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Condensing Boiler Installation Project
Project Scope of Work
This project involves the installation of 5 new Aerco Benchmark condensing boilers on the
Ammerman campus in Selden, NY as per the attached drawings and specifications. One boiler
will be installed in each of the following buildings, NFL Building, Southampton Building,
Ammerman Building, Riverhead Building, and Babylon Student Center Building. The boilers
will be installed in existing boiler rooms alongside existing boilers that are to remain in service.
Work covered under this contract
Provide materials and labor to install 5 boilers as per the attached drawings and specifications.
This includes all mechanical work necessary for a complete installation including gas, water and
flue piping, insulation, core drilling, commissioning and start up services.
Work not covered under this contract
Purchase of the boilers – the boilers have been purchased by Suffolk County Community
College. Electrical work – this will be done by the college, connection to the existing building
automation system and installation of the concrete pads upon which the boilers will be placed.
Mandatory pre-bid meeting
There is a mandatory pre bid meeting on November 10th at 10:00 AM at Suffolk County
Community College 533 College Road Selden NY in the NFL Building, Room 11
Bid schedule
Advertised: November 3, 2011
Pre Bid Meeting: November 10th in NFL building room 11 at 10:00 AM
Bids Due: November 17, 2011.
NYS PREVAILING WAGES
Prevailing wages must be paid as per NYS dept of Labor rates –see link to NYS dept of Labor prevailing
wage rates. http://wpp.labor.state.ny.us/wpp/viewPrevailingWageSchedule.do?county=46
BID SECURITY
a. Each bid must be accompanied by the Certified Check of the Bidder or by a Bid Bond duly
executed by the Bidder as principal and having as surety thereon a Surety Company
licensed to do business in the State of New York, subject to the approval of the County of
Suffolk and U.S. Treasury Department rated, and in the amount specified in the ‘Proposal
Form’, made payable to the Suffolk County Treasurer. Upon award of the Contract, the
successful bidder will be required to furnish Performance and Payment Bonds within 2
weeks. Failure to do this may result in forfeiture of bidder’s security to the College as
liquidated damages.
b. Upon request, the Bid Bonds and Certified Checks of all except the two lowest formal
bidders will be returned within one business week after the opening of bids and the
remaining Bid Bonds or Certified Checks of the two lowest formal bidders will be returned
when the contract is executed, or in any event within 45 days after the opening of bids. If
either of the two lowest bidders has submitted a Certified Check, a Bid Bond may be
substituted within 24 hours.
c. The successful Bidder shall provide: a Payment Bond (Labor and Materials Bond) and
Performance Bond for the full amount of the contract price, guaranteeing the full payment
for all labor, materials, and equipment and the full payment of all subcontractors.
American Institute of Architects (AIA) bond forms are preferred.
d. The premium on these bonds shall be paid by the Contractor.
Total Cost for Installation of all five (5) boilers: ____________________
SECTION 15992
CLEANING AND TESTING
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide cleaning and testing for the HVAC Work done in this Project, as
specified herein, and as needed for a complete and proper installation.
1.02 RELATED SECTIONS
A. Basic HVAC Requirements ................................................. Section 15501
B. HVAC Piping ....................................................................... Section 15510
C. HVAC Pumps ...................................................................... Section 15540
1.03 SUBMITTALS
A. Quality Control Submittals
1. Test Reports (Field Tests):
a. Boiler Water Test: Submit test results.
1.04 QUALITY ASSURANCE
A. Regulatory Requirements
1. Perform testing of factory fabricated equipment in accordance with all the
City agencies having jurisdiction.
2. Perform field testing of piping systems in accordance with all the City
agencies having jurisdiction and as specified.
1.05 PROJECT CONDITIONS
A. Protection
During test Work, protect controls, gauges and accessories which are not designed
to withstand test pressures. Do not utilize permanently installed gauges for field
testing of systems.
1.06 SEQUENCING AND SCHEDULING
A. Transmit written notification of proposed date and time of operational tests to the
SCCC and the Custodian at least 5 days in advance of such tests.
B. Perform cleaning and testing Work in the presence of the SCCC.
C. Pressure test piping systems inside buildings, at the roughing-in stage of
installation, before piping is enclosed by construction Work, and at other times as
directed. Perform test operations in sections as required and directed, to progress
the Work in a satisfactory manner and not delay the general construction of the
building. Valve or cap-off sections of piping to be tested, can utilize valves
required to be installed in the permanent piping systems, or temporary valves or
caps as required to perform the Work.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Certified Test Equipment and Instruments
Type and kind as required for the particular system under test. All gauges,
instruments and test devices shall be provided with a certificate of calibration and
calibration curve. The certificate must show date of last calibration. Calibration
must be current.
B. Test Media (air, gas, refrigerant, vacuum, water)
As specified for the particular piping or system under test.
C. Cleaning Agent (chemical solution, steam, water)
As specified for the particular piping, apparatus or system being cleaned.
PART 3 - EXECUTION
3.01 PRELIMINARY WORK
A. Thoroughly clean pipe and tubing prior to installation. During installation,
prevent foreign matter from entering the systems. Prevent if possible and remove
stoppages or obstructions from piping and systems.
B. Thoroughly clean compressed air, control air, refrigerant pipe and similar systems
prior to pressure or vacuum testing.
3.02 PRESSURE TESTS - PIPING
A. Apply tests as specified below. No work shall be covered or concealed before it
is tested. Piping may be concealed after the hydrostatic test and an inspection of
the position, pitch and allowance for expansion has been made.
B. Hydrostatic Tests
Steam piping, condensate return, hot water systems, shall be tested at not less than
80-pounds per square inch hydrostatic pressure maintained for at least 4-hours
during the progress of installation, and all leaks shall be properly eliminated.
Caulking of leaky joints is not permitted. For testing purposes end of piping to be
tested shall be plugged or capped. Convectors, thermostatic vacuum traps,
float-thermostatic traps, pneumatic valves and other equipments or apparatus
which may be damaged by this hydrostatic test shall be excluded from the test.
Water piping shall be tested at 150 percent of design pressure, but never at less
than 80 psi.
3.03 TESTING OF EQUIPMENT, APPARATUS AND APPURTENANCES
A. Hot Water Boilers
Perform hydrostatic test at 30 psig, after installation, with piping connections
shut-off.
END OF SECTION
SECTION 10270
FIRESTOPPING
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide firestopping at all penetrations and juncture joints of fire-rated walls,
floors and ceilings in accordance with the requirements of the New York State
Code
Firestopping shall be provided, but not limited to the following specific locations:
1. Penetrations for the passage of conduit, piping through fire-rated vertical
barriers (walls and partitions), horizontal barriers (floor slabs and
floor/ceiling assemblies), and vertical service shafts.
2. Openings between floor slabs and curtain walls and fire rated walls and
curtain walls.
3. Openings between structurally separate sections of walls or floors.
4. Construction Joints between the top of walls and floor or roof slab and
steel deck assemblies, or, concrete floor or roof slab.
5. Vertical service shafts at each floor level.
6. Expansion joints in walls and floors.
7. Openings and penetrations in fire-rated partitions or walls containing fire
doors.
8. Locations shown specifically on the Drawings.
1.02 REFERENCES
A. References and industry standards listed in this Section are applicable to the
Work. Unless more restrictive criteria or differing requirements are explicitly
stated in the Specifications, or mandated by governing codes or regulations, the
recommendations, suggestions, and requirements described in the referenced
standards shall be deemed mandatory and applicable to the Work.
1. American Society for Testing and Materials (ASTM)
2. Underwriters Laboratories, Inc. (UL)
3. National Fire Protection Association (NFPA)
4. Warnock Hersey
1.03 SUBMITTALS
A. Submit manufacturer's product data including instructions for installing
firestopping.
B. Submit manufacturer's certifications that materials and systems meet or exceed
the specified requirements.
C. Submit shop drawings of each firestopping or smoke seal system to be installed in
the project.
1.04 QUALITY ASSURANCE
A. All firestopping Work shall be performed by a Subcontractor who will be
acceptable to the firestopping manufacturer in the application of its products and
systems.
B. Manufacturer
Minimum of 5 years successful experience in manufacture of firestopping
material.
C. Regulatory Requirements
Conform to U.L. requirements and to requirements of the Building Code of the
City of New York and Materials and Equipment Acceptance (MEA) Standards.
D. Comply with the following for firestopping that is required to be in compliance
with:
1. ASTM E-84 - Surface Burning Characteristics of Building Materials.
2. ASTM E-814 - Fire Tests of Through Penetration Firestops.
3. U.L.-1479 - Fire Tests of Through-penetration Firestops.
4. U.L.- Fire Resistance Directory; Through-Penetration Firestop Systems
(XHEZ), and Fill, Void or Cavity Materials (XHHW).
5. U. L. 723 - Standard Test Method for Surface Burning Characteristics of
Building Materials.
1.05 CONTROLLED INSPECTIONS
A. The SCCC shall retain a professional Architect or Engineer to perform controlled
inspection for all firestopping in accordance with Art. 1.02, Section 01400 of the
Specifications
1.06 SYSTEM DESCRIPTION
A. Technical Requirements
1. Firestopping materials shall be UL Classified as "Fill, Void or Cavity
Material" for use in Through-Penetration Firestop Systems.
2. Firestop Systems shall provide a fire resistance rating at least equal to the
hourly resistance rating of the fire-rated barrier and resist passage of
smoke and other gases.
B. General Considerations
1. Firestop Systems do not re-establish the structural integrity of load bearing
partitions. The Contractor shall consult the SCCC's Representative prior to
penetrating any load bearing assembly.
2. Firestop systems are not intended to support live loads or traffic.
Contractor shall consult the SCCC's Representative if there is reason to
believe these limitations may be violated.
1.07 DEFINITIONS
A. Penetration: Any opening or foreign material passing through or into a fire-rated
barrier.
B. Fire-Rated: Have the ability to withstand the effects of a standard fire exposure
for a specified time period, as determined by qualified testing.
C. Fire-Rated Barrier: A floor, wall, partition or floor-ceiling assembly able to
withstand a standard fire and hose stream test without failure.
D. Fire resistance rating: The ability of a structure to act as a barrier to the spread of
fire and to confine it to the area of origin. Ratings are expressed in hours and
apply to beams, columns, floors, ceilings, roofs, walls and partitions.
E. Firestopping: A means of sealing openings in fire-rated barriers to preserve or
restore the fire resistance rating.
F. Firestop System: A material, or combination of materials, installed to retain the
integrity of fire-rated construction by maintaining an effective barrier against the
spread of flame, smoke or gases through penetrations in fire-rated barriers.
1.08 MANUFACTURER'S CERTIFICATION
A. Manufacturer shall provide written certification stipulating that its products and
systems used in this Project, if installed in accordance with the manufacturer's
recommendations, shall provide the firestopping specified in this Section, as
indicated by its UL rating for that specific installation.
The certification shall not include either or both of the following statements, or
variations thereof:
"Owner or User shall determine suitability of the product or system for its
intended use and assume all risks and liabilities connected therewith".
and,
"Owner or User shall test application of product or system for its specific
use".
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Hilti Construction Chemicals, Inc., Tulsa, OK.
B. The Carborundum Company, Niagara Falls, NY.
C. 3M Fire Protection Products, St. Paul, MN.
D. Bio Fireshield, Inc., Concord, MA
E. Tremco Sealant Division, Tremco LTD, Toronto, Ontario, Canada.
F. Specified Technologies, Inc., Somerville, NJ
G. W. R. Grace & Co., Macungie, PA
H. RectorSeal Corp., Houston, TX
2.02 MATERIALS
A. Grout and sealant systems shall meet or exceed requirements as specified in Part 1
of this Section and shall be acceptable to the SCCC.
B. Firestopping systems shall meet the requirements of ASTM E-814, which include,
but are not limited to, the following:
1. Prevent flame pass-through.
2. Restrict temperature to not exceed 325 degrees F over ambient on side of
assembly opposite flames.
3. Provide a positive smoke seal.
4. Withstand hose stream test.
C. Firestopping materials shall be asbestos-free, emit no toxic or combustible fumes
and be capable of maintaining an effective barrier against flame, smoke, gas, and
water in compliance with requirements of this Section.
D. Firestopping materials/systems shall be flexible to allow for normal movement of
building structure and penetrating items(s) without affecting the adhesion or
integrity of the system.
E. Firestopping materials shall not require hazardous waste disposal of used
containers/packages.
F. On insulated pipe, the fire-rating classification must not require the removal of the
insulation.
G. Firestopping materials shall be free of solvents and shall not experience shrinkage
while curing.
PART 3 - EXECUTION
3.01 EXAMINATION
A. Examine and confirm the compatibility of surfaces to receive firestopping
materials. Verify that surfaces are sound, clean and dry and are ready to receive
the firestopping.
B. Verify that penetration elements are properly located and securely fixed, with the
proper space between the penetration element and surfaces of the opening.
3.02 PREPARATION
A. Protect adjacent surfaces and equipment from damage.
B. Clean surfaces of opening.
3.03 INSTALLATION
A. Install firestopping system in strict accordance with the manufacturer's
instructions to obtain the fire-rating required at the specific location.
B. Provide escutcheons for piping at each side of penetration.
3.04 FIELD QUALITY CONTROL
A. Inspect all installations to ensure that all work meets the requirements specified.
3.05 CLEANING
A. Remove excess materials, droppings, and debris; remove excess materials from
adjacent surfaces.
3.06 PROTECTION
A. Protect firestopping installations from damage until completion of all Project
Work.
END OF SECTION
SECTION 15501
BASIC HEATING AND VENTILATING
PART 1 - GENERAL
1.01 SCOPE OF WORK
A. Provide labor, materials, tools, machinery, equipment, and services necessary to
complete the HVAC Work under this Contract. All systems and equipment shall
be complete in every aspect and all items of material, equipment and labor shall
be provided for a fully operational system and ready for use. Coordinate the work
with the work of the other trades in order to resolve all conflicts without impeding
the job progress.
B. Examine the Architectural, Structural, Plumbing and Electrical Drawings and
other Divisions, and Sections of the Specifications in order to determine the
extent of the Work required to be completed under this Division. Failure to
examine all the Contract Documents for this Project will not relieve this Section
and any other Sections of their responsibilities to perform the Work required for a
complete fully operational and satisfactory installation.
C. The Work includes but is not limited to the following systems, equipment and
services: Condensing Boiler system, note boiler package to be pre purchased by
SCCC.
D. Start-up services shall be included in the bid.
E. All systems, equipment and services specified herein shall be provided complete
and ready for use.
Installations:
1. a. Install five (5) condensing boilers with single fuel (natural gas), trim,
controls, programming, interlocks, piping, sequence of operation,
electrical requirements, safety devices and control panels.
b. Install five (5) circulation pumps unit complete with valving and
all piping and controls.
c. Install five (5) neutralization kits and piping.
d. Install Stainless Steel flue and PVC vent piping.
1.02 ACCESSIBILITY
A. Install access for servicing and maintenance. Coordinate the final location of
concealed equipment and devices requiring access with final location of access
panels and doors. Allow ample space for removal of all parts that require
replacement or servicing.
B. For access doors to valves, dampers and all other HVAC type of items,
accessories and equipment, concealed in walls, furrings and hung ceilings; Refer
to Section 08305. Door shall permit full access to the equipment.
1.03 ROUGHING-IN
A. Verify final locations for rough work with field measurements and with the
requirements of the actual equipment being connected.
1.04 MECHANICAL INSTALLATIONS
A. Coordinate HVAC equipment and materials installation with other building
components.
B. Verify all dimensions by field measurements.
C. Arrange for chases, slots, and openings in other building components to allow for
HVAC installations.
D. Coordinate the installation of required supporting devices and size of sleeves to be
set in poured concrete and other structural components as they are constructed.
E. Sequence, coordinate, and integrate installations of HVAC materials and equipment for
efficient flow of the Work. Give particular attention to large equipment requiring
positioning and entrance prior to the close of the building.
F. Coordinate the cutting and patching of building components to accommodate the
installation of HVAC equipment and materials.
G. Where mounting heights are not detailed or dimensioned, install HVAC services
and overhead equipment to provide the maximum headroom possible.
H. Install HVAC equipment to facilitate maintenance and repair or replacement of
equipment components. As much as practical, connect equipment for ease of
disconnecting and minimum of interference with other installations.
I. Coordinate the installation of HVAC materials and equipment above ceilings with
suspension system, light fixtures, and all other installations and accessories.
J. Provide all rigging, disassembly and reassembly of equipment including the
furnishing and installation of dunnage and all other required and necessary
accessories.
1.05 CUTTING AND PATCHING
A. Refer to Division 16 Sections: ELECTRICAL REQUIREMENTS for
requirements for cutting and patching of electrical equipment, components, and
materials.
B. Do not endanger or damage installed Work through procedures and processes of
cutting and patching.
C. Arrange for repairs required to restore the work, because of damage caused as a
result of HVAC installations.
D. No additional compensation will be authorized for cutting and patching Work that
is necessitated by defective, or non-conforming installations.
E. Perform cutting, fitting, and patching of HVAC equipment and materials required
to:
1. Remove and replace defective work.
2. Remove and replace work not conforming to requirements of the Contract
Documents.
3. Remove samples of installed work as specified for testing.
4. Install equipment and materials in existing structures.
5. Cut, remove and legally dispose of selected HVAC equipment,
components, and materials as indicated, including, but not limited to
removal of HVAC piping, heating units and trim, and other HVAC items
made obsolete by the new work.
6. Protect the structure, furnishings, finishes, and adjacent materials not
indicated or scheduled to be removed.
F. Locate identify, and protect HVAC services passing through remodeling or demolition
area and serving other areas required to be maintained operational. When transit services
must be interrupted, provide temporary services for the affected areas.
1.06 ELECTRICAL CHANGES TO MECHANICAL EQUIPMENT
A. If any changes made in equipment submitted are approved especially as to the
sizes of the motors, notify Electrical.
1.07 DELIVERY, STORAGE, AND HANDLING
A. Deliver products to Project properly identified with names, model numbers, types,
grades, compliance labels, and similar information needed for distinct
identifications; adequately packaged and protected to prevent damage during
shipment, storage, and handling.
1.08 SEQUENCE OF OPERATION
A. Contractor to submit for review and approval sequence of operation for each
building prior to purchase and/or installation of equipment.
END OF SECTION
***
SECTION 15502
HVAC IDENTIFICATION
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide all the mechanical (HVAC) identification work shown on the Drawings,
specified in other Division-15 Sections and needed for a complete and proper
installation. The types of identification devices specified in this Section include
the following:
Painted Identification Materials
Plastic Pipe Markers.
Underground-Type Plastic Line Marker.
Valve Tags.
Valve Schedule Frames.
Plastic Equipment Markers.
Plasticized Tags.
B. Mechanical identification, furnished as part of factory-fabricated equipment is
specified as part of the equipment assembly in their respective sections.
1.02 SUBMITTALS
A. Product Data
Submit manufacturer's product data and installation instructions for each
identification material and device required.
B. Samples
Submit samples of each color, lettering style and other graphic representation
required for each identification material or system.
C. Schedules
Submit valve schedule for each piping system, typewritten and reproduced on 8-
1/2" x 11" bond paper. Include valve number, piping system, system abbreviation
(as shown on tag), location of valve (room or space), and variations for
identification (if any). Mark valves which are intended for emergency shut-off
and similar special uses by special "flags" in margin of schedule. In addition to
mounted copies, furnish extra copies for the maintenance manuals.
D. Maintenance Data
Include product data and schedules in the maintenance manual in accordance with
requirements of Division 1.
1.03 QUALITY ASSURANCE
A. Manufacturer's Qualifications
Firms regularly engaged in manufacturer of identification devices of types and
sizes required, whose products have been in satisfactory use in similar service for
not less than 5 years.
B. Codes and Standards
1. ANSI Standards: Comply with ANSI A13.1 for lettering size, length of
color field, colors, and viewing angles.
PART 2 - PRODUCTS
2.01 MATERIALS AND MANUFACTURERS
A. Provide manufacturer's standard products of categories and types required for
each application as referenced in other Division-15 Sections, shown on the
Drawings and/or Schedules. Where more than single type is specified for
application, selection is the Authority's option, but provide single selection for
each product category.
B. Painted Identification Materials:
1. Stencils: fiberboard stencils, prepared for required applications with letter
sizes generally complying with recommendations of ANSI A13.1.
a. Stencil Paint: exterior type stenciling enamel except as otherwise
indicated on the Drawings; either brushing grade or pressurized
spray-can form and grade.
b. Identification Paint: enamel of colors indicated or, if not otherwise
indicated for piping systems, comply with ANSI A13.1 for colors
or as selected by the Project Architect.
C. Plastic Pipe Markers:
1. Snap-On Type: Pre-printed, semi-rigid snap-on, color-coded pipe markers,
complying with ANSI A13.1 or as selected by the Project Architect.
2. Provide 1" thick molded fiberglass insulation with jacket for the plastic
pipe marker to be installed on uninsulated pipes subjected to fluid
temperatures of 125o F or greater. Cut length to extend 2" beyond each
end of plastic pipe marker.
3. Small Pipes: For external diameters less than 6" (including insulation if
any), provide full-band pipe markers, extending 360o around pipe,
fastened by snap-on application of pre-tensioned semi-rigid plastic pipe
marker.
4. Large Pipes: For external diameters of 6" and larger (including insulation
if any), provide either full-band or strip-type pipe markers, but not
narrower than 3 times letter height, fastened by strapped-to-pipe (or
insulation) application of semi-rigid type, with stainless steel bands.
5. Lettering: Pre-printed nomenclature which best describes piping system in
each instance, as shown on the Drawings or as selected by the Project
Architect or Engineer in cases of variance with name shown or specified.
a. Arrows: Print each pipe marker with arrows indicating direction of
flow, either integrally with piping system service lettering (to
accommodate both directions), or as separate unit of plastic.
D. Valve Tags
1. Brass Valve Tags: 19-gage polished brass valve tags with stamp-engraved
piping system abbreviation in 1/4" high letters and sequenced valve
numbers 1/2" high, and with 5/32" hole for fastener.
a. Provide 2" sq tags
b. Numbers and letters shall be block type, indented and filled with
durable black compound.
2. Valve Tag Fasteners: solid brass chain (wire link or beaded type), or solid
brass S-hooks of the size required for proper attachment of tags to valves,
and manufactured specifically for that purpose.
F. Valve Schedule Frames
For each page of valve schedule, provide safety glass in wood or aluminum self-
closing frame, with screws for mounting on masonry walls.
G. Plastic Equipment Markers:
1. Laminated plastic, color coded equipment markers. Conform to the
following color code if not specified otherwise:
Yellow: Heating equipment and components.
Blue: Equipment and components that do not meet any of the above criteria.
2. Nomenclature: Include the following matching terminology on schedules
and Drawings as closely as possible:
Name and plan number.
Equipment service.
Design capacity.
Other design parameters such as pressure drop, entering and leaving conditions,
rpm, and all other items and accessories.
3. Size: approximate 2-1/2" x 4" markers for control devices, dampers and valves;
and 4-1/2" x 6" for equipment.
H. Plasticized Tags
Pre-printed or partially pre-printed accident-prevention tags, of plasticized card
stock with matt finish suitable for writing, approximately 3-1/4" x 5-5/8", with
brass grommets and wire fasteners, and with appropriate pre-printed wording
including large-size primary wording (as examples: DANGER, CAUTION, DO
NOT OPERATE).
I. Lettering and Graphics:
1. Coordinate names, abbreviations and other designations used in the
identification work with corresponding designations shown on the
Drawings or Schedules, or specified. Provide numbers, lettering and
wording as indicated or, if not otherwise indicated, as recommended by
manufacturers or as required for proper identification and
operation/maintenance of systems and equipment.
2. Multiple System: Where multiple systems of same generic name are
shown on the Drawings or Schedules and specified, provide identification
which indicates individual system number as well as service (as examples:
Boiler No. 2, Air Supply No. 1).
J. Manufacturers
Subject to compliance with requirements, manufacturers offering identification
materials which may be incorporated in the work include, but are not limited to
the following:
Allen Systems, Inc.
Brady (W.H.) Co.; Signmark Div.
Industrial Safety Supply Co., Inc.
Seton Name Plate Corp.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Coordination
Where identification is to be applied to surfaces which require insulation, painting
or other covering or finish, including valve tags in finished mechanical spaces,
install identification after completion of covering and painting. Install
identification prior to installation of acoustical ceilings and similar removable
concealment.
B. Piping System Identification:
Install pipe markers and color bands and include arrows to show direction
wherever piping is exposed to view in occupied spaces, machine rooms,
accessible maintenance spaces (shafts, tunnels, plenums) and exterior non-
concealed locations.
1. Near each valve and control device.
2. Near each branch, excluding short take-offs for terminal units; mark each
pipe at branch, where there could be question of flow pattern.
3. Near locations where pipes pass through walls or 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,
except reduce spacing to 25' in congested areas of piping and equipment.
6. On piping above removable acoustical ceilings except omit intermediately
spaced markers.
C. Valve Identification:
1. Provide valve tag on every valve, cock and control device in each piping system;
exclude check valves, valves within factory-fabricated equipment units, and shut-
off valves at HVAC terminal devices and similar rough-in connections of units.
List each tagged valve in valve schedule for each piping system.
a. Tagging Schedule: Comply with requirements of "Valve Tagging
Schedule" at end of the Section.
2. Mount valve schedule on frames located in machine rooms where
indicated or, if not otherwise indicated, where directed by the Authority.
3. Where more than one major machine room is shown on the Project, mount
valve schedule in each major machine room, and repeat only main valves
which are to be operated in conjunction with operations of more than
single machine room.
D. Mechanical Equipment Identification:
1. Install plastic equipment marker on or near each major item of mechanical
equipment and each operational device, as specified herein if not
otherwise specified for each item or device in their respective sections.
Provide signs for the following general categories of equipment and
operational devices
a. Main control and operating valves, including safety devices.
b. Meters, gauges, thermometers and similar units.
c. Fuel-burning units including boilers, furnaces and heaters units.
d. Pumps, compressors, chillers, condenser and similar motor-driven
units.
e. Converters, Heat exchangers, coils, evaporators, heat recovery
units and similar equipment.
f. Fans, blowers, primary balancing dampers, mixing boxes and
VAV terminals.
g. Packaged HVAC central-station, zone-type units, heat pumps, air
handling units, heating and ventilating units.
h. Tanks and pressure vessels.
i. Strainers, filters, humidifiers, water treatment systems,
thermostatic traps and similar equipment.
2. Lettering Size: Minimum 1/4" high lettering for name of unit where
viewing distance is less than 2', 1/2" high for distances up to 6', and
proportionally larger lettering for greater distances. Provide secondary
lettering 2/3 to 3/4 of size of principal lettering.
3. Text of Signs: In addition to name of identified unit, provide lettering to
distinguish between multiple units, inform operator of operational
requirements, indicate safety and emergency precautions, and warn of
hazards and improper operations.
4. Optional Use of Plasticized Tags: At the Authority's option, where
equipment to be identified is concealed above acoustical ceiling or similar
concealment, plasticized tags shall be installed within concealed space to
reduce amount of text in exposed sign (outside concealment).
a. Operational valves, dampers and similar minor equipment items
located in non-occupied spaces (including machine rooms) shall be
identified by plasticized tags.
3.02 ADJUSTING AND CLEANING
A. Adjusting
Relocate any mechanical identification device which is visually blocked.
B. Cleaning
Clean face of identification devices, and glass frames of all charts.
3.03 VALVE TAGGING SCHEDULES
A. Numbers: Arrange the numbering of valves in the following manner:
1. In Basement, Cellar, or Pipe Space below First Floor - No. 1 to No. 999
B. In no case shall a number applying to one story, be assigned to a valve located in
another story.
C. For other information, refer to the Drawings.
END OF SECTION
15510
HVAC SECTION PIPING
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide pipes, pipe fittings, pipe specialties, and pipe supports as specified herein,
as shown on the Drawings, and as needed for a complete and proper installation.
1.02 DESIGN AND PERFORMANCE REQUIREMENTS
A. Heating Hot Water Piping
Operating Pressure 125 psig
Operating Temperature 150 - 250o F
Design Code (ANSI) B31.9
1.03 RELATED SECTIONS
A. HVAC Identification ........................................................ Section 15502
B. Cleaning and Testing ....................................................... Section 15992
1.04 SUBMITTALS
A. Product Data
Submit manufacturer's technical data, figure number, installation instructions, and
dimension drawings. Submit schedule showing pipe or tube weight, fitting and
joint type for each piping system; size, location and feature for each piping
specialty, expansion compensation, hanger and support. Include pressure drop
curve or chart for each type and size of pipeline strainer. Include maximum
allowable temperature and pressure rating, and maximum expansion
compensation.
B. Welding Certifications
Submit reports as required for piping work.
D. Test Data
Submit all field and shop test data.
E. Maintenance Data
Submit maintenance data and parts lists. Include this data, product data, and
certifications in the maintenance manual in accordance with requirements of
Division 1.
1.05 QUALITY ASSURANCE
A. Manufacturers
Firms whose products have been in satisfactory use in similar service for not less
than 5 years.
B. Codes and Standards
1. Welding: Qualify welding procedures, welders and operators in
accordance with ASME B31.1, or ASME B31.9, as applicable, for shop
and project site welding of piping work.
2. Certify welding of piping work using Standard Procedure Specifications
by, and welders tested under supervision of, National Certified Pipe
Welding Bureau (NCPWB).
3. FCI Compliance: Test and rate "Y" type strainers in accordance with FCI 73-1:
Pressure Rating Standard for "Y" Type Strainers. Test and rate other type
strainers in accordance with FCI 78-1: Pressure Rating Standard for Pipeline
Strainers Other than "Y" Type.
4. EJMA Compliance: Construct expansion compensation products in
accordance with standards of the Expansion Joint Manufacturer's
Association(EJMA).
5. MSS Compliance: Comply with MSS SP-39, MSS SP-40, MSS SP-58,
MSS SP-69 and MSS SP-89.
7. Comply with ANSI B31.1A, ASME Code for pressure Piping, and
ASHRAE Equipment Guide.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Provide factory-applied plastic end-caps on each length of pipe and tube.
Maintain end-caps through shipping, storage and handling as required to prevent
pipe-end damage and eliminate dirt and moisture from inside of pipe and tube. In
addition, pack refrigerant tubing with nitrogen or other inert gas.
B. Protect flanges, fittings, and all other items and accessories from moisture and dirt
by packaging with durable, waterproof wrapping.
C. Deliver hangers, supports, stands and all other items and accessories with one coat
of rust resistant primer.
PART 2 - PRODUCTS
2.01 PIPES
A. Pipe used shall be free from scale or rust. Each length of pipe shall be properly
marked at the mill for proper identification with name or symbol of manufacturer.
Dimensions for steel pipe shall be in accordance with the ANSI B36.10.
Dimensions for red brass pipe shall be in accordance with ASTM B251.
B. Steel Pipe
1. Black; Standard Weight: Schedule 40 or Extra Heavy Weight: Schedule
80; ASTM A106 Grade B, Seamless.
2. Steel pipe shall be manufactured by:
U.S. Steel Co.
Sawhill Tubular Co.
North Star Steel Co.
Sharon Tube Co.
Koppel Steel Corp.
C. Copper Tubing
1. Hard Temper, Water Tube Type L; Refrigerant Tube Dry Sealed, Hard annealed;
ASTM B88.
2. Copper tubing and fitting shall be manufactured by:
Mueller Industries
Phelps-Dodge Copper Products Corp.
Revere Copper and Brass Inc.
Grinnell Corp.
Victaulic Co. of America
NIBCO Co.
2.02 FITTINGS
A. Steel
1. Steel Fittings, except couplings and unions, 2-1/2" and less: Threaded
pattern, standard weight, black cast iron, suitable for a working steam
pressure of 125 psi, except as otherwise specified below. Threaded
fittings shall conform to Federal Specification WW-P-501e, Type A, Class
I.
2. Flanges, Welding Neck Type, Same Pressure Rating as Adjoining Pipe:
ANSI B16.5. Welding flanges shall be socket type.
3. Weld Fittings, Carbon Steel: Butt Welding Type: ANSI B16.9. Socket
Welding Type: ANSI B16.11. Branchlets, Weldolets, or Bonney
Thredolets and Sockolets shall be considered as weld fittings.
4. Malleable Iron, Threaded: ANSI/ASME B16.3 for 300 lb Class.
6. Cast Iron, Threaded: ANSI/ASME B16.4. Flanged Fittings and Threaded
Flanges: ANSI B16.1 for standard weight pipe and B16.b for extra heavy
weight pipe.
7. Steel pipe fittings shall be manufactured by:
Grinnell Corp.
Crane Co.
Stockham Valves & Fittings
Tube-Line
Victaulic Co. of America
B. Unions 3" Size and Under: Steel: malleable iron, 300 lb class, with brass to iron
or brass to brass seats and bronze to bronze, bronze to iron, or brass to iron
ground joint, except as otherwise specified. The pressure rating shall be indicated
on the union.
1. Union shall be manufactured by:
E.M. Dart Co.
S.G. Flagg Co.
Grinnell Co.
Stockham Valves & Fittings
NIBCO Co.
D. Fittings for Type "L" copper tubing shall be wrought copper solder joint
fittings suitable for brazing and shall be in accordance with ANSI B16.22-
1973. Type "L" fittings shall have a minimum working water pressure of
150 p.s.i.
a. Flux for brazing shall be equal to "Handy Flux" and shall
comply with Navy Dept. Spec. 51F 4a.
b. The silver brazing alloy for brazed joints shall be similar to
Handy & Harmon Sil-Fos brazing alloy having a silver
content of not less than 15% and a flow point of 1300o
Fahrenheit.
2. Type "L" fittings shall manufactured by:
Nibco Inc.
Stanley G. Flagg & Co.
E. Couplings: Same material and pressure rating as adjoining pipe, conforming to
standards for fittings in such pipe. Use taper tapped threaded type in screwed pipe
systems operating in excess of 15 psig.
F. Nipples: same material and strength as adjoining pipe, except nipples having a
length of less than 1" between threads shall be extra heavy. Manufacturer: Allied
Piping Products, Babcock & Wilcox, Crane Co., and Tube Turns.
2.03 GALVANIZING
A. Galvanizing Pipe and Fittings: hot dip process, inside and out in accordance with
ASTM or other nationally recognized specifications to which pipe and fittings
conform. Galvanize before threading.
2.05 JOINING AND SEALANT MATERIALS
A. Solder: solid wire type conforming to type 2: 95-5
B. Gasket Material
1. For Use with Cold Water or Chilled Water: 1/16" thick rubber.
2. For Use with Hot Water, Air: Waterproofed non-asbestos mineral, or
ceramic fiber, or spirally wound stainless steel V-shaped strip with non-
asbestos filler and an outer steel compression ring, designed for the
temperatures and pressures of the piping systems.
C. Bolts and Nuts: heat treated carbon steel, ASTM A183 minimum tensile 110,000
psi
2.06 PIPING SPECIALTIES
A. Provide factory-fabricated piping specialties recommended by manufacturer for
use in service indicated. Provide piping specialties of types and pressure ratings
indicated on the Drawings for each service, or if not indicated, provide proper
selection as determined by the SCCC to comply with installation requirements.
Provide connections which properly mate with pipe, tube, and equipment
connections.
B. Pipe Escutcheons
1. Provide pipe escutcheons as specified herein with inside diameter closely
fitting pipe outside diameter or outside of pipe insulation where pipe is
insulated. Select outside diameter of escutcheon to completely cover pipe
penetration hole in floors, walls, or ceilings; and pipe sleeve extension, if
any. Provide pipe escutcheons with nickel or chrome finish for occupied
areas, prime paint finish for unoccupied areas.
a. Pipe Escutcheons for Moist Areas: For waterproof floors and areas,
where water and condensation can be expected to accumulate,
provide cast brass or sheet brass escutcheons, solid or split hinged.
b. Pipe Escutcheons for Dry Areas: Provide sheet steel escutcheons,
solid or split hinged.
2. Manufacturers: Subject to compliance with requirements, manufacturers
offering pipe escutcheons which may be incorporated in the work include,
but are not limited to the following:
Chicago Specialty Mfg. Co.
Producers Specialty & Mfg. Corp.
Sanitary-Dash Mfg. Co.
C. Strainers: Low Pressure Y-Type Pipeline Strainers:
1. Provide strainers full line size of connecting piping. Select strainers for
125 psi working pressure with type 304 stainless steel screens with 3/64"
perforations @ 233 per sq. in.
a. Threaded Ends, 2-1/2" and Smaller: Cast-iron body, screwed
screen retainer with centered blow down fitted with pipe plug.
2. Manufacturers: Subject to compliance with requirements, manufacturers
offering low pressure Y-type strainers which may be incorporated in the
work include, but are not limited to the following:
Armstrong Machine Works.
Hoffman Specialty ITT; Fluid Handling Div.
Metraflex Co.
Conbraco Industries, Inc.
D. Dielectric Unions:
1. Provide products which effectively isolate ferrous from non-ferrous piping
(electrical conductance), prevent galvanic action, and stop corrosion.
2. Manufacturers: Subject to compliance with requirements, manufacturers
offering dielectric unions which may be incorporated in the work include,
but are not limited to, the following:
B&K Industries, Inc.
Capitol Mfg. Co.; Div. of Harsco Corp.
Eclipse, Inc.
Epco Sales, Inc.
Perfection Corp.
Rockford-Eclipse Div.
E. Pipe Sleeves: Provide pipe sleeves of one of the following:
1. Sheet-Metal: Fabricate from galvanized sheet metal; round tube closed
with snaplock joint, welded spiral seams, or welded longitudinal joint.
Fabricate from the following gauges: 3" and smaller, 20 gage; 4" to 6", 16
gage; over 6", 14 gage.
2. Steel-Pipe: Fabricate from Schedule 40 galvanized steel pipe; remove
burrs.
3. Plastic-Pipe: Fabricate from Schedule 80 PVC plastic pipe; remove burrs.
F. Mechanical Seals
1. Modular mechanical type consisting of interlocking synthetic rubber links
shaped to continuously fill annular space between pipe and sleeve,
connected with bolts and pressure plates which cause rubber sealing
elements to expand when tightened, providing watertight seal and
electrical insulation
2. Manufacturers: Subject to compliance with requirements, manufacturers
offering mechanical sleeve seals which may be incorporated in the work
include, but are not limited to the following
Thunderline Corp.; Link Seal Type "C"
Metraflex Co; Metra Seal.
G. Sleeve Seals: Provide sleeve seals for sleeves located in foundation walls below
grade, or in exterior walls, of one of the following:
1. Lead and Oakum: caulked between sleeve and pipe.
2. Mechanical Sleeve Seals: installed between sleeve and pipe.
2.07 PIPE ALIGNMENT GUIDES
A. Provide pipe alignment guides on both sides of loops, elsewhere as required and
as indicated on the Drawings. Construct with 4 fingers spider traveling inside
guiding sleeve with provision for anchoring sleeve to structural steel.
B. Manufacturer: subject to compliance with requirements, provide pipe alignment
guides of one of the following:
Hyspan Precision Products, Inc.
Metraflex Co.
Grinnell
2.08 HANGERS AND SUPPORTS
A. General
1. Insulated Piping: Each pipe hanger supporting insulated piping shall be
provided with a pipe covering protection shield.
2. Hangers for pipes smaller than 5" shall be forged or malleable iron ring
type or steel clevis type supported by a solid steel rod.
3. Hangers for pipes 5" and larger shall be formed of a section of steel angle
having 3/4" diameter steel rod, threaded at both ends, run through a drilled
hole near each end of the angle. Secure two nuts at the bottom end of the
rod. Refer to Standard Details Drawings.
4. Sockets used on upper ends of rods at beam clamps and on lower ends of
rods for single hangers shall be malleable or forged steel with standard
machine threads.
5. Supports for vertical piping shall be double bolt riser clamps, Grinnell Fig.
261 with each end having equal bearing on the building structure located
as hereinafter specified. If piping is insulated, riser clamp shall be placed
under insulation.
6. Trapeze type hangers shall be made of 2"x2"x1/4" carbon steel angle iron
with drilled holes and 1/2" hangers rods.
B. Pipe hangers shall be manufactured by:
Fee & Mason Mfg. Co.
Carpenter & Patterson, Inc.
F.&S. Central Mfg. Co.
Grabler Mfg. Co.
Grinnell Corp.
2.11 INSERTS AND EXPANSION BOLTS
A. Inserts for use in new conventional reinforced poured concrete slabs shall be as
follows: Carpenter & Paterson Inc. No. 650; Grinnell No. 281; C. H. Leibfried
Mfg. Corp. No. 100.
B. Inserts for new composite metal decks shall be Phillips Drill Co.'s "Red Head"
steel deck insert.
C. Expansion bolts for use in existing reinforced concrete slabs shall be Phillips Drill
Co.'s "Self Drilling Concrete Anchors" and Hilti, Inc.'s "Kwik Bolts".
2.12 SADDLES AND SHIELDS
A. Except as otherwise indicated on the Drawings, provide saddles or shields under
piping hangers and supports, factory-fabricated, for all insulated piping. Size
saddles and shields for exact fit to mate with pipe insulation.
1. Protection Saddles: MSS Type 39; fill interior voids with segments of
insulation matching adjoining insulation.
2. Protection Shields: MSS Type 40; of length recommended by the
manufacturer to prevent crushing of insulation.
3. Thermal Hanger Shields: Constructed of 360o insert of high density, 100
psi, waterproofed calcium silicate, encased in 360o sheet metal shield.
Provide assembly of same thickness as adjoining insulation.
B. Manufacturers: subject to compliance with requirements, manufacturers offering
thermal hanger shields which may be incorporated in the work include, but are not
limited to the following:
Elcen Metal Products Co.
Pipe Shields, Inc.
PART 3 - EXECUTION
3.01 INSPECTION
A. Perform flexibility analysis of the final piping configuration as required by ANSI
B31.1. Insure that the resultant stresses are within the limits for the respective
pipe materials and that the resultant forces and moments imposed on the anchors
and guides do not exceed the Joist and Truss Manufacturers stated limitations.
B. Upon completion of the flexibility analysis, notify the SCCC of additional loops,
anchors or guides required to adequately protect the piping system.
C. Examine areas and conditions under which all products are to be installed. Do not
proceed with work until unsatisfactory conditions have been corrected in manner
acceptable to the SCCC.
3.02 PREPARATION
A. Proceed with installation of hangers, supports and anchors only after required
building structural work has been completed. Correct inadequacies including (but
not limited to) proper placement of inserts, anchors and other building structural
attachments.
B. Prior to installation of hangers, supports, anchors and associated work, Contractor
shall meet at project site with testing agency representatives (if any), other trades
requiring coordination, the Project Architect, Project Engineer and the SCCC
Representative for purpose of reviewing material selections and procedures.
3.03 PIPE INSTALLATION
A. Install pipes in accordance with recognized industry practices which will achieve
permanently-leakproof piping systems, capable of performing each indicated
service without piping failure. Align piping accurately at connections, within
1/16" misalignment tolerance. Comply with ANSI B31 Code for Pressure Piping.
B. Locate piping runs, except as otherwise indicated, vertically and horizontally
(pitched to drain) and avoid diagonal runs wherever possible. Orient horizontal
runs parallel with walls and column lines. Locate runs as shown or described by
diagrams, details and notations. Run piping in shortest route which does not
obstruct usable space or block access for servicing building and its equipment.
Hold piping close to walls, overhead construction, columns and other structural
and permanent-enclosure elements of building; limit clearance to 1/2" where
furring is shown for enclosure or concealment of piping, but allow for insulation
thickness, if any. Where possible, locate insulated piping for 1" clearance outside
insulation. Wherever possible in finished and occupied spaces, conceal piping
from view, by locating in column enclosures, in hollow wall construction or
above suspended ceilings; do not encase horizontal runs in solid partitions, except
as indicated on the Drawings.
C. Do not run piping through transformer vaults and other electrical or electronic
equipment spaces and enclosures unless unavoidable. Install drip pan under
piping that must be run through electrical spaces.
D. In the outlet from each cooling coil condensate drain pan, provide a tee with a
brass plug at one end to facilitate cleaning of drain.
E. Riser Casings: unless otherwise indicated on the Drawings, all exposed risers,
including the drop risers, shall be enclosed in casings extending from floor to a
height of 7'-6" above floor. Riser casings shall be installed after the pipe
insulation work is completed, inspected and approved. Casings shall be made of
24-gage galvanized sheet steel, with the upper end wired with 1/8" half hard wire.
Each casing shall be fastened to the wall at the upper end with a metal band and
round head screws. Seams shall be located at the rear of the casing.
F. Casing for pipe at or near floors: where pipes at or near floors are indicated on the
Drawings to be encased, pipes shall be supported, insulated, and then enclosed in a casing
of No. 20-gage galvanized sheet steel.
3.04 INSTALLATION OF PIPE SYSTEM JOINTS
A. Provide joint of type indicated in each piping system.
B. Thread pipe in accordance with ANSI B2.1; cut threads full and clean using sharp
dies. Ream threaded ends to remove burrs and restore full inside diameter.
Apply pipe joint compound, or pipe joint tape (Teflon) where recommended by
pipe/fitting manufacturer, on male threads at each joint and tighten joint to leave
not more than three threads exposed.
C. Weld pipe joints in accordance with recognized industry practice and as follows:
1. Weld pipe joints only when ambient temperature is above 0 o F where
possible.
2. Bevel pipe ends at a 37.5o angle where possible, smooth rough cuts, and
clean to remove slag, metal particles and dirt.
3. Use pipe clamps or tack-weld joints with 1" long welds, 4 welds for pipe
sizes to 10", 8 welds for pipe sizes 12" to 20".
4. Build up welds with stringer-bead pass, followed by hot pass, followed by
cover or filler pass. Eliminate valleys at center and edges of each weld.
Weld by procedures which will ensure elimination of unsound or unfused
metal, cracks, oxidation, blow-holes and non-metallic inclusions.
5. Do not weld-out piping system imperfections by tack-welding procedures;
refabricate to comply with requirements.
D. Brazed Joints: Joints in refrigerant piping shall be brazed. The outside of the
copper tube and the inside of the fitting where solder will be applied, shall be
cleaned and burnished with fine crocus cloth until all dirt and oxide is removed.
A light coat of non-corrosive brazing flux shall be applied to both pipe and
fittings (Acid flux shall not be used). Joint shall be uniformly heated to proper
brazing temperature and the brazing material shall be fed to the joint until a
uniform line of brazing material appears around the pipe at the end of the fitting.
Brazing shall be done only by mechanics that are qualified for brazing refrigerant
piping.
E. Fittings for copper tubing for refrigerant use shall be wrought copper with solder
type ends. Forged brass fittings are also acceptable for this purpose. Fittings
shall be suitable for working water pressure up to 250 psi. The use of cast brass
fittings for this service will not be approved
F. Solder copper tube-and-fitting joints in accordance with recognized industry
practice. Cut tube ends squarely, ream to full inside diameter, and clean outside
of tube ends and inside of fittings. Apply solder flux to joint areas of both tubes
and fittings. Insert tube full depth into fitting, and solder in manner which will
draw solder full depth and circumference of joint. Wipe excess solder from joint
before it hardens.
G. Offsets in piping shall be accomplished by means of standard fittings; pipe bends
shall not be used for this purpose unless shown on the Drawings or unless
permission is obtained from the SCCC to use pipe bends.
H. Flanged Joints: match flanges within piping system, and at connections with
valves and equipment. Clean flange faces and install gaskets. Tighten bolts to
provide uniform compression of gaskets.
I. The "Y" fitting in the vacuum pump discharge piping and all fittings in the fuel
oil piping within the building shall be of malleable iron.
J. Eccentric Fittings: reductions in sizes of steam mains and hot and/or chilled water
mains shall be made with eccentric fittings. To avoid trapping of condensate or
air in mains at eccentric reducers, install steam piping eccentric reducers with the
offset to the bottom of the run, and install water piping eccentric reducers with the
offset to the top of the run.
K. Reducing Fittings: except for welded piping, no fittings shall be taped for drip
except in boss provided for that purpose. Reducing fittings shall be used where
drips are required.
L. Unions shall be used in piping only adjacent to units of equipment such as pumps,
oil burners, compressors, heating coils, cooling coils and all other items and
accessories, or in other locations where specified, where shown on the Drawings,
or where written permission is granted prior to installation.
3.05 INSTALLATION OF FLEXIBLE CONNECTIONS
A. N/A
3.06 PIPING TESTS
A. For operational and hydrostatic tests, refer to Section 15992: Cleaning and
Testing.
B. Where piping installed under this project is connected to any existing system,
such installed piping shall be isolated from the existing system during the
performance of the required tests.
3.07 INSTALLATION OF PIPING SPECIALTIES
A. Pipe Escutcheons: Install pipe escutcheons on each pipe penetration through
floors, walls, partitions, and ceilings where penetration is exposed to view; and on
exterior of building. Secure escutcheon to pipe or insulation so escutcheon covers
penetration hole, and is flush with adjoining surface.
B. Strainers
1. Locate strainers in supply line ahead of the following equipment, and
elsewhere as indicated, if integral strainer is not included in equipment:
Pumps.
C. Dielectric Unions: install at each piping joint between ferrous and non-ferrous
piping. Comply with manufacturer's installation instructions.
D. Pipe Sleeves
1. Install pipe sleeves where piping passes through walls, floors, ceilings,
and roofs. Do not install sleeves through structural members of work,
except as detailed on the Drawings or as reviewed by the Project
Architect. Install sleeves accurately centered on pipe runs. Size sleeves
so that piping and insulation (if any) will have free movement in sleeve,
including allowance for thermal expansion; but not less than 2 pipe sizes
larger than piping run. Where insulation includes vapor-barrier jacket,
provide sleeve with sufficient clearance for installation. Install length of
sleeve equal to thickness of construction penetrated, and finish flush to
surface; except floor sleeves. Extend floor sleeves 1/4" above level floor
finish, and 3/4" above floor finish sloped to drain. Provide temporary
support of sleeves during placement of concrete and other work around
sleeves, and provide temporary closure to prevent concrete and other
materials from entering sleeves.
a. Install sheet-metal sleeves at interior partitions and ceilings other
than suspended ceilings.
b. Install iron-pipe sleeves at exterior penetrations, both above and
below grade.
c. Install steel-pipe or plastic-pipe sleeves where indicated on the
Drawings.
2. Sleeves for floors, walls and other masonry work shall be set in place
before the slabs or walls are constructed. In buildings having floor slab of
composite metal deck construction, Contractor shall be responsible for
cutting holes in the steel deck. Where drilled openings are in terra cotta
arch, exposed hollow core of the blocks shall be completely filled with
non-shrink grout and prepacked to achieve firm bearing on the entire
perimeter of the structural steel sleeve. Where corrugated sheet metal is
encountered, it shall be cut by the rotary drill used to cut the arch. For
location of sleeve, Contractor is to coordinate with new and existing
Drawings (Structural steel beams are shown on original Drawings).
Openings in arch must be located to miss existing structural steel.
Openings in existing arch are to be made by rotary core drill only.
Hammering of any type is not permitted. The size of the opening in arch
may not exceed the requirement shown on the Details Drawings. The mix
for non-shrink grout shall be in accordance with the manufacturer's
recommendations. The non-shrink grout shall be compacted to provide
firm bearing between the structural steel sleeve or sleeves and the existing
arch. Additionally, where there are two sleeves, provide compacted non-
shrink grout between the sleeves.
E. Mechanical Seals: Mechanical modular seals may be used in lieu of packing and
sealant for sleeves and core drilled holes. Loosely assemble rubber links around
pipe with bolts and pressure plates located under each bolt head and nut. Push
into sleeve and center. Tighten bolts until links have expanded to form watertight
seal. Use fire protective seals where required. Size annular space as required for
seal installation.
F. Fire Barrier Penetration Seals: refer to Section 07270: Firestopping
G. Drip Pans: locate drip pans under piping passing over or within 3 feet of electrical
equipment, and elsewhere as indicated. Hang from structure with rods and
building attachments, weld rods to side of drip pan. Brace to prevent sagging or
swaying. Connect 1" drain line to drain connection, and run to nearest plumbing
drain or elsewhere as indicated on Drawings.
3.08 MISCELLANEOUS CONNECTIONS
A. For steel piping runouts not detailed on the Drawings, use three elbow
connections between runouts and mains.
B. Connections to Equipment: provide three elbow runouts to all rotating equipment
such as pumps and chillers. Provide swing connections for boilers. Provide four
elbow connections to fuel oil tanks.
C. Connections to Building Structure: connect to trusses and joints at panel points.
Provide supplementary steel framing at panel points to transfer loads to framing.
3.09 INSTALLATION OF SUPPORTS AND ANCHORS
A. Provide all necessary pipe hanger material needed to safely and securely support
or hang all piping. Pipe hanger loads shall be determined by accurate weight
balance calculations to prevent transferring loads and forces to any equipment and
terminal connections.
B. Install building attachments at required locations within concrete or on structural
steel for proper piping support. Space attachments within maximum piping span
length indicated in MSS SP-69 and MSS SP-89. Install additional concentrated
loads at valves, flanges, guides, strainers, expansion joints, and changes in
direction of piping. Install concrete inserts before concrete is poured; fasten insert
securely to forms. Where concrete with compressive strength less than 2500 psi
is indicated, install reinforcing bars through openings at top of inserts. For
composite metal decks, inserts shall be of the type that is supported entirely by the
concrete slab, not by the metal deck.
C. Install hangers, supports, clamps and attachments to support piping properly from
building structure. Arrange for grouping of parallel runs of horizontal piping to
be supported together on trapeze type hangers where possible. Install supports
with maximum spacings complying with MSS SP-69 and MSS SP-89. Where
piping of various sizes is to be supported together by trapeze hangers, space
hangers for smallest pipe size or install intermediate supports for smaller diameter
pipe. Do not use wire or perforated metal to support piping, and do not support
piping from other piping.
D. Install hangers and supports complete with necessary inserts, bolts, rods, nuts,
washers and all other items and accessories. Except as otherwise indicated for
exposed continuous pipe runs, install hangers and supports of same type and style
as installed for adjacent similar piping.
E. Prevent electrolysis in support of copper tubing by use of hangers and supports
which are copper plated or by other recognized industry methods.
F. Provisions for Movement
1. Install hangers and supports to allow controlled movement of piping
systems, to permit freedom of movement between pipe anchors and to
facilitate action of expansion joints, expansion loops, expansion bends and
similar units.
2. Load Distribution: Install hangers and supports so that piping live and
dead loading and stresses from movement will not be transmitted to
connected equipment.
3. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes
and so that maximum pipe deflections allowed by ANSI B31 Pressure
Piping Codes are not exceeded.
G. Pipe Supports
1. Mains located near floors shall be supported on roller type pipe stands
bedded in cement base. When mains are installed before concrete floor is
laid, the mains shall be supported from overhead construction until the
pipe stands can be put in place.
2. Horizontal piping connections (near floor) to convectors and all other
items and accessories located more than 4' from risers shall be supported
on adjustable iron pipe stands. Pipe stand shall consist of a split ring
extension hanger mounted on a hanger flange, which shall be secured to
the floor.
H. Insulated Piping: Comply with the following installation requirements.
1. Clamps: Attach clamps, including spacers (if any), to piping with clamps
projecting through insulation; do not exceed pipe stresses allowed by
ANSI B31.
2. Shields: Where low-compressive-strength insulation or vapor barriers are
indicated on chilled water piping, install coated protective shields. For
pipe 8" and over, install wood insulation saddles.
3. Saddles: Where insulation without vapor barrier is indicated, install
protection saddles.
I. Install anchors at proper locations to prevent stresses from exceeding those
permitted by ANSI B31 and to prevent transfer of loading and stresses to
connected equipment.
J. Fabricate and install anchor by welding steel shapes plates and bars to piping and
to structure. Comply with AWS standards.
K. Where expansion compensators are indicated, install anchors in accordance with
expansion unit manufacturer's written instructions and to limit movement of
piping and forces to maximum recommended by manufacturer for each unit.
L. Anchor Spacings: where not otherwise indicated, install anchors at ends of
principal pipe-runs, at intermediate points in pipe-runs between expansion loops
and bends. Make provisions for preset of anchors as required to accommodate
both expansion and contraction of piping.
M. Piping passing under concrete areas shall be supported by hangers secured by
means of beam clamps fastened to the beams. Where pipe support spacing is
excessive between steel, beam clamps shall be fastened to structural members that
are approved by the SCCC. Removed fireproofing around beams shall be
replaced to original condition. No hangers or supports shall be attached to hung
ceilings, concrete, ductwork or work of other trades.
3.10 CLEANING, FLUSHING, INSPECTING
A. Clean exterior surfaces of superfluous materials, and prepare for application of
specified coatings (if any). Flush out piping systems with clean water before
proceeding with required tests. Inspect each run of each system for completion of
joints, supports and accessory items. Inspect pressure piping in accordance with
procedures of ASME B31.
B. Hanger Adjustments: adjust hangers so as to distribute loads equally on
attachments.
C. Support Adjustment: provide grout under supports so as to bring piping and
equipment to proper level and elevations.
3.11 PAINTING
A. Upon completion of the installation, remove all protecting materials, all scale and
grease and leave in a clean condition for painting.
3.12 PIPE APPLICATION
A. Boiler Piping
1. Each boiler shall be connected with hot water and accessories piping as
shown on the Drawings and as specified. Refer to the Drawings Details.
B. Dissimilar Pipe Joints
1. Between Cast Iron and Threaded Pipe: Use a half coupling screwed onto
the threaded pipe to form a spigot end and calk into the cast iron pipe.
2. Between Black Steel Pipe and brass or copper pipe or tubing: Use a
dielectric connector.
3. Between Galvanized steel and brass or copper pipe or tubing: Use a
dielectric connector.
4. Between Threaded Brass and Threadless Copper Pipe: Use a suitable
brazing adapter.
5. Between Threaded Pipe and Types L Copper Tubing or Welded Brass:
Water Tube: Use suitable cast bronze soldering adapter.
3.14 PIPE AND FITTING SCHEDULE
A. Boiler hot water piping;
1. 2-1/2" and Less: Standard Weight Black Steel pipe, with Screwed End and
Standard Weight Steel Fittings.
2. 3" and Up: Standard Weight Black Steel pipe, with Weld End and
Standard Weight Steel Fittings.
B. Gas piping:
1. 2-1/2" and Less: Standard Weight Black Steel pipe, with Screwed End and
Standard Weight Steel Fittings.
C. Boiler Flue and Vents:
1. All sizes, PVC, standard weight, schedule 40, Type I, Grade I polyvinyl
Chloride, ASTM D1785.
2. All sizes, CPVC, standard weight, schedule 40, Type I, Grade I
polyvinyl Chloride, ASTM F441.
D. Dain and neutralizer piping:
1. All sizes, PVC, standard weight, schedule 40, Type I, Grade I polyvinyl
Chloride, ASTM D1785.
END OF SECTION
SECTION 15511
VALVES (HVAC)
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide labor, materials, equipment, accessories, services and test necessary to
complete and make ready for operation, all valves shown on the Drawings and
hereinafter specified in other Division-15 Sections (HVAC).
1.02 RELATED SECTIONS
A. HVAC Identification ........................................................ Section 15502
B. HVAC Piping ................................................................... Section 15510
C. Cleaning and Testing ....................................................... Section 15992
1.03 SUBMITTALS
A. Product Data
Submit manufacturer's product data including valve design, pressure and
temperature classification, end connection details, seating materials, trim material
and arrangement, required clearances and installation instructions. Submit valve
schedule showing manufacturer's figure number, location, and valve features for
each required valve. Include list indicating valve and its application in the
schedule.
B. Shop Drawings
Submit manufacturer's assembly-type (exploded view) shop drawings for each
type of valve indicating dimensions, weights, materials, and methods of assembly
of components.
C. Maintenance Data
Submit maintenance data and spare parts lists for each type of valve. Include this
data, product data, and shop drawings in maintenance manual in accordance with
requirements of Division 1. Include manufacturer's instructions on adjusting,
servicing, disassembling, and repairing.
1.04 QUALITY ASSURANCE
A. Manufacturers
Firms engaged in manufacturing of valves, of types and sizes required, whose
products have been in satisfactory use in similar service for not less than 5 years.
B. Codes and Standards
1. MSS Compliance: Mark valves in accordance with MSS-25: Standard
Marking System for valves, fittings, flanges and unions and all other
applicable MSS Standards.
2. ANSI Compliance: For face-to-face and end-to-end dimensions.
3. UL and FM Compliance: Provide valves used in fire protection piping
which are UL-listed and FM approved.
4. ASME Compliance: Comply with ASME B31.9 for building services
piping and ASME B31.1 for power piping.
C. Valves of one type throughout the Project shall be of the same manufacturer.
PART 2 - PRODUCTS
2.01 GENERAL
A. Provide all the valves shown on the Drawings (HVAC Work) and necessary for
the control and easy maintenance of all piping and equipment. Valves shall be
first quality, have proper clearance, followers in the packing glands, and shall seal
tight at the specified test pressure. Each valve shall have the maker's name or
brand, the figure or list number and the guaranteed working pressure cast on the
body and cast or stamped on the bonnet.
1. Working Pressure: Valves shall be designed for working pressure of not
than 200 psi and 350 psig hydrostatic tests.
B. All valves shall be designed for packing under pressure with valve open or closed.
C. Valves 2" and under shall be all bronze, unless otherwise shown on the Drawings.
Valves 2 1/2" and larger shall be iron body bronze mounted (IBBM), iron body
brass mounted, or iron body with outside screw and yoke (OS&Y) unless space
conditions prevent the use of O.S.& Y. valves, in which case non-rising stem
valves may be used.
D. Solder end valves shall be suitable for brazing.
E. All valves up to 2" in diameter shall have threaded or solder ends, 2 1/2" in
diameter and over shall have flanged, or butt-welded unless otherwise shown on
the Drawings.
2.02 MATERIALS
A. Body
1. Cast Iron: ASTM A126, Class B, higher strength cast iron.
2. Bronze: For use up to 150 psig WSP, ASTM B62 and over 150 psig to 300
psig WSP, ASTM B61.
3. Cast Steel: ASTM A216 Grade WCB.
4. Forged Steel: ASTM A105 Grade 2.
B. Stem
1. Cast Manganese Bronze: ASTM B584.
2. Cast Silicon Brass: ASTM B584.
3. Rolled Silicon Brass: ASTM B98 Alloy D.
4. Rolled Aluminum Bronze: ASTM B150 Alloy 1.
5. Rolled Manganese Bronze: ASTM B138 Alloy A (half hard).
6. Naval Brass: ASTM B21 Alloy A or Alloy C (hard).
7. Carbon Steel: As specified for particular type of valve.
8. Stainless Steel: As specified for particular type of valve.
C. Trim: As specified for particular type of valve.
2.03 GATE VALVES
A. All gate valves shall be of the solid wedge disk type.
B. Gauge Valves: Use gate valves, cocks are not acceptable.
C. Hose gate valves shall be 125 psi, 3/4", standard weight bronze with cap.
D. Manufacturers
Subject to compliance with requirements, manufacturers offering gate valves
which may be incorporated in the work include, but are not limited to the
following:
Crane Co.
Hammond Valve Corp.
NIBCO, Inc.
Stockham Valves & Fittings
Milwaukee Valve Company
Lunkenheimer-Energovalves, Inc.
Walworth Mfg. Co.
2.04 GLOBE VALVES
A. Except valves in pneumatic and automatic temperature control piping and
pneumatic and automatic valves, no globe valve of size larger than 1/2" shall be
used, unless otherwise specified or shown on the Drawings. Where globe valves
are approved, they shall be of the same grade called for other valves.
2.05 CHECK VALVES
A. Check valves shall be of heavy pattern, straightway, horizontal swing, re-grinding
type with hinged check, ground seat and approved type bronze discs. The discs
for check valves, of size larger than 2" may be bronze faced.
B. Swing Check Valves: horizontal swing, Y-pattern, cast-bronze body and cap,
rotating bronze disc with rubber seat or composition seat, threaded or soldered
end connections or cast-iron body and bolted cap, horizontal-swing bronze disc,
flanged or grooved end connections.
C. Globe Silent Check Valves: cast-iron body, cast bronze plug, stainless steel spring, cast
bronze seats and bushing and stainless steel screw flanged end connections.
D. Manufacturers
Subject to compliance with requirements, manufacturers offering check valves
which may be incorporated in the work include, but are not limited to the
following:
Crane Co.
Hammond Valve Corp.
Mueller Steam Specialty
NIBCO, Inc.
Stockham Valves & Fittings.
Victaulic Co. of America
Milwaukee Valve Company
Walworth Mfg. Co.
2.06 COCKS
A. Cocks, where specified or shown on the Drawings shall be for not less than 150
psi working pressure. Asbestos packed cocks will not be approved.
2.07 PLUG VALVES
A. Lubricated Plug Valves shall be of the lubricated tapered plug type, with 125
pound body. Plugs shall be teflon coated and fitted with an "0" ring packing.
B. Tapered plugs shall be faced with a thermally bonded anti-friction material.
Valves shall have "Sealed Port" lubrication system allowing complete lubrication
of valve while in service, under line pressure, installed in any position.
2.08
2.09 VALVE OPERATORS
A. Provide suitable handwheel for gates, globes or angles, and drain valves.
B. Provide one plug valve wrench for every ten plug valves sized 2" and smaller,
minimum of one. Provide each plug valve sized 2-1/2" and larger with a wrench,
with set screw. Deliver wrenches to the SCCC and attach receipt to final
payment.
C. Provide valves located more than 7' from floor in equipment room areas with
chain operated sheaves. Extend chains to about 5' above floor and hook to clips
arranged to clear walking aisles. Provide extended valve shafts, 4" min to keep
chain away from pipe insulation.
2.10 VALVE FEATURES
A. Provide valves with features indicated and, where not otherwise indicated,
provide proper valve features as determined for installation requirements.
B. Bypass: Comply with MSS SP-45, and except as otherwise indicated, provide
manufacturer's standard bypass piping and valving.
C. Drain: Comply with MSS SP-45, and provide threaded pipe plugs.
D. Flanged: Valve flanges complying with ANSI B16.1 (cast iron), ANSI B16.5,
(steel), or ANSI B16.24 (bronze).
E. Threaded: Valve ends complying with ANSI B2.1.
F. Butt-Welding: Valve ends complying with ANSI B16.25.
G. Socket-Welding: Valve ends complying with ANSI B16.11.
H. Solder-Joint: Valve ends complying with ANSI B16.18.
I. Flangeless: Valve bodies manufactured to fit between flanges complying with
ANSI B16.1 (cast iron), ANSI B16.5 (steel), or ANSI B16.24 (Bronze).
2.11 BALL VALVES
A. Ball valves shall be full ported 600 W.O.G. bronze body, chrome plated bronze or
brass ball and teflon seals, with screw or solder ends. Ball valves shall have a
lever handle. Screw end ball valve shall be Apollo 82-100, Conbraco Industries,
Inc., Milwaukee BA-300, Hammond 8604 Stockham S-216 BR-R-T and solder
end ball valve shall be Apollo 82-200, of Conbraco Industries, Inc., Milwaukee
BA-350, Hammond 8614, Stockham S-216 BR-R-S. Ball valves should be used
for up to 2" sizes only.
2.12 CAST OR FORGED STEEL VALVES
A. Gate Valves:
Forged steel body, bolted bonnet, OS&Y, rising stem, solid wedge, screwed or
welding ends, built for 600 psig at 850o F., 1800 psig hydrostatic shell tests.
Materials:
Body and Bonnet: forged steel.
Stem: stainless steel (18-8 or CR 13).
Seat Ring: stainless steel, seat hardened to 400 Brinnel.
Wedge: stainless steel surface hardened to 400 Brinnel.
Bonnet Gasket: spiral wound stainless steel with six packing rings.
Handwheel: steel or malleable iron.
B. Check Valves
1. Horizontal swing check, cast steel body and bolted cap, flanged ends, built
for 300 psig at 850o F., 900 psig hydrostatic shell tests. Disc shall be
heavy one-piece construction, suspended on a detachable hinge with
detachable hinge pin.
Materials:
Body and Cap: cast steel.
Seat Ring: stainless steel.
Disc: stainless steel and renewable.
Hinge Pin: stainless steel and renewable.
Gasket: soft corrugated iron.
2. Lift check, forged steel body and bolted or union type cap, welding ends,
built for 600 psig at 850o F., 1800 psig hydrostatic shell tests.
Materials:
Body and Cap: forged steel.
Seat ring: stainless steel.
Disc: stainless and renewable.
Gasket: spiral wound stainless steel.
3. Ball check, forged steel body, bolted cap, screwed ends, built for 600 psig
at 850o F., 1800 psig hydrostatic shell tests.
Materials:
Body and Cap: forged steel.
Seat Ring: stainless steel.
Ball: stainless steel.
Gasket: soft corrugated iron.
4. Silent check, cast steel body, stainless steel trim and spring, flanged ends
built for 300 psig at 850o F., 900 psig hydrostatic shell tests. Valve shall
be center guided or globe type, of such design that closing action is spring
controlled so as to return disc to seat at zero velocity or before reversal of
flow takes place in pipe line. Disc shall be free floating controlled by
velocity of flow, without aid of grease or counterweight balance for
operation. Check valve shall be designed to prevent grinding of seat and
disc after factory assembly.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Except as otherwise indicated, comply with the following requirements:
1. Install valves where required for proper operation of piping and equipment
including valves in branch lines where necessary to isolate sections of
piping. Locate valves so as to be accessible and so that separate support
can be provided when necessary.
2. Install valves with stems pointed up, in vertical position where possible,
but in no case with stems pointed downward from horizontal plane unless
unavoidable. Nonrising stem valves shall be used only where headroom
prevents full extension of rising stems. Install valve drains with hose-end
adapter for each valve that must be installed with stem below horizontal
plane.
3. Install gate valves for shut-off; to isolate equipment, part of systems, or
vertical risers and any banked system of coils and to separate each coil.
4. Hose gate valves: Provide hose gate valves to drain the pipe at the low
points of the system.
5. Install globe for throttling service and control device.
6. Use tapered lubricated plug valves in water systems for throttling service
and at the discharge of all pumps. Use nonlubricated plug valves only
when shut-off or isolating valves are also provided.
7. Provide tapered lubricated 1" drain gate valves at main shut-off valves,
and at all low points of piping and apparatus.
8. Provide 1" gate vent valves at all high points in the piping system.
9. Provide lock shield globe valve bypasses at the ends of the chilled water
and hot water circuits to obtain minimum circulation at times of low load.
Bypasses shall be 1" in diameter unless otherwise shown on the Drawings.
10. Provide lift check valves at the discharge of all pumps as shown on the
Drawings.
B. Insulation: Where insulation is indicated, install extended-stem valves, arranged
in proper manner to receive insulation.
3.02 ADJUSTING AND CLEANING
A. Valve Adjustment: After piping systems have been tested and put into service, but
before final testing, adjusting, and balancing, inspect each valve for possible
leaks. Adjust or replace packing to stop leaks, replace valve if leak persists.
B. Cleaning: Clean factory-finished surfaces. Repair any marred or scratched
surfaces with manufacturer's touch-up paint.
3.03 VALVES SCHEDULES APPLICATION
A. Boiler Trim:
300psig and less, 2" and less: Screwed end; forged steel gates.
B. Boiler supply and return:
1. 2" and Less: Screwed end; Class 125, bronze body gates.
2. 2-1/2" and Up: Flanged end; Class 125, OS&Y Iron body gates.
C. Boiler Feed Pump Discharge:
1. 2" and Less: Screwed end; Class 300, bronze body gates; Class 300, silent
check, cast steel valves (except at boiler).
2. 2-1/2" and Up: Flanged end; Class 250, OS&Y Iron body gates; Class
300, silent check, cast steel valves (except at boiler).
D. Option:
Ball Valves, 2" in size and less with screwed or solder ends as required by the
particular application, may be used in lieu of bronze body or OS&Y gate valves
for the following service applications, operating at a maximum of 125 psig: Hot
Water, and Cold Water in the Buildings.
E. Globe valves shall be of equivalent pressure ratings and manufacturer to that
stated for gate valves.
F. Drain cocks with threaded ends for hose connection shall be provided for any low
points in the risers.
G. All main piping shall have air automatic air vents, similar to Sarco 13W at high
points.
3.04 VALVE SCHEDULES
A. Gate valves – 2 inch and Less:
Class 125:
Manufacturer Threaded Threaded Solder Solder
NRS RS NRS RS
Crane 438 428 1701S 1700S
Hammond IB645 IB640 IB647 IB635
Nibco T113 T111 S113 S111
Stockham B-103 B-100 B-104 B-108
Milwaukee 105 148 115 1149
Lukenheimer 2129 2127 2133 2132
Walworth W4 W55 W4SJ W55SJ
Class 150:
Manufacturer Threaded Threaded
NRS RS
Crane N/A 431UB
Hammond IB637 IB629
Nibco T136 T134
Stockham B-130 B-120
Milwaukee N/A 1151
Lukenheimer 3153 3151
Walworth N/A W11
Class 300:
Manufacturer Threaded Threaded
NRS RS
Crane N/A 634E
Hammond IB656 IB654
Nibco T136 T174-SS
Stockham B-147 B-145
Milwaukee 1186 1184
Lukenheimer N/A 1962
Walworth N/A N/A
B. Gate valves – 2-1/2 inch and Up
Class 125:
Manufacturer OS&Y RS NRS
Crane 465-1/2 461
Hammond IR1140 IR1138
Nibco 617-0 F-619
Stockham G-623 G-612
Milwaukee F-2885 F-2882
Lukenheimer 1430 1428
Walworth 8726F 8719F
C. Swing Check valves – 2 inch and Less:
Class 125 Class 125 Class 150
Threaded Solder Threaded
Manufacturer Ends Ends Ends
Crane 37 1342 137
Hammond IB940 IB941 IB946
Nibco T-413 S-413 T-433
Stockham B-319 B-309 B-321
Milwaukee 509 1509 510
Lukenheimer 2144 2145 230-70
Walworth W406 W406SJ N/A
Class 300:
Manufacturer Threaded
Crane 76E
Hammond IB949
Nibco T-473-B
Stockham B-375
Milwaukee 517/507
Lukenheimer 554-Y
Walworth W428
D. Swing Check valves – 2-1/2 inch and Up
Manufacturer Class 125
Crane 373
Hammond IR1124
Nibco F-918
Stockham G-931
Milwaukee F-2974
Lukenheimer 1790 IBBM
Walworth W928F
NRS: Non Rising Stem; RS: Rising Stem; OS&Y: Outside Screw & Yoke
END OF SECTION
***
SECTION 15512
PIPING INSULATION
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide thermal insulation on the piping (HVAC) required on this Project, shown
on the Drawings, specified herein and needed for a complete and proper
installation.
All insulation materials shall be free of asbestos.
1.02 RELATED SECTIONS
A. HVAC Identification ........................................................ Section 15502
B. HVAC Piping ................................................................... Section 15510
C. Valves(HVAC) ................................................................ Section 15511
1.03 SUBMITTALS
A. Product Data
Submit manufacturer's product data and installation instructions for each type of
pipe system insulation. Submit schedule showing manufacturer's product number,
k-value, thickness, and furnished accessories for each piping system requiring
insulation.
B. Maintenance Data
Submit maintenance data and replacement material lists for each type of pipe
system insulation. Include this data and product data in the maintenance manual
in accordance with the requirement of Division 1.
C. Samples
Submit manufacturer's sample of each type in accordance with the requirement of
Division 1. Affix label to sample completely describing product.
1.04 QUALITY ASSURANCE
A. Manufacturer's Qualifications
Firms regularly engaged in manufacture of mechanical insulation products, of
types and sizes required, whose
products have been in satisfactory use in similar service for not less than 5 years.
B. Installer's Qualifications
Firm with at least three years successful installation experience on projects with
the mechanical insulation similar to that required for this Project.
C. Code and Standards
1. Pipe insulation including all accessory item shall have surface burning
characteristic rating for flame spread not over 25 and smoke developed not
over 50 as tested using ASTM E 84 method .
2. All insulation material shall have BSA and MEA numbers as required.
3. Comply with ASHRAE and New York State Energy Code Standards.
1.05 DELIVERY, STORAGE AND HANDLING
A. Deliver insulation, coverings, cements, adhesives, and coatings to site in
containers with manufacturer's stamp or label including fire hazard indexes.
B. Protect insulation against dirt, water, and chemical and mechanical damage. Do
not install damaged or wet insulation; remove from site.
1.06 TEMPERATURE REQUIREMENT
A. Apply adhesive, sealers, coating, and all other items and accessories at the proper
temperature as recommended by the manufacturer. If ambient conditions are not
acceptable, provide temporary heat as required for proper installation without any
delay to the Project completion.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Subject to compliance with requirements, manufacturers offering products which
may be incorporated in the work include, but are not limited to, the following:
Armstrong World Industries, Inc.
CertainTeed Corp.
Knauf Fiber Glass.
Manville/Schuller Intl. Inc.
Owens-Corning Fiberglas Corp.
Pittsburgh Corning Corp.
Rubatex Corp.
2.02 MATERIALS
A. Pipe Insulation
One-piece molded sectional fiber glass insulation shall have a nominal 4-pound
density with a thermal conductivity of not over 0.23 at 75o F. mean temperature.
Insulations shall have a jacket and adhesive used to adhere the jacket to the
insulation. Insulation shall be suitable for use on piping up to 450o F. operating
temperature.
B. Jackets
1. The jackets shall be of white kraft paper outer surface bonded to
aluminum foil and reinforced with fiber glass yarn (all service jacket with
self-sealing lap). The jackets shall meet the requirements of the
specification HH-B-1OOB type 1. For cold water pipe insulation, the
jackets shall be the vapor barrier type.
C. Bands, staples, tapes, wires, cements, adhesives, sealers and protective finishes:
As specified herein or as recommended by insulation manufacturer for proper
uses on piping insulations.
PART 3 - EXECUTION
3.01 EXAMINATION
A. Examine areas and condition under which the pipe insulation is to be installed.
Before applying the insulation, all tests specified in Division 1 and Division 15
Sections should have been completed. Do not proceed with work until
unsatisfactory conditions have been corrected in a manner acceptable to the
SCCC's Representative. However, thermal insulation can be applied to pipes
prior to these tests providing that all fittings are left bare to permit detection and
possible leaks.
3.02 INSTALLATION
A. Install insulation products in accordance with manufacturer's written instructions,
and in accordance with recognized industry practices to ensure that insulation
serves intended purpose.
B. Install insulation on pipe systems subsequent to installation of heat tracing,
painting, testing, and acceptance of tests.
C. Install insulation materials with smooth and even surfaces. Insulate each
continuous run of piping with full-length units of insulation, with single cut piece
to complete run. Do not use cut pieces or scraps abutting each other.
D. Clean and dry pipe surfaces prior to insulating. Butt insulation joints firmly
together to ensure complete and tight fit over surfaces to be covered.
E. Maintain integrity of vapor-barrier jackets on pipe insulation and protect to
prevent puncture or other damage.
F. Valves shall be insulated up to packing unit.
G. Fire Seal Application: Where pipes pass through fire walls, fire partitions, fire
rated pipe chase walls or floors above grade, insulation shall be interrupted and a
fire seal shall be provided as specified in Section 07270: Firestopping.
H. Extend piping insulation without interruption through walls, floors and similar
piping penetrations, except where otherwise indicated.
I. Use of pipe insulation having a "self-sealing lap" and "self-sealing lap strips" is
also acceptable.
J. The temperature of the jacket shall not exceed 150o F.
K. Hot Piping
1. Install the fiber glass insulation with factory supplied jacket. Butt all
joints firmly together and smoothly secure all jacket laps and joints strips
with lap adhesive.
2. Fittings and valves shall be insulated by applying the proper factory precut
fiber glass insulation insert to the pipe fitting and valve. The ends of the
fiber glass insulation insert shall be tucked snugly into the throat of the
fitting, valve and the edges adjacent to the pipe insulation tufted and
tucked in, fully insulating the pipe fitting. The fitting cover is then applied
and shall be secured by tack fastening, banding or taping the ends to the
adjacent pipe insulation.
a. On fittings where the operating temperature exceeds 250 o F or
where the pipe insulation thickness is greater than 1-1/2", two or
more layers of the fiber glass insulation inserts shall be applied
prior to the installation of the fitting cover. The first layer shall be
applied with a few wrappings of fiber glass yarn to eliminate voids
or hot spots. One additional fiber glass insulation insert shall be
used for each additional 1" of pipe insulation above 1-1/2".
3.03 PROTECTION AND REPLACEMENT
A. Replace damaged insulation during construction which cannot be repaired
satisfactorily, including units with vapor barrier damage and moisture saturated
units.
B. Protection
Insulation worker shall advise Contractor of required protection for insulation
work during remainder of construction period, to avoid damage and deterioration.
3.04 SCHEDULE OF PIPE INSULATION
A. The following piping systems shall be insulated
1. All boiler supply, return and by-pass hot water piping throughout.
C. Recommended Thickness:
Pipe Pipe Pipe Pipe
System Temp, F 1" & 1-1/4" to 2-1/2" to Above
Below 2" 4" 4"
=================================================================
HEATING:
Low Pressure
Steam200-250 1.0 1.5 2.5 2.5
Condensate 190-220 1.0 1.5 1.5 2.0
Hot Water-
Dual Temp 40-150 1.0 1.0 1.0 1.5
END OF SECTION
***
SECTION 15540
HVAC PUMPS
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide centrifugal HVAC pumps as specified herein, as shown of the Drawings
and as needed for a complete and proper installation. The types of pumps
specified in this section include the following: In line Circulator
1. Pumps furnished as part of the factory-fabricated equipment, are specified
as part of the equipment assembly in other Division-15 Sections.
B. Refer to Division-16 sections for the following work
Power supply wiring from power source to power connection on pumps. Include
starters, disconnects, and required electrical devices, except where specified as
furnished, or factory-installed by the manufacturer.
C. Provide packaged pumping system with the following items: structural steel base;
pumps and motors; piping, valves and fittings; sequencing controls; pressure and
temperature transmitters.
1.02 RELATED SECTIONS
A. Identification ....................................................................... Section 15502
C. HVAC Piping ...................................................................... Section 15510
D. Cleaning and Testing .......................................................... Section 15992
1.03 SUBMITTALS
A. Product Data
1. Submit manufacturer's pump specifications, installation and start-up
instructions, and current accurate pump characteristic performance curves
with selection points clearly indicated.
2. For the packaged pumping system, submittals shall include the following
as a minimum: system design information sheet; description of system
operation; packaged system dimension and general arrangement drawing;
electrical power and control wiring diagram; pump material and
construction drawing; pump curve showing design point; catalog
information on valves, strainers and control components.
B. Shop Drawings
Submit manufacturer's assembly-type shop drawings indicating dimensions,
weight loadings, required clearances and methods of assembly of components.
C. Wiring Diagrams
Submit manufacturer's electrical requirements for power supply wiring to pumps.
Submit manufacturer's wiring diagrams for interlock and control wiring. Clearly
differentiate between portions of wiring that are factory-installed and portions to
be field-installed.
D. Maintenance Data
Submit maintenance data and spare parts lists for each type of pump, control, and
accessory; including "trouble-shooting" maintenance guide. Include this data,
product data, Shop Drawings and wiring diagrams in the maintenance manual in
accordance with requirements of Division 1.
1.04 QUALITY ASSURANCE
A. Manufacturer's Qualifications
Firms regularly engaged in manufacture of centrifugal pumps with characteristics,
sizes and capacities required, whose products have been in satisfactory use in
similar service for not less than five years.
B. Codes and Standards
1. HI Compliance: Design, manufacture and install HVAC pumps in
accordance with HI: Hydraulic Institute Standards.
2. UL Compliance: Design, manufacture and install HVAC pumps in
accordance with UL 778: Motor Operated Water Pumps.
3. UL and NEMA Compliance: Provide electric motors and components
which are listed and labeled by Underwriters Laboratories and comply
with NEMA Standards.
C. Certification, Pump Performance
Provide pumps whose performances under specified operating conditions, are
certified by the manufacturer.
D. Supply name plate data on pumps and drives.
E. The manufacturer of the packaged pumping system shall be the manufacturer of
the pumping system control logic panels.
1.05 DELIVERY, STORAGE AND HANDLING
A. Handle pumps and components carefully to prevent damage, breaking, denting
and scoring. Do not install damaged pumps or components; replace with new.
B. Store pumps and components in clean dry place. Protect from weather, dirt,
fumes, water, construction debris and physical damage.
C. Comply with Manufacturer's rigging and installation instructions for unloading
pumps and moving them to final location.
D. The entire packaged pumping system shall be factory assembled, tested and
shipped as a complete unit.
PART 2 - PRODUCTS
2.01 MATERIALS AND MANUFACTURERS
A. In-Line Circulator Pumps
1. Provide In-line circulator pumps where indicated on the Drawings and of
capacities as listed on the pump schedules.
a. Type: Horizontal mount, vertical split case, oil-lubricated,
designed for 125 psi working pressure, and 225o F continuous
water temperature.
b. Body: Cast iron, with suction and discharge gage tappings.
c. Shaft: Manufacturer to specify type of hardened alloy steel.
d. Bearings: Oil-lubricated bronze ball bearings with an oil level
indicator.
e. Seal: Mechanical, with carbon seal ring and ceramic seat.
f. Motor: Non-overloading at any point on pump curve, open, drip-
proof, oil-lubricated ball bearings, resilient mounted construction,
built-in thermal overload protection on single phase motors.
g. Coupling: Self-aligning flexible coupling.
h. Impeller: Enclosed type, hydraulically and dynamically balanced,
and keyed to shaft.
2. Manufacturers: Subject to compliance with requirements, manufacturers
offering In-line circulator pumps which may be incorporated in the work
include, but are not limited to, the following
Allied Pump Corporation
Amtrol Inc.
Bell & Gossett ITT; Fluid Handling Div.
Dunham-Bush, Inc.
Taco, Inc.
C. Motor Enclosures and Temperature Rise.
Motors subject to excessive dust or abrasive shall be of the totally enclosed type.
Motors subject to dripping oil or water shall be of the drip proof or otherwise
enclosed type. Conditions constituting a hazard from an explosive stand-point
shall require a motor of the explosion proof class. Temperature rise with Class
"A" insulation shall be based on the following: Open frame: 40 o C.; totally
enclosed and fancooled: 55o C. Temperature rises shall conform to A.I.E.E.
Standards for continuous and/or short time rated motors. Provide motors and
motor starters in accordance with the requirements of Section 16480: Motors and
Motor Control Equipment.
PART 3 - EXECUTION
3.01 INSPECTION
A. Examine areas and conditions under which pumps are to be installed. Do not
proceed with work until unsatisfactory conditions have been corrected in manner
acceptable to the SCCC.
3.02 INSTALLATION
A. Install pumps where indicated on the Drawings, in accordance with
manufacturer's installation instructions, complying with recognized industry
practices to ensure that pumps comply with requirements and serve intended
purposes.
1. Access: Provide access space around pumps for service, but in no case less
than that recommended by the manufacturer.
2. Install in-line pumps in piping system with supports and vibration isolators
recommended by the manufacturer.
3. Support: Install base-mounted pumps on a minimum of 4" high concrete
base with anchor bolts poured in place. Set and level pump, grout under
pump base with non-shrink grout. (Refer to Concrete requirement in the
appropriate sections of Division-3). Install pumps on vibration isolators.
B. Electrical Wiring
1. Install electrical devices furnished by manufacturer but not specified to be
factory-mounted. Furnish copy of manufacturer's wiring diagram
submittal to Electrical.
2. Provide the control wiring between field-installed controls, indicating
devices, and pump control panels and the control wiring specified in the
Temperature Control System Section.
3. Interlock wiring between pumps; and between pumps and field-installed
control devices which are not factory installed.
4. All pumps shall be installed on the 24 hour panel for continuous
uninterrupted pump operation.
C. Verify that electrical wiring installation is in accordance with manufacturer's
submittal and installation requirements of Division-16 Sections. Do not proceed
with equipment start-up until wiring installation is acceptable to equipment
manufacturer.
D. Piping Connections
Provide piping, valves, accessories, gauges, supports, and flexible connections as
indicated on the Drawings and as specified in other sections.
3.03 TEST
A. Refer to Section 15992: Cleaning and Testing.
3.04 ADJUSTING AND CLEANING
A. Alignment
Check alignment, and where necessary, realign shafts of motors and pumps within
recommended tolerances by the manufacturer and in presence of manufacturer's
service representative and the SCCC.
B. Start-Up
Lubricate pumps before start-up. Start-up in accordance with manufacturer's
instructions and in presence of manufacturer's service representative.
C. Cleaning
Clean factory-finished surfaces. Repair any marred or scratched surfaces with
manufacturer's touch-up paint.
END OF SECTION
*
SECTION 15980
THERMOMETERS AND GAUGES
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide all types of thermometers and gauges as shown on the Drawings, as part
of each Division-15 Section(HVAC) making reference to gauges specified herein,
and as needed for a complete and proper installation.
B. Thermometers and gauges furnished as part of factory-fabricated equipment, are
specified as part of the equipment assembly in other Division-15 Sections.
1.02 RELATED SECTIONS
A. Valves(HVAC) ................................................................ Section 15511
B. Cleaning and Testing ....................................................... Section 15992
1.03 SUBMITTALS
A. Product Data
Submit manufacturer's product data, including installation instructions for each
type of gauge and thermometer. Include scale range, ratings and calibrated
performance curves.
B. Maintenance Data
Submit maintenance data and spare parts lists for each type of meter and gauge.
Include this data and product data in maintenance manuals in accordance with
requirements of Division 1.
1.04 QUALITY ASSURANCE
A. Manufacturer's Qualifications
Firms regularly engage in manufacturer of thermometers and gauges, of types and
sizes required, whose products have been in satisfactory use in similar service for
not less than five years.
B. Codes and Standards
1. UL Compliance: comply with applicable UL standards pertaining to gauges.
2. ANSI and ISA Compliance: comply with applicable portions of ANSI and
Instrument Society of America (ISA) standards pertaining to construction
and installation of thermometers and gauges. ANSI B31.1 - Power Piping.
PART 2 - PRODUCTS
2.01 MATERIALS AND MANUFACTURERS
A. Glass Thermometer
1. Provide glass thermometers of materials, capacities, and ranges, designed
and constructed for use in service as required and indicated on the
Drawings.
a. Case: die cast aluminum finished in baked epoxy enamel, glass
front, spring secured, 9" long.
b. Adjustable Joint: die cast aluminum, finished to match case, 180o
adjustment in vertical plane, 360o adjustment in horizontal plane,
with locking device.
c. Tube and Capillary: mercury filled, magnifying lens, 1% scale
range accuracy, shock mounted.
d. Scale: satin faced, no-reflective aluminum, permanently etched
markings.
e. Stem: copper-plated steel, or brass, for separable socket, length to
suit installation.
f. Range: conform to the following:
1. Hot Water: 120o F. - 240o F. with 2o F. scale divisions.
2. Manufacturers: subject to compliance with requirements, manufacturers
offering glass thermometers which may be incorporated in the work
include, but are not limited to, the following:
Ernst Gage Co.
Marshalltown Instruments, Inc.
Trerice (H.O.) Co.
Weiss Instruments, Inc.
B. Dial Type Insertion Thermometers
1. Provide dial type insertion thermometers of materials, capacities and
ranges, designed and constructed for use in service as required and
indicated on the Drawings.
a. Type: bi-metal, stainless steel case and stem, 2-1/2" diameter dial,
dust and leak proof, 1/8"diameter stem with nominal length of 5".
b. Accuracy: 0.5% of dial range.
c. Range: conform to the following:
1. Hot Water: 120o F. - 240o F.
2. Manufacturers: subject to compliance with requirements, manufacturers
offering dial type insertion thermometers which may be incorporated in
the work include, but are not limited to, the following:
Marsh Instrument Co.; Unit of General Signal
Taylor Instrument Co.
Trerice (H.O.) Co.
Weiss Instruments, Inc.
C. Thermometer Wells
1. Provide thermometer wells constructed of brass or stainless steel, pressure
rated to match piping system design pressure. Provide 2" extension for
insulated piping. Provide cap nut with chain fastened permanently to
thermometer well.
2. Manufacturer: same as thermometers.
D. Pressure Gauges
1. Provide pressure gauges of materials, capacities and ranges, designed and
constructed for use in service as required and indicated on the Drawings.
a. Type: General use, 1% accuracy, ANSI B40.1 grade A, phosphor
bronze bourdon type, bottom connection.
b. Case: drawn steel or brass, cast aluminum, glass lens, 4-1/2"
diameter.
c. Connector: brass with 1/4" male NPT. Provide protective syphon
when used for steam service.
d. Scale: white coated aluminum, with permanently etched markings.
e. Range: conform to the following:
1) Water: 0 - 200 psi.
2. Manufacturers: subject to compliance with requirements, manufacturers
offering pressure gauges which may be incorporated in the work include,
but are not limited to, the following:
Ametek/U.S. Gauge.
Marsh Instrument Co.; Unit of General Signal
Marshalltown Instruments, Inc.
Trerice (H.O.) Co.
Weiss Instruments, Inc.
Potter-Roemer, Inc.
E. Pressure Gauge Cocks
1. Provide pressure gauge cocks between pressure gauges and gauge tees on
piping systems. Construct gauge cock of brass with 2/4" female NPT on
each end, and "T" handle brass plug.
a. Syphon: 1/4" straight coil constructed of brass tubing with 1/4"
male NPT on each end.
b. Snubber: 1/4" brass bushing with corrosion resistant porous metal
disc, through which pressure fluid is filtered. Select disc material
for fluid served and pressure rating.
2. Manufacturer: same as for pressure gauges.
F. Pressure Gauge Connector Plugs
1. Provide pressure gauge connector plugs rated for 500 psi and 240o F.
Construct of brass and finish in nickel-plate equip with 1/2" NPS fitting,
with self-sealing valve core type neoprene gasketed orifice suitable for
inserting 1/8" OD probe assembly from dial type insertion pressure gauge.
Equip orifice with gasketed screw cap and chain. Provide extension,
length equal to insulation thickness, for insulated piping.
2. Manufacturers: subject to compliance with requirements, manufacturers
offering pressure gauge connector plugs which may be incorporated in the
work include, but are not limited to, the following:
Peterson Equipment Co.
MG Piping Products Co.
Sisco, A Spedco, Inc. Co.
Trerice (H.O.) Co.
Watts Regulator Co.
G. Temperature Gauge Connector Plugs
1. Provide temperature gauge connector plugs pressure rated for 500 psi and
240o F. Construct of brass and finish in nickel-plate, equip with 1/2" NPS
fitting, with self-sealing valve core type neoprene gasketed orifice suitable
for inserting 1/8" OD probe assembly from dial type insertion
thermometer. Equip orifice with gasketed screw cap and chain. Provide
extension, length equal to insulation thickness, for insulated piping.
2. Manufacturers: subject to compliance with requirements, manufacturers
offering temperature gauge connector plugs which may be incorporated in
the work include, but are not limited to, the following:
Peterson Equipment Co.
MG Piping Products Co.
Sisco, A Spedco, Inc. Co.
Trerice (H.O.) Co.
Watts Regulator Co.
PART 3 - EXECUTION
3.01 INSPECTION
A. Examine areas and conditions under which thermometers and gauges are to be
installed. Do not proceed with work until unsatisfactory conditions have been
corrected in manner acceptable to the SCCC.
3.02 INSTALLATION
A. Temperature Gauges
1. Install temperature gauges in vertical upright position and tilted so as to be
easily read by observer standing on the floor.
2. Locations: install in the following locations, and elsewhere as indicated on
the Drawings:
a. At inlet and outlet of each boiler .
3. Thermometer Wells: install in piping tee where indicated on the Drawings,
in vertical upright position. Fill well with oil or graphite, secure cap.
4. Temperature Gauge Connector Plugs: install in piping tee where indicated
on the Drawings, located on pipe at most readable position. Secure cap.
B. Pressure Gauges
1. Install pressure gauges in piping tee with pressure gauge cock, located on
pipe at most readable position.
2. Locations: install in the following locations, and elsewhere as indicated on
the Drawings:
a. At suction and discharge of each pump.
c. At each boiler as shown on the Drawings.
3. Pressure Gauge Cocks: install in piping tee with snubber. Install syphon
for steam pressure gauges.
4. Pressure Gauge Connector Plugs: install in piping tee where indicated on
the Drawings, located on pipe at most readable position. Secure cap.
3.03 ADJUSTING AND CLEANING
A. Adjusting: adjust faces of gauges to proper angle for best visibility.
B. Cleaning: clean windows of thermometers and gauges and factory-finished surfaces.
Replace cracked or broken windows, repair any scratched or marred surfaces with
manufacturer's touch-up paint.
END OF SECTION
