   communications riser and peripheral devices.
            2.     Mechanical room layout including:
                   a.      locations of controlled equipment
                   b.      communication and network wiring layout
                   c.      Existing panel locations with unit communication address
                           identifiers.
            3.     A bill of material reference list with:
                   a.       drawing tag identifiers
                   b.       application description
                   c.      manufacturer
                   d.      model number
                   e.      quantity.
            4.     Sequences of operation which shall identify each major component
                   (hardware and software) involved in the control scheme by its tag
                   identifier.
            5.     Software flow diagrams for each sequence of operation.
                   a.      Provide detail of all parameters for inputs, outputs, PID loops, and
                           auxiliary control functions.
       C.   Technical Data:
            1.     The submittals shall include manufacturers catalog data describing each
                   item of control equipment or component provided and installed for the
                   project.
            2.     Include and identify all data needed to show adherence to the
                   corresponding specification section.
            3.     Provide compressor sizing calculations if pneumatic devices are utilized.
            4.     Do not include the damper or valve technical data sheets in this section.
                   Provide separate sections as described below.
       D.   Acceptance Test Plan: Submit a detailed description of acceptance testing
            procedures in a separate tabbed section of the submittal, that will be utilized to
            confirm proper operation of all sequences of operation and input/output points,
            along with acceptance testing checkoff sheets.

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                                        15970 - 2
PART 2 - PRODUCTS

2.01   ACCEPTABLE SYSTEMS

       A.   Approved Systems:
            1.    Barrington

2.02   INPUT SENSORS/TRANSMITTERS

       A.   Temperature Transmitters:        Temperature sensor/transmitter shall be linear
            precision elements with ranges appropriate for applications, input resolution of 0.5
            deg F over the entire span unless otherwise specified.
            1.      Thermowells for all immersion sensors shall be stainless steel or brass as
                    required for application and separable from the sensing element. Provide
                    heat conductive compound between the well and sensor element.
            2.      The following are typical sensor application ranges. These ranges are
                    suggestions only. Transmitters with fixed ranges other than what is listed
                    shall be acceptable provided the meet the input resolution requirements.
                    a.      Chilled Water: 30 to 80 deg F
                    b.      Condenser Water: 20 to 120 deg F

       B.   Flow Sensor - Water:
            1.    Annubar Type: The sensor shall utilize a multi-sensing port array which
                  spans the entire pipe diameter.
                  a.       The conversion of velocity pressure to GPM may occur either in
                           the flow sensor transmitter or digital control system.
                  b.       The accuracy of the sensor shall be +/- 1.0% of full span with a
                           repeatablilty of +/- 0.1%.
                  c.       Provide a sensor removal and isolation system whereby the sensor
                           can be removed from the pipe without draining the line.
                  d.       The installation shall be a minimum of 10 pipe diameters below
                           and 5 diameters above any tees or elbows in the piping.
            2.    Vortex Type: In-line flow element with electronic transmitter producing a
                  linear flow signal.
                  a.       Provide flanged connections or wafer type body, a turndown of
                           20:1 or better, accuracy better than 1% of span, a 4-20 mA output,
                           and mount in a NEMA 4X enclosure.

PART 3 - EXECUTION

3.01   PROJECT MANAGEMENT

       A.   Provide a project manager who shall, as a part of his duties, be responsible for the
            following activities:
            1.     Coordination between the Contractor and all other trades, Owner, local
                   authorities, and the design team.

BRENTWOOD MIDDLE SCHOOL                                                         January 16, 2012
                                         15970 - 3
            2.     Scheduling of manpower, material delivery, equipment installation and
                   checkout.
            3.     Maintenance of construction records such as project scheduling and
                   manpower planning and AutoCAD for project co-ordination and project
                   record drawings.

3.02   WIRING INSTALLATION METHODS

       A.   General:
            1.    Install systems and materials in accordance with manufacturer's
                  instructions, rough-in drawings and equipment details.
            2.    Install electrical components and use electrical products complying with
                  requirements of applicable Division-16 sections of these specifications.
            3.    Install all control wiring system in conduit.
            4.    UL plenum rated cable shall be allowable in concealed air plenums as
                  approved by local codes. All plenum wiring shall utilize bridle rings.

       B.   Definition: The term "control wiring" is defined to include providing of wire,
            conduit, and miscellaneous materials as required for mounting and connecting
            electric or electronic control devices as follows:
            1.      Consists of wiring in pilot circuits of contactors, starters, relays, etc., and
                    wiring for valve and damper operators.
            2.      For single phase devices where power current passes through controller,
                    wiring between controller and device shall be considered control wiring;
                    wiring to device from electric panel shall be considered power wiring.

       C.   Installation:
            1.      All control wiring shall be installed in a neat and workmanlike manner
                    parallel to building lines, with adequate support and shall be supported
                    from or anchored to structural members.
            2.      Conduit or plenum wiring supported from or anchored to piping, duct
                    supports, the ceiling suspension system, or other electrical conduits is not
                    acceptable.
            3.      Wiring buried in slab on grade concrete or explosion proof areas shall be
                    in rigid metal conduit.
            4.      Provide adequate strain relief for all field terminations.

       D.   Identification: Number-code or color-code conductors, excluding those used for
            individual zone controls, appropriately for future identification and servicing of
            control system.

       E.   Line Voltage Wiring:
            1.    All line voltage power wiring required because of substitution of
                  equipment specified in this section, shall be provided by this section.
            2.    All line or low voltage power required for the VAV terminal unit controls
                  not provided by the VAV terminal unit manufacturer or Division 16, shall
                  be provided under this section.

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                                          15970 - 4
       F.   Provide new interlock wiring         for   any relocated     control   devices   for
            renovation/retrofit installations.

3.03   IDENTIFICATION

       A.   All control equipment shall be clearly identified by control shop drawing
            designation as follows:
            1.     Control valves and damper actuators - brass tags or engraved bakelite tags
            2.     Other remote control devices - metal tags or laser printed, adhesive
                   backed, metalized polyester film labels.
            3.     Control Panels - engraved nameplate with panel number and system
                   served.
            4.     Control Conduit Junction Boxes - Painted medium blue.
            5.     Number-code or color-code electrical conductors and pneumatic tubing,
                   excluding those used for individual zone controls. Reflect this tagging or
                   color coding system on the Project Record Documents.

3.04   SYSTEM ACCEPTANCE

       A.   General:
            1.    The system installation shall be complete and tested for proper operation
                  prior to acceptance testing for the Owner's authorized representative.
            2.    A letter shall be submitted to the Engineer requesting system acceptance.
                  This letter shall certify all controls are installed and the software programs
                  have been completely exercised for proper equipment operation.
            3.    Acceptance testing shall commence at a mutually agreeable time within
                  ten (10) calendar days of request.
            4.    When the field test procedures have been demonstrated to the Owner's
                  representative and pass, the system will be accepted. The warranty period
                  shall begin at this time.

       B.   Acceptance Test Procedures: BAS control panels shall be demonstrated via a
            functional end to end test. Prior to an acceptance test review by the Engineer, the
            TC contractor shall submit a completed point to point checklist to the Engineer
            with descriptions of how the following tests were performed. Such that:
            1.     All output channels shall be commanded (on/off, stop/start, adjust, etc.)
                   and their operation verified.
            2.     All analog input channels shall be verified for proper operation.
            3.     All digital input channels shall be verified by changing the state of the
                   field device and observing the appropriate change of displayed value.
            4.     Automatic control operation of PID control loops shall be verified by
                   introducing an error or change into the system and observing the proper
                   corrective system response.
            5.     Automatic control operation of sequences of operation shall be verified by
                   introducing an error or change into the system and observing the proper
                   corrective system response.

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                                         15970 - 5
            6.     Selected time and setpoint schedules shall be verified by changing the
                   schedule and observing the correct response on the controlled outputs.
            7.     Communication with each BAS control panel shall be demonstrated.
            8.     All available and specified system reports and logs shall be demonstrated
                   at the system workstation.
            9.     Correct system start-up and shutdown procedures shall be demonstrated.
            10.    All controllers shall be demonstrated to operate in a standalone mode.
            11.    Workstation Operator commands will be explained and demonstrated.
            12.    All workstation graphics shall be demonstrated to dynamically display and
                   command field points.
            13.    If any point or sequence should fail testing, perform necessary repair
                   action and retest failed point and all interlocked points.

       C.   Project Record Documentation:
            1.      After a successful acceptance demonstration, submit project record
                    drawings of the completed project for final approval.
            2.      After receiving final approval, supply six (or as specified in Division 1)
                    complete project record drawing sets (maximum ANSI "D" size), together
                    with AutoCAD diskettes to the owner.

       D.   Operation and Maintenance Manuals: Submit six (6) copies (or as specified in
            Division 1) of operation and maintenance manuals. Update all drawings and data
            required in the control submittal to a finalized form and add the following
            information:
            1.     An operator's manual which will include detailed instructions for all
                   operations of the system.
            2.     A programmer's manual which will include all information necessary to
                   perform programming functions.
            3.     A language manual which will include a detailed description of the
                   language used and all routines used by the system.
            4.     An operator's reference table listing the addresses of all connected input
                   points and output points. Settings shall be shown where applicable.
            5.     Complete program listing file and parameter listing file for all programs.
            6.     A copy of the warranty.
            7.     Operating and maintenance cautions and instructions.
            8.     Recommended spare parts list.

3.05   WARRANTY

       A.   Warranty:
            1.    The control system shall be warranted to be free from defects in both
                  material and workmanship for a period of one (1) year of normal use and
                  service.
            2.    This warranty shall become effective the date the owner accepts the
                  system.
            3.    The warranty shall include 24 hour per day, 7 day per week emergency
                  problem response and all standard service contract preventative

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                                        15970 - 6
                   maintenance items (i.e. sensor calibration, linkage adjustment, etc.).
            4.     An emergency service number shall be provided to the owner. Response
                   shall be within four (4) hours to the phone call.
            5.     Provide information and costs to the owner for extension of this service
                   after the warranty period expires.

       B.   Upgrades: Include all controller firmware and software updates for the installed
            system version at no additional cost to the system owner during the warranty
            period.

       C.   Tuning: Include seasonal fine-tuning of the PID loop parameters and other
            control parameters to provide an optimized control system to the owner.

PART 4 - SEQUENCE OF OPERATION & POINTS LIST

4.01   GENERAL

       A.   Control:
            1.     All HVAC Systems shall be controlled through the existing BAS and
                   FMCS according to the point list contained in this section of the
                   specifications and shall be stand-alone.
            2.     Additional points or software programming not listed in the point list but
                   which are required to meet the following sequences of operation shall be
                   provided.

       B.   Control Parameters:
            1.     All setpoints and control parameters shall be adjustable both from the
                   desktop workstation and portable workstation primary operator interface
                   software.
            2.     All control loops shall utilize PID control algorithms unless otherwise
                   specified in the sequence of operation.

       C.   Feedback: Provide feedback position as a BAS system analog input on each
            actuator (excluding dedicated controller actuators) that is controlled with
            simulated analog outputs such as tri-state digital output pairs or pulse width
            modulation.

       D.   Alarms:
            1.    All general application controller and network controller communication
                  failures shall be annunciated at the workstation printer as an alarm.
            2.    All specified I/O device alarms shall be annunciated at the system
                  workstation and workstation printer with alarm messages tailored for the
                  alarm by system type and device type (i.e. "Building 1, AHU-1 High
                  Discharge Air Temperature").

       E.   Safeties:
            1.      All HVAC safeties shall be hardwired such that the shutdown will occur

BRENTWOOD MIDDLE SCHOOL
                                        15970 - 7
                   both in Automatic and Hand modes at the BAS system and the starter.
                   Software safeties are not acceptable.

       F.   Relocated Equipment:
            1.     Provide any of the required conduit, wire, tubing, labor, engineering, and
                   startup to relocate and reconnect any controls associated with the relocated
                   equipment.
            2.     Provide any of the required conduit, wire, tubing, labor, engineering, and
                   startup to reconnect any relocated controls.

4.02   CHILLER CONTROL

       A.   General:
            1.    The chiller plant operation is defined by the Owner.
            2.    The chiller shall be provided with one (1) local control panel (LCP)
                  furnished by the chiller manufacturer.            Control of supply water
                  temperature shall be through the chiller LCP.
            3.    The BAS shall enable or disable the chiller LCP controls.
            4.    Chiller restart and reset due to a failure shall be determined by the chiller
                  LCP settings.

       B.   Initial Starting Positions & Sequence:
            1.       Chiller off, all pumps off.
            2.       When the changeover valves are indexed to cooling, (ie.chiller plant is
                     enabled):
                     a.      Both system water pumps shall energize.
                     b.      Both condenser water pumps shall energize.
                     c.      When chilled water and condenser water flow are proven via the
                             flow switches, enable the chiller.

       C.   Start After Power Loss:
            1.     Provide an orderly startup such that the “Initial Starting Positions and
                   Sequence” is initiated, followed by a start of each lag device upon
                   confirmation of positive run operation or failure to start.
            2.     The startup of the lag devices shall follow the “Chiller Staging Control”
                   sequence.

       D.   Equipment Rotations and Relations:
            1.    Rotations:
                  a.     The rotation of the chiller compressors is done through the
                         factory-supplied chiller LCP.



BRENTWOOD MIDDLE SCHOOL
                                        15970 - 8
     E.    Chiller Staging and Setpoint Control:
           1.      The chiller LCP shall stage the multiple compressors to maintain a chilled
                   water supply setpoint of 42 degrees F.

     F.    Failure Modes:
           1.      Chiller Failure: Upon sensing a failure of the chiller through the
                   summary alarm input:
                   a.     Immediately disable the failed chiller and provide a printed alarm
                          at all FMCS workstations.
           2.      System or Condenser Water Pump Failure: Upon sensing the failure of a
                   constant volume pump through a miss-match of the pump commanded
                   output “ON” and current switch status “OFF” for 5 continuous seconds:
                   a.     The failed pump shall be disabled and alarmed at all FMCS
                          workstations.
           3.      Failure of Cooling Tower Fan: Upon sensing a failure of the cooling
                   tower fan to energize through a mismatch of the command versus status:
                   a.     The failure shall be alarmed at all FMCS workstations.
           4.      Failure of System Changeover Valves: Upon sensing a failure of the
                   system changeover valves to index to the commanded position:
                   a.     The failure shall be alarmed at all FMCS workstations.

     G.    Cooling Tower Control:
           1.     Tower Fan Control: The variable frequency drive shall cycle the cooling
                  tower fan to maintain the condenser water supply temperature setpoint
                  (85° F):
           2.     Vibration Shutdown: Upon sensing an activation of the cooling tower
                  vibration switch, the cooling tower shall shut down.

     H.    Existing Mechanical Room Ventilation Fan:
           1.     Fan shall run on low speed during normal conditions(1500 cfm).
           2.     Upon actuation of the refrigerant detector, unit shall run at high
                  speed(2000cfm).

     I.    Safeties: One pair of emergency shut-down switches shall be located outside the
                   main chiller room exit, and a chiller room refrigeration monitor shall be
                   provided for chiller room equipment shut down and energizing the chiller
                   room ventilation sequence.
           1.      Ventilation Only:
                   a.     One switch shall be hardwired to energize the chiller room
                          ventilation exhaust fan to high speed.
                   b.     The refrigerant monitor shall also be hardwired to energize the
                          chiller room ventilation exhaust fan to high speed.
                   c.     The control system shall monitor the switch and the refrigeration

BRENTWOOD MIDDLE SCHOOL
                                       15970 - 9
                           transmitter and provide FMCS alarming.
                   d.      Provide a break glass type switch with normally closed contacts.
                   e.      Provide an engraved tag adjacent to the switch titled
                           “EMERGENCY            ENABLE         OF        CHILLER      ROOM
                           VENTILATION”.
            2.     Shutdown:
                   a.      The other switch shall input into the BAS system for an organized
                           shutdown of the chiller room equipment through the control system
                           in addition to the ventilation shutdown described in the previous
                           paragraph.
                   b.      The alarm shall be annuciated at the FMCS workstation and
                           printer, as well as visual and audible alarms at the chiller room
                           exit.
                   c.      Further chiller room shutdown shall require manual operator input
                           through the FMCS for activation of the automatic shutdown
                           sequence.
                   d.      During equipment shutdown, the chiller shall be disabled
                           according to the shutdown sequence, the system water pumps shall
                           be de-energized, the condenser water pumps shall be de-energized,
                           and the cooling tower control shall be locked out.
                   e.      Provided a new break glass type switch with a normally closed
                           contact.
                   f.      Provide an engraved tag adjacent to the switch titled
                           “EMERGENCY            SHUTDOWN            OF      REFRIGERATION
                           EQUIPMENT”.
            3.     Provide a visual and audible alarm annuciation within the space and
                   outside of the main chiller room exit which shall activate upon activation
                   of any of the emergency switches or a refrigeration gas alarm.
            4.     Provide a refrigeration sensing point on the chiller casing.

4.03   CHEMICAL TREATMENT CONTROL

       A.   Chemical Treatment:
            1.    Insure that existing field wiring interlocks for existing Condenser Water
                  and Chilled Water chemical treatment systems are functioning properly.

       B.   System feed pump:
            1.    Cycle from a pressure sensor in the primary chilled water header in the
                  chiller room.

       C.   System filters:
            1.    Shall operate continuously with integral pumps.
            2.    Backwash shall be automatic from its’ own integral controls.
            3.    Interlock the filter pump operation to operate only when the pumps of the
                  system being served are also on.

                                  END OF SECTION

BRENTWOOD MIDDLE SCHOOL
                                       15970 - 10
                    SECTION 15990 - TEST-ADJUST-BALANCE

PART 1      GENERAL

1.01   RELATION TO DIVISION 1

       A.   Drawings and general provisions of the contract, including General Conditions and
            Division 1 Specification Sections, apply to work of this Section.

       B.   Where contradictions occur between this Section and Division 1, the most stringent
            of the two shall apply. Engineer shall decide which is more stringent.

1.02   QUALITY ASSURANCE

       A.   Qualification: Work shall be done by a firm certified by the National Environmental
            Balancing Bureau (NEBB), or the Associated Air Balance Council (AABC).

       B.   Industry Standards: Comply with one or all of the following:
            1.     HVAC Systems-Testing, Adjusting, Balancing published by Sheetmetal and
                   Air Conditioning Contractors National Association, Inc. (SMACNA).
            2.     Procedural Standards for Testing, Adjusting, Balancing of Environmental
                   Systems published by National Environmental Balancing Bureau, (NEBB).
            3.     Procedural Standards for Certified Testing of Cleanrooms published by
                   National Environmental Balancing Bureau, (NEBB).

1.03   SUBMITTALS

       A.   Test-Adjust-Balance Report:
            1.    Submit to Engineer prior to balancing, a written description of procedures
                  proposed for hydronic balancing.
                   a.     Do not proceed with balancing until authorized by Engineer.

PART 2      PRODUCTS - NOT APPLICABLE

PART 3      EXECUTION

3.01   GENERAL

       A.   Examine the installed work and conditions under which testing is to be done to
            ensure that work has been completed, cleaned and is operable.

       B.   Notify the Contractor in writing of conditions detrimental to the proper completion of
            the test-adjust-balance work.
            1.       Do not proceed with the work until unsatisfactory conditions have been


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                                          15990-1
                   corrected.
       C.   Adjust flows to within 10% of values shown.

       D.   Patch holes in insulation, ductwork and housings, which have been cut or drilled for
            test purposes, in a manner recommended by the original Installer.

       E.   Make all final readings for each system at the same time, and after all adjustments
            have been made.

       F.   Mark equipment settings, including damper control positions, valve indicators, fan
            speed control settings and similar controls and devices, to show final settings at
            completion of test-adjust-balance work.
            1.     Mark with paint or other suitable permanent identification material.

       G.   Check all new thermal overloads.
            1.    Identify improperly protected equipment in report.

       H.   If design flows cannot be obtained within specified limits:
            1.      Measure and record major pressure drops in the system.
            2.      Re-balance after corrections are made.

3.03   HYDRONIC SYSTEMS

       A.   Before any adjustments are made:
            1.     Clean strainers.
            2.     Check pump rotation.
            3.     Adjust pressure reducing valve.

       B.   Using system flow meters or contact pyrometer, adjust the quantity of fluid handled
            by each pump and supplied to each cross-over bridge, bypass, etc., to meet design
            requirements.

3.04   DETAILED REQUIREMENTS

       A.   Measure, adjust and report the following:
            1.    Fans:
                  a.      Inlet and outlet pressure.
                  b.      Air flow.
                  c.      Fan speed.
                  d.      Motor amps and KW.
            2.    Pumps:
                  a.      Water flow.
                  b.      Inlet and outlet pressure.
                  c.      Motor amps and KW.


BRENTWOOD MIDDLE SCHOOL
                                         15990-1
    A.   Provide a general information sheet listing:
         1.     Instruments used.
                a.     Most recent calibration date.
         2.     Method of balancing.
         3.     Altitude correction.
         4.     Manufacturer's data:
                a.     Grille.
                b.     Register.
                c.     Diffuser.

    B.   Provide data sheets for all equipment, including motors and drives, listing:
         1.     Make.
         2.     Size.
         3.     Serial number.
         4.     Rating.
         5.     Etc.

    C.   Include design and final values for all items listed in Detailed Requirements, and
         totals for each system.

                                END OF SECTION




BRENTWOOD MIDDLE SCHOOL
                                       15990-2
                                               DIVISION 16000

                                     ELECTRICAL SPECIFICATION

                                          TABLE OF CONTENTS



SECTION 16010.................................................................................... GENERAL PROVISIONS

SECTION 16100.............................................................. BASIC MATERIALS AND METHODS

SECTION 16102.............................................................NAMEPLATE AND WARNING SIGNS

SECTION 16400.................................................................................... ELECTRICAL SYSTEMS

SECTION 16900............................................................................ ELECTRICAL COMPLETION




Western States Engineering                                                                               TOC - 1
Brentwood Middle School Chiller                               R.J. McNutt & Associates, Inc.: 11111 January, 2012
                                        SECTION 16010
                                     GENERAL PROVISIONS

PART 1 - GENERAL

1.1     CONDITIONS

        A.      All work under this Section shall be governed by project general conditions, along
                with all supplements and amendments thereto, as published.

1.2     CODES AND REGULATIONS

        A.      Comply with all applicable state and local codes, regulations and ordinances, and
                the latest applicable requirements of the National Electrical Code (NEC) of the
                NFPA, as interpreted by the local inspection authority who shall have final
                jurisdiction.

        B.      Comply also with all OSHA requirements and directives.

1.3     EXAMINATION OF PREMISES

        A.      Examine the premises prior to bidding and become fully familiar with existing
                conditions.

1.4     PERMITS

        A.      Secure and pay for all permits, fees, taxes, licenses and inspections in connection
                with the electrical work.

1.5     DRAWINGS AND SPECIFICATIONS

        A.      Drawings are diagrammatic and indicate general arrangement of electrical work.
                Locations are approximate and shall be subject to minor modifications as directed
                by Engineer.

        B.      Contractor shall be responsible for exact fitting of all materials, equipment, etc.,
                in building. All dimensions shall be verified on the job.

        C.      Refer to Mechanical Drawings and Specifications, as part of this set, and be
                responsible for all information contained therein as affects the electrical work.

        D.      Instructions such as "provide..." shall mean "Contractor shall be responsible for
                the furnishing and installing of new..., complete in every respect."

1.6     30-DAY AMMETER TEST REQUIREMENTS

        A.      Electrical contractor shall hire a qualified third party testing agency that
                specializes in associated work such as ERS (Electrical Reliability Services) to

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Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
                perform 30-day ammeter tests in accordance with NEC 220.87. Recordings shall
                be stored electronically and reported to the engineer electronically in a format
                compatible with Microsoft Excel. Electrician shall provide engineer with the
                actual maximum demand values (per NEC 220.87) for each feeder, in addition to
                the electronic data. Ammeter tests shall be performed on all three phases for the
                feeders indicated on the drawings.

        B.      Recordings shall be coordinated with owner to minimize recording during periods
                of when the facility is not operating under “typical” conditions.

        C.      Recordings shall be emailed to engineer (provide one “.xls” file per recording)
                and include a summary indicating all information outlined below for each
                ammeter test called for on the drawings:
                1.     Feeder (equipment fed from/to):
                2.     Size and type of OCPD's at each end of feeder:
                3.     Phase conductor size and insulation type:
                4.     Neutral Conductor size and insulation type:
                5.     Ground Size and insulation type:
                6.     Conduit size and type:
                7.     Number of parallel runs:
                8.     Date Time test began and ended:
                9.     Maximum (per NEC 220.87) - amperage recorded on each phase:

        D.      Meter used shall be designed specifically to make recordings in accordance with
                NEC 220.87 requirements.

        E.      Firm performing study is responsible for interpretation of test results and their
                applicability to NEC 220.87 requirements.

PART 2 - PRODUCTS

2.1     STANDARDS

        A.      All material shall be new and shall be listed by Underwriters Laboratories
                Incorporated (UL listed) for the purpose intended and shall bear the UL label.
                Damaged or defective materials shall be replaced. All materials shall comply with
                the latest NEMA standards.

PART 3 - EXECUTION

3.1     SHOP DRAWINGS

        A.      Furnish electronic (pdf) sets of Shop Drawings to Engineer for the following:
                1.     Distribution Equipment.
                2.     Mechanical Equipment requiring electrical.

        B.      All materials and equipment shall be approved prior to beginning work.


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Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
        C.      Receipt within 30 days after award of contract.

3.2     RECORD DRAWINGS

        A.      Maintain a complete set of Electrical Drawings at the job site with all changes in
                the work marked thereon in a contrasting color.

        B.      Electrical Contractor shall provide Engineer at completion of project a complete
                set of Record drawings showing all changes in work marked there on including all
                system wiring diagrams.

3.3     COORDINATION

        A.      Order the progress of the work so as to conform to the progress of other trades.
                Coordinate all electrical installations and rough-ins as required.

3.4     WORKMANSHIP

        A.      Provide a competent foreman on the job at all times. All work shall be
                accomplished in a manner which is neat, workmanlike, of first quality, and
                compatible with good commercial practices and standards. Provide competent
                workmen who are skilled as electricians.

3.5     INSTALLATION

        A.      Install all equipment and materials in accordance with information as indicated on
                Drawings and in full accord with Manufacturer's recommendations.

3.6     CUTTING AND PATCHING

        A.      Provide all cutting, channeling, chasing, drilling, etc., operations as may be
                required for electrical work. In general, all such operations shall be held to a
                minimum.

        B.      All patching and painting shall be done by Contractor.

3.7     CONSTRUCTION POWER AND LIGHTING

        A.      Provide construction power and lighting for construction as required. Energy
                costs will be paid by Contractor. All temporary facilities shall be properly
                grounded, shall comply with NEC and OSHA requirements, and shall have
                ground fault protection.

3.8     SECONDARY SERVICE - EXISTING

        A.      Power for distribution within the building is underground, available from the
                secondary side of padmount transformer supplied by the local utility company.
                This service is 3 phase, 4 wire, 120/208 volt, 60 Hertz alternating current for
                normal power and lighting requirements.
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Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
3.9     GUARANTEE

        A.      Guarantee all materials, labor, workmanship and successful operation of all
                equipment installed under this contract for a period of one year from date of final
                acceptance. Repair or replace, at no expense to Owner, all defects which may
                arise during this time due to inferior or defective materials, equipment, or
                workmanship.

3.10    SUBSTITUTIONS – NOT ACCEPTABLE

3.11    OUTAGES

        A.      Coordinate all electrical service outages with Owner and General Contractor. Plan
                all work so that duration of outage is kept to an absolute minimum. Provide
                temporary wiring as necessary and as required in order to maintain continuous
                service for Owner's operation where outage must be accomplished during a time
                when power is deemed necessary by Owner, or when outage is to be of an
                extended duration, maximum 6 hours. All outage time and scheduling of same
                shall be as approved by Owner and shall conform to Owner's schedules.

3.12    DELIVERY AND STORAGE OF MATERIALS

        A.      Make provisions for delivery and safe storage of all materials and make the
                required arrangements with other Contractors on the job for the introduction into
                the building of equipment too large to pass through finished openings.

        B.      Where materials are indicated to be furnished by others to Contractor for
                installation, these materials shall be checked and their delivery properly receipted.
                Assume full responsibility for the storage and safe keeping of said materials from
                time of delivery until final acceptance.

        C.      All NEMA 1 rated equipment shall be stored in clean dry location such as trailers
                or enclosed dry areas of buildings, and etc. Such equipment shall include, but not
                be limited to, panelboards, switchboards, dry type transformers, conductors, light
                fixtures, special system equipment, devices, and etc.

3.18    DRAWING/SPECIFICATION CONFLICTS

        A.      In the event of conflict between the Drawings and the Specifications, the more
                stringent requirement will apply. When a conflict occurs notify Engineer in
                writing for clarification.

3.19    REMODEL WORK

        A.      Electrical Contractor shall remove all wiring devices, light fixtures, etc., which
                are indicated to be removed. In general, symbols which are dotted indicate
                devices which are existing, and which are to remain. Symbols which are cross-
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Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                hatched indicate devices which are existing, and which are to be removed.
                Devices which are to be removed may require reworking conduit and wiring in
                order to maintain service to other devices. If removed devices are on walls or
                ceilings which are to remain, blank coverplates are to be installed on outlet boxes.

        B.      Where remodeling interferes with circuits in areas which are otherwise
                undisturbed, circuits shall be reworked as required.

        C.      Existing devices and circuiting which are shown are indicated only for
                informational purposes. Electrical Contractor shall visit the site and shall verify
                conditions as they exist and shall remove, relocate and/or rework any electrical
                equipment or circuits affected (whether indicated or not) due to removal or
                reworking of existing walls, ceilings, etc. Electrical Contractor shall familiarize
                himself with all work to be done by other trades by studying Engineering,
                Structural, Mechanical and Plumbing Drawings.

        D.      Coordinate routing of all conduits with Mechanical and Plumbing Contractors in
                order to avoid conflicts with ducts, pipes, etc.

        E.      All equipment, fixtures, devices, etc., which are removed shall be delivered to
                Owner for disposition. All items which are removed and not wanted by Owner
                and which are not reused shall become the property of Electrical Contractor and
                shall be removed from site.

        F.      The cost of cutting and patching necessary for the installation or removal of
                electrical work shall be included in the Electrical Contract. Coordinate with
                Mechanical Contractor.

        G.      Electrical Contractor shall remove and replace lighting fixtures; rework, relocate
                and replace conduit and wiring and do other work required by the installation of
                new ductwork, piping, etc., above existing ceiling. Coordinate with other
                Contractors and verify the extent of the work.

                                     END OF SECTION 16010




Western States Engineering                                                                        16010 - 5
Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
                                          SECTION 16100
                                  BASIC MATERIALS AND METHODS

PART 1 - GENERAL

1.1     STANDARDS

        A.      All materials shall be new, shall be UL listed for the purpose intended, and shall
                bear the UL label. Damaged or defective materials shall be replaced. All materials
                shall comply with latest NEMA standards.

1.2     SUBSTITUTIONS

1.3     BALANCING

        A.      The complete system shall be load balanced to within 10-15 percent per phase.

1.4     PHASE ROTATION

        A.      Electrical Contractor shall assure and be responsible for proper phase rotation of
                all motors, compressors, and other three phase equipment prior to energizing
                equipment.

        B.      Electrical Contractor shall be responsible and coordinate proper phase rotation
                connections made by the serving utility company prior to energizing main service
                equipment.

PART 2 - PRODUCTS

2.1     SAFETY SWITCHES

        A.      Provide fusible and non-fusible heavy duty type disconnect switches where shown
                and required. Switches shall be horsepower rated, quick make, quick break, by
                same manufacturer as main distribution center.

        B.      Each enclosure shall be NEMA type suitable for surrounding area and condition.
                Consult Mechanical Drawings and Specifications for their requirements.

        C.      Switches shall be equipped with rejection clips for Class "R" current limiting
                fuses.

        D.      Switches shall be same manufacturer as existing main distribution center.

2.2     FUSES

        A.      Provide sizes, classes and types of fuses as indicated for all fused safety switches.
                All fuses 0-600 amps shall have the Class "R" rejection feature. Verify actual load

Western States Engineering                                                                       16100 - 1
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                current of all motors prior to ordering fuses and provide fuses of sizes as
                recommended by Manufacturer. Generally, motor fuses shall be the dual element
                type and shall be set at 110 percent of full load amps, or 125 percent where
                required for heavy duty usage or high ambient temperatures. Fuses shall be the
                power voltage rating to match circuit characteristics in which installed. Fuses
                indicated on Drawings are those of Bussmann Co., equal by Gould Shawmut or
                Littel Fuse.

2.3     SPARE FUSES

        A.      Provide three spare fuses of each size and type installed.

2.4     NAMEPLATES

        A.      Provide 1" X 3" laminated plastic nameplates (1/4" high white letters; black
                background for normal power equipment, red background for emergency power
                equipment) for all switches, panelboards, controllers, etc., in main distribution
                switchboards and sub-distribution panelboards. Nameplates shall be permanently
                attached to equipment with two screws. Provide blank nameplates for all spares.

        B.      Engrave Remote Smoke Duct Units: Provide phenolic engraved 1/8" lettering to
                white core. Lettering shall indicate mechanical unit served. Attach with screws.

        C.      Engrave Manual Fan Shut Down Switches: Provide same phenolic tag as smoke
                duct unit nametags.

        D.      Label all mechanical equipment, safety switches, and starters, etc., with raised
                letter tape. Nameplates and labels shall indicate the general areas and type of
                electrical load served by each circuit.

        E.      Neatly label all Junction box coverplates as to their function. Use a permanent ink
                pen.

2.5     CONDUCTORS

        A.      Provide a complete system of conductors for all raceway systems. All conductors
                shall be rated 600V, and shall be of a manufacturer subscribing to applicable
                IPCEA and NEMA standards and practices. Conductors shall be of sizes and
                types as indicated, and as required by NEC for specific uses. Where quantities of
                conductors in a raceway system are not specifically indicated, provide number as
                required to maintain function, control and number of circuits as indicated. All
                conductors shall be UL listed and approved, and shall conform to the following:
                1.      Minimum wire size shall be #12 AWG copper except for control or signal
                        circuits, which may be #14 AWG copper.
                2.      Unless otherwise indicated, all wiring for branch circuits shall be copper
                        #12 AWG in 1/2" conduit, protected by 20 ampere circuit breakers. See
                        Voltage Drop.


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Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                3.      Voltage Drop: If distance from panel to first outlet is 75 feet or greater (for
                        120V circuits) #10 shall be installed from circuit breaker to every device
                        in circuit.
                4.      Wire sizes #10 AWG copper and smaller shall be solid; #8 AWG copper
                        and larger shall be stranded.

        B.      The following insulation standards shall apply:
                1.     All feeder and service conductors shall be type THWN, XHHW or RHW.
                2.     Other conductors shall be per NEC THHN/THWN copper unless noted
                       otherwise, Article 310.
                3.     Type THWN copper for exterior runs in conduit.

        C.      Motor wiring for power shall be stranded.

        D.      Aluminum conductors shall not be used on this project.

        E.      Conductor Neutral Applications:
                1.    Neutrals: Copper, same size as phase conductor, derating neutrals not
                      allowed.
                2.    Provide separate neutral conductors for each 20 amp single pole breaker.

2.6     CONDUITS

        A.      Conduits shall be provided for all wiring runs as shown and specified. All sizes
                shall be per NEC. Use GRC where required by code, utility company, for
                mechanical protection and as shown. Type IMC may be used in lieu of GRC
                where permitted. Use EMT for all other runs. The use of AC (Armored Cable),
                MC (Metal Clad), or flexible conduit shall not be used for branch circuits or
                feeders (except for final connections to vibrating equipment - 36"). Provide
                approved couplings and connectors for all connections. Final connections to
                motors and other vibrating or rotating equipment shall be made in flexible
                conduit.

        B.      Heavywall, type II, rigid, Schedule 40 PVC – Not allowed on this project

        C.      Use approved type couplings and connectors in all conduit runs and make all
                joints tight. Provide insulated bushings for all terminations in pipe size 1 1/4" and
                larger. Provide all steel set screw couplings and connectors for all other conduits.
                Provide expansion fitting and bonding conductors for all runs which cross
                building expansion joints. Provide waterproof steel compression gland couplings
                and connections for all runs in wet locations such as exposed to weather, buried in
                slabs, etc.

2.7     SUPPORTS AND HANGERS

        A.      Provide supports and hangers as necessary and as required to insure a good and
                substantial installation. Support raceways, fixtures, cabinets, boxes, etc., on
                approved types of trapeze hangers or wall brackets as manufactured by Unistrut or

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Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
                acceptable equal. Provide steel hanger rods securely fastened to or through the
                building structure for all trapezes, etc. Do not suspend from mechanical piping or
                ductwork. Perforated plumber's straps or wire will not be permitted.

        B.      Obtain Architect's approval for the use of powder-driven fasteners and use only in
                locations as he may direct.

        C.      Contractor shall not fasten, attach or hang any material from the roof deck. All
                conduits, junctions boxes, fixtures, devices and equipment shall be hung from the
                structural steel frame and shall be placed with a minimum of 1" clearance below
                the roof deck. Wiring and conduits shall not be placed within the ribs of the roof
                deck. Contractor shall not loosen, remove or cut any roofing system fasteners
                protruding through the roof deck.

2.8     OUTLETS

        A.      Outlets shall be galvanized steel or zinc pressed steel outlet boxes for all locations
                except where otherwise indicated or where cast metal boxes are required by NEC.
                Boxes are to be 4" square or octagonal, 2 1/8" deep. Provide plaster or tile rings
                for all flush outlets installed where wood, drywall tile plaster, etc., types of
                finishes are applied. All outlets for exterior application shall be cast, weatherproof
                type, with gasket and case coverplate. Tile boxes of extra depth may be used for
                interior, dry applications where masonry block or brick walls constitute the
                finished wall surface. In any event, provide outlet boxes of proper type and design
                for the particular fixture or device to be installed. Boxes shall be as manufactured
                by Steel City or acceptable equal.

        B.      Surface mounted boxes shall be cast metal weatherproof, with grounding
                terminal, threaded hubs, and shall be similar and equal to Crouse-Hinds design
                Type FD or FS.

        C.      Pull Boxes: Provide pull boxes in raceway runs as required by NEC and job
                conditions. Install in accessible locations.

2.9     DEVICES AND PLATES

        A.      Switches: Provide the following flush switch devices where indicated and
                required. Devices to be of rating required by NEC for load controlled. All devices
                to be Specification Grade, 120/277V, quiet type. All devices shall have
                screw-type terminals. Provide as shown or acceptable equal.
                1.     Devices:
                       a.      20 amp switches                Leviton-1221-Ivory
                       b.      3-way switches                 Leviton-1223-Ivory
                       c.      4-way switches                 Leviton-1224-Ivory
                       d.      Pilot light                    Leviton-1221-PL
                                                              (120V)-12217P(277V)
                       e.      Weatherproof                   Hubbell-1281 W/1795

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Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
                        f.        Key operated                P&S 20 ACI-L Series

        B.      Thermal overload switches: Provide thermal overload switches for all single
                phase motors which are not furnished with built-in overload protection. Switches
                to be of size and number of poles as required and shall have suitable enclosures.
                Do not install on roof or exposed to weather. Provide Allen Bradley Bul. 600 or
                acceptable equal. Size heater elements in accordance with Manufacturer's
                recommendations.

        C.      Receptacles: Provide the following flush receptacle devices where indicated and
                required. Verify color with Architect prior to installation. All devices to be
                Specification Grade with screw type terminals. Provide as shown or acceptable
                equal.
                1.     Devices:
                       a.      20-3W, grd. duplex-120V                  Leviton-5352-Ivory
                       b.      20A-3W-2P, single-250V                   Leviton-5461-Ivory
                       c.      30A-3W-3P, single-125/250                Leviton-5207-Ivory
                       d.      WP - While in use                        Hubbell WP826MP
                       e.      Ground Fault 20 amp                      Leviton-6899-Ivory
                       f.      High Abuse                              Leviton-5262-SG
                       g.      Safety Duplex                           Hubbell HBL 8300 SGWA

        D.      Equivalent devices: Equivalent wiring devices as manufactured by Slater, Arrow
                Hart, Hubbell, Daniel Woodhead, Eagle, or P & S may be used in lieu of Leviton
                devices indicated.

        E.      Coverplates:
                1.    Finished and unfinished areas provide .040 smooth metal Ivory finished
                      coverplates.

PART 3 - EXECUTION

3.1     CONDUCTORS

        A.      Conductors shall be continuous from outlet to outlet or J-box. Splices shall be
                held to a minimum. Where necessary, splice in readily accessible pull box, J-box,
                or outlet box. The joint insulation value shall equal that of the conductor. Splices
                and connections shall be made in an approved manner.

        B.      Install wiring in the raceway systems only after the conduit run has been
                completed and after such time as conduits have been thoroughly cleaned and
                dried.

        C.      Wire and cable shall be full length factory color coded. Colors for each phase and
                the neutral shall be consistent throughout the system.
                1.     The following color code prevails for all service, feeder and branch
                       circuits:


Western States Engineering                                                                       16100 - 5
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                        Neutral - White for 120V.
                        Ground - Green.
                        Phase A - Black for 120/208V.
                        Phase B - Red for 120/208V.
                        Phase C - Blue for 120/208V.

        D.      Wire and cable shall be the proper size to fit under lug landings in accordance
                with UL listing. Where larger wire and cable is used for voltage drop, etc., and
                will not fit under UL lug listings, Electrical Contractor shall provide proper wire
                and cable size under lugs and either pigtail to larger wire and cable or use power
                tap blocks. Provide insulation value equal to the wire and cable being used.

        E.      High Compression Termination: Provide high compression terminations for
                connecting smaller conductors to larger for voltage drop issues as shown on
                drawings. H-type compression tap connectors shall be for copper combinations,
                sized for correct conductor installation using 15 ton and 12 ton head tools per
                manufacturer UL listed. Manufacturer Thomas and Betts. Compression taps series
                63100 with high compression tool. Provide shop drawings.
                Provide interlocking insulating hard covers and secure with tape sealant per
                manufacturer, UL listed. Manufacturer Thomas and Betts Series HTCX00 (H-Tap
                Insulating Hard Covers), and HSTS25 Series. Provide shop drawings.

        F.      Terminations Exterior
                1.    Terminations shall be silicone filled safety connectors. Connector body
                      shall consist of color-coded shell of non-hygroscopic material, with ribs or
                      wings for easy grip and vibration-absorbing retention fingers. Inside shall
                      be a non-setting, non-conductive, fire-retardant silicone sealant that
                      eliminates the possibility of corrosion and flashover. The connector shall
                      have a plated, conical, square-wire spring to draw in conductors securely
                      as torque is applied.
                2.    Connectors shall be King Technology's Model King-1, 2, 3, 4, 5, 6, and/or
                      9 wire connectors for pressure-type locations or accepted equal.

        G.      Provide cable wraps (nylon tie wraps) around branch circuit bundles and feeder
                bundles in all switchboards, panelboards, and loadcenters.

3.2     CONDUCTOR NEUTRAL APPLICATIONS

        A.      Neutrals: Copper, same size as phase conductor, derating neutrals not allowed.

        B.      Provide separate Neutral conductors for each 15 or 20 amp (120V) single pole
                breaker.




Western States Engineering                                                                       16100 - 6
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
3.3     CONDUITS

        A.      All conduits shall be installed concealed in finished areas. Exposed conduits will
                be permitted only at surface cabinets, in mechanical equipment rooms, and as
                otherwise permitted by Architect.

        B.      Route all conduits either parallel or perpendicular to walls and structural
                members, always avoiding proximity to sources of heat such as flues, hot water
                lines, etc. Runs which are buried below the floor slab or underground may be run
                direct (angular) to fullest practical extent. Locate raceways so as not to endanger
                the strength of any structural members. All runs pertinent to the building
                structural system shall be installed only when and in manner as approved by
                Architect. Actual conduit runs are not necessarily indicated, but are to be installed
                in the most feasible manner compatible with building construction and work of
                other crafts. Outlets shown connected together must be wired on the same circuit.

        C.      All bends to be made by the use of an approved bending tool. Cut all conduits
                square and ream all cuts to remove burrs. Exercise all necessary precautions
                during the construction period to prevent entry or accumulation of moisture, dust,
                concrete, and all foreign matter into the raceway system. Clean and dry all
                raceways prior to pulling conductors.

        D.      Provide one spare 3/4" conduit for each three unused poles in all flush mounted
                panelboards; extend from panelboard to an accessible point beyond the area of
                finished wall or ceiling construction and cap.

        E.      Secure all raceway systems in building structure in a rigid and secure manner
                using approved type fasteners such as "Caddy Clips" or similar type of other
                manufacturer. The use of wire, plumbers straps, etc., will not be permitted.
                Locations and spacing of fasteners shall be as required by NEC.

        F.      Conduit hangers, clamps, light fixtures, supports, nails, etc., shall be fastened to
                joists or beams only. Do not support from bottom of roof decking or mechanical
                ductwork.

        G.      Conduits penetrating through fire-rated walls and floor slabs shall be sealed
                against the spread of fire and products of combustion with smoke-rating of the
                floor or wall through which conduits pass. See Drawings for additional
                requirements.


        H.      Flexible conduit shall be installed on primary and secondary connections to all
                transformers.




Western States Engineering                                                                       16100 - 7
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
3.4     OUTLETS

        A.      Install all outlets in a secure and substantial manner and locate so as to be
                compatible with space, construction and equipment requirements, and with the
                work of other trades. Install all outlets plumb and in accessible locations. Flush
                outlets are to be installed with front of box or ring flush with finished surface. All
                outlets are to be installed flush unless used in conjunction with exposed conduit
                system or unless otherwise indicated. If outlets are not installed plumb, flush, or
                in approved locations, relocate or reset and refinish at no additional cost to
                Owner.

        B.      Switch outlets: Install up 48" to top of box above floor on latch side of door and 4
                inches from centerline of J-box to outside of door frame. Verify door swing prior
                to installation. Use gang boxes for multiple device installation as required.

        C.      Receptacle outlets: Install up 16" (per ANSI Handicap Requirements) to bottom
                of box, mounted vertically above floor in all general locations; install at switch
                height where shown.

        D.      Fire Rated Walls: Maintain separation of J-boxes of horizontal distance of 24
                inches box edge to edge of opposite sides of walls or partitions. Use steel outlet
                boxes or rated J-boxes not exceeding 16 square inches in area, providing the area
                of such opening, do not aggregate more than 100 square inches for any 100 square
                feet of wall or partition area.

        E.      Mount all weatherproof (W.P.) outlets vertically.

        F.      J-boxes shall not be stacked atop or use of multiple extension rings on each other
                to form single J-boxes. Single J-boxes shall be used of proper size per NEC.

3.5     COVERPLATES

        A.      Install oversized or "mistake plates" for any outlet where standard sized plate will
                not cover rough-in opening.

        B.      Provide blank coverplate for all unused outlet boxes.

3.6     FIRE PENETRATIONS

        A.      Provide fire rated stops to maintain fire ratings of walls, ceilings and floors.

        B.      Conduits may penetrate the walls, ceilings, floors or partitions provided fire
                stopping is provided per current International Building Code.


                                     END OF SECTION 16100


Western States Engineering                                                                        16100 - 8
Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012
                                     SECTION 16102
                             NAMEPLATES AND WARNING SIGNS

PART 1 - GENERAL

1.1     DESCRIPTION

        A.      Principal work in this Section.
                1.     The requirements of Section 16010 apply to work of this Section.

        B.      Nameplates and warning signs on all electrical equipment and devices.
                1.   Nameplates and tape labels.
                2.   Wire and cable markers.
                3.   Conduit color-coding.
                4.   Outlet and pullbox identification.

PART 2 - PRODUCTS AND EXECUTION

2.1     NAMEPLATES

        A.      Nameplates and tape labels are required at electrical distribution and control
                equipment switchboards, conductors, wall switches, receptacles and control
                device stations.

        B.      Black plastic phenolic with white cut-in letters. Nameplates shall be fully
                descriptive of title, voltage, phase, as applicable. Description shall be on the first
                line, then voltage, etc., on the second line.

2.02    MATERIALS SUMMARY

        A.      Nameplates: Engraved three-layer laminated plastic, white letters on a black
                background for “Normal”, white letters on a red background for “Emergency” or
                fire alarm device and white letters on green background for “Ground”.

        B.      Tape Labels: Embossed adhesive tape, with 3/16 inch white letters on black
                background for “Normal” and white letters on red background for “Emergency”
                or fire alarm devices.

        C.      The following are acceptable manufacturers and products:
                1.     Wire and Cable Markers: permanently printed split sleeve tube type
                       adhesive backed circumferential: Brady.
                2.     “Kroy” Labels: Kroy tape with 3/8 inch minimum letters, black for
                       “Normal”, red for “Emergency” or fire alarm devices, green for
                       “Ground”.
                3.     “Dymo” tape is prohibited.


Western States Engineering                                                                         16102 - 1
Brentwood Middle School Chiller                          R.J. McNutt & Associates, Inc.: 11111 January, 2012
PART 3 EXECUTION

3.01    EXECUTION SUMMARY

        A.      Install nameplates and tape labels in parallel to equipment lines.
                1.       Attachment
                         a.      Secure nameplates to equipment fronts using screws, rivets.
                         b.      Secure nameplate to inside dead fronts of recessed panelboards in
                                 finished locations.
                2.     Kroy tape
                         Use only for identification of individual wall switches and receptacles,
                         control device stations.
                         a.      Locate tape on front side of the coverplate.
                         b.      On inside of coverplates, use non-washable ink to also identify, use
                                 same as Kroy tape on outside of coverplate.
                3.       Wire Identification
                         a. Provide wire markers on each conductor in panelboard gutters.
                         b.      Identify with branch circuit or feeder number as indicted on
                                 equipment manufacturer’s shop drawings for control wiring.
                4.       Junction Box and Pull Box Identification
                         a.      Use indelible black marker to inscribe circuit, switch numbers and
                                 source panel on the outside of each junction and pullbox cover.
                5.       Conduit Identification
                         a.      Kroy tape shall be used to note panel and circuit information on
                                 conduits at panels and main junction boxes.

3.02    PREPARATION

        A.      De-grease and clean surfaces to receive nameplates and tape labels.

3.03    SCHEDULES

        A.      Engraved Nameplates
                1.    Switchboards:
                      a.      1/8 inch lettering to identify circuit and load s
                              served, including location.
                2.    Individual Circuit Breakers, Enclosed Disconnect Switches, and Motor
                      Starters.

                                    END OF SECTION 16102




Western States Engineering                                                                       16102 - 2
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                                        SECTION 16400
                                      ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1     Furnish and install a complete electrical system as shown on Drawings and
        Specifications.

PART 2 - PRODUCTS

2.1     MECHANICAL EQUIPMENT

        A.      Phase protection: All motors using 3 phase power and all 3 phase air condition
                units shall have protection for phase reversal, loss of phase or phase unbalance of
                10% voltage drop or greater on any one phase. Time Mark (model 2644) or
                Square 'D'.

        B.      Electrical contractor shall verify with mechanical contractor prior to rough-in and
                at shop drawing stage that proper voltages, phases, and connections are provided
                for all mechanical equipment being furnished on this project. Contractor shall
                stop work on any incorrect wiring and notify engineer at once.

PART 3 - EXECUTION

3.1     GROUNDING SYSTEM

        A.      Provide separate grounding conductor in all raceways.

        B.      Provide separate bonding conductor, bare copper, for runs of flexible conduit
                where required by NEC.

        C.      All conductors used for grounding and bonding purposes shall be copper,
                insulated green, only.

3.2     MECHANICAL EQUIPMENT WIRING SYSTEM


        A.      Heating, ventilating and air conditioning equipment: Provide branch circuits,
                feeders, J-boxes, disconnect switches and make all connections to motors and
                controls for heating, ventilating and air conditioning equipment in accordance
                with DIVISION 15000 MECHANICAL SCHEDULE.

        B.      Contractor shall refer to Mechanical Specifications and Plans for all power and
                control wiring.


                                    END OF SECTION 16400


Western States Engineering                                                                      16400 - 1
Brentwood Middle School Chiller                        R.J. McNutt & Associates, Inc.: 11111 January, 2012
                                         SECTION 16900
                                    ELECTRICAL COMPLETION

PART 1 - GENERAL

1.1     GENERAL

        A.      The entire electrical system shall be left in first-class workable operating
                condition and all work shall be complete.

PART 2 - PRODUCTS

2.1     DIRECTORY CARDS

        A.      Provide labels and neatly typed, updated directory cards for all panelboards.
                Directory cards shall indicate the general area and type of electrical load served
                by each circuit.

PART 3 - EXECUTION

3.1     CLEAN UP.

        A.      Remove all materials, scrap, etc., relative to the electrical installation and leave
                the premises in a clean, orderly condition. Any costs to Owner for clean-up of the
                site will be charged against Contractor.

        B.      Clean all electrical equipment and materials of all foreign matter. Clean all light
                fixtures using only methods and materials as recommended by Manufacturer.

3.2     ACCEPTANCE DEMONSTRATION

                1.      Upon completion of the work, at a time to be designated by Engineer,
                        Contractor shall demonstrate to Owner the operation of the entire
                        electrical installation,

3.3     TEMPORARY WIRING.

        A.      Remove all temporary wiring, outlets, etc., complete.

3.4     DRAWINGS.

        A.      Deliver "Record" Drawings to Owner.


                                     END OF SECTION 16900



Western States Engineering                                                                       16900 - 1
Brentwood Middle School Chiller                         R.J. McNutt & Associates, Inc.: 11111 January, 2012

				
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