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					UniSpec II                                                                                                          032709

SECTION 13425 - SUB-METERING INSTRUMENTATION

PART 1 - GENERAL

1.1        SUMMARY

      A.   Section Includes
           1.     Owner furnished, Contractor installed sub-metering instrumentation system including data logger and CT
                  sub-meters.
           2.     Owner furnished and installed main demand sub-meter for the sub-metering instrumentation system.
           3.     Contractor furnished and installed low voltage wiring, terminations, and accessories for sub-meter system.

      B.   Products furnished and installed by Owner:
           1.    The Owner’s supplier will furnish and install the main demand sub-meter as specified herein.

      C.   Products Installed But Not Supplied Under This Section:
           1.    Under provisions of 01640, sub-metering instrumentation equipment as specified herein will be furnished
                 by Owner’s supplier including data logger and CT sub-meters for installation by the Contractor.

      D.   Owner’s Supplier:
           1.   Owner’s supplier will be the EDC vendor as specified in Section 16405.
           2.   Descriptions and related provision for products and equipment by Owner’s supplier as specified hereinafter
                are included as information to the Contractor only and not to be considered as Contractor requirements un-
                less otherwise stated.

      E.   Related Sections
           1.     Section 01640 - Owner Furnished Products.
           2.     Section 16050 - Basic Electrical Materials and Methods.
           3.     Section 16100 - Wiring Methods.
           4.     Section 16405 - Electrical Distribution Center (EDC).

1.2        SUBMITTALS

      A.   Provide the following closeout documentation to the Owner
           1.    Data logger store load report.
           2.    Data logger screen captures.

1.3        APPROVED SUB-METER SYSTEM CONTRACTORS

      A.   The General Contractor shall select one of the following sub-meter system contractors for installation of the sub-
           metering system.
           1.     Nexrev
                  601 Development Drive
                  Plano, TX 75074
                  Contact: Ken Logsdon
                  kenlogsdon@nexrev.com
                  Office: (972) 578-0505 Cell: (318) 840-5536
           2.     Besco
                  629 Broadway NW
                  Knoxville, TN 37917
                  Contact: Tom Ryan
                  tryan@besco.com
                  Office: (865) 342-5706 Cell: (865) 740-6709
           3.     RS Services



June 10, 2009                                                                     SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                                                   13425-1
                  P.O. Box 750424
                  Duncan, OK 73575
                  Contact: David Meadows
                  david@rsservicesonline.com
                  Cell: (580) 678-1696
           4.     Quinco Electric
                  4224 Metric Dr.
                  Winter Park, FL 32792
                  Contact: David Sanchez
                  rcavazos@quincoelectric.com
                  Office: (407) 857-6133
           5.     Ellsworth Electric
                  4425 N. Hwy. 81
                  Duncan, OK
                  Contact: Shane Elam
                  shane@ellsworthelectric.com
                  Office: (800) 725-2967 Cell: (580) 656-1886
           6.     McBride Electric
                  P.O. Box 734
                  Kimberton, PA 19442
                  Contact: Tim Lawler
                  tlawler@mcbridempower.com
                  Office: (610) 495-9671 Cell: (610) 639-4877

1.4        REGULATORY REQUIREMENTS

      A.   Sub-metering system components shall be UL listed for use as an integral part of the Sub-metering system.

1.5        WARRANTY

      A.   Provide 1 year warranty on installation. The warranty shall cover the following:
           1.    Labor and service due to failure for 1 year beyond the Grand Opening date.
           2.    Provide a minimum 24 hr response time to warranty issues.

      B.   Owner furnished equipment will be provided by Wal-Mart supplier.

1.6        PERMITS

      A.   Obtain necessary permits, licenses, approvals, and certificates of inspection as required by local authorities for a
           completed project.

PART 2 - PRODUCTS

2.1        MAIN DEMAND SUB-METER (OWNER FURNISHED AND INSTALLED)

      A.   Manufacturer and Product Model: Square D model PM 820 RD.
           1.    Communications
                 a.     One RS 485 port, two digital inputs, and one digital output.
                 b.     Modbus protocol for integration with Energy Management System.
                 c.     1 pulse output for kWh-pulsing or external controlled output.
                 d.     2 inputs for demand input synchronization.
           2.    Performance and Accuracy
                 a.     ANSI C12.20.0.5 Accuracy Class.
                 b.     Measures per phase voltage, current, peak current, watts, VARs, kWh.
                 c.     Measure and display THD, frequency, power factor.
           3.    Display



June 10, 2009                                                                      SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                                                    13425-2
                  a.     Backlit LCD display.
                  b.     Can display five lines of information simultaneously.
                  c.     Tactile buttons for menu operation.
           4.     Input Voltage Characteristics
                  a.     Measure up to 480V AC Direct.
                  b.     Measure up to 1.6MV AC with external VT.
                  c.     Impedance 2MOhms (phase to phase) / 1MOhm (phase to neutral).
                  d.     Frequency Range (45 to 65Hz).
           5.     Input Current Characteristics
                  a.     CT Ratings: Primary Adjustable from 5A to 32767A.
                  b.     Measurement Input Range: 5mA to 6A.
                  c.     Impedance: < .1 Ohms.
                  d.     Load: < .15VA.

2.2        DATA LOGGER (OWNER FURNISHED)

      A.   Manufacturer and Product Model: Energy ICT model RTU+ Server
           1.    Hardware and Software
                 a.     LED indicators for the following:
                        1)     One power on indicator.
                        2)     Two ethernet connectivity indicators (one for each channel).
                        3)     Two RX/TX indicators (one for transmission, one for receiving).
                        4)     Eight digital I/O indicators (four for digital inputs, four for digital outputs).
                        5)     Two application dependent LEDs.
                        6)     One “watchdog” monitoring indicator.
                 b.     Minimum of two USB 2.0 connectors.
                 c.     Memory: 4GB of compact flash memory with a 1.4 GB divided rescue partition.
                 d.     Operating System: Linux OS with Derby Database.
                 e.     Data collection software with extended protocol library.
           2.    Communications:
                 a.     One RS 485 port.
                 b.     Modbus protocol.
           3.    Input and Output Characteristics:
                 a.     Ability to collect analog or digital data from 32 inputs.
                 b.     VGA connector for local connectivity by laptop.
           4.    Pre-Installed Channel Labels:
                 a.     Pre-programmed drop down menus for each channel.
                 b.     Pre-programmed channel labels shall include labels from the Owner’s approved list.

2.3        CT SUB-METERS (OWNER FURNISHED)

      A.   Manufacturer and Product Model: Veris Industries model H8036
           1.    Characteristics:
                 a.     Three split-core CTs.
                 b.     Electronics embedded inside of master CT sub-meter.
                 c.     Conform to UL508 safety standards for industrial control equipment.
                 d.     Internally isolated to 2000V AC.
                 e.     Meter case isolation shall be 600V AC.
           2.    Performance and Accuracy:
                 a.     Measure RMS power, instantaneous demand, and consumption.
                 b.     Accept directly any voltage input up to 480V AC.
                 c.     Accuracy to +/- 1% from 10% to 100% of the rated current.
                 d.     Conform to ANSI C12.1 metering standards.
           3.    Communications:
                 a.     Report serially over an RS-485 network.
                 b.     Use the Modbus/RTU protocol.



June 10, 2009                                                                       SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                                                     13425-3
                  c.     kWh variable shall be stored in non-volatile memory.

PART 3 - EXECUTION

3.1        INSTALLATION

      A.   Owner’s Supplier Responsibility: The EDC vendor will:
           1.   Provide (furnish and install) main demand sub-meter specified herein.
           2.   Furnish the data logger and ship to the General Contractor for installation by the sub-meter contractor.
                a.       Stencil a location for the data logger to be installed.
                b.       Locate data logger within 3 ft. from the EMS.
           3.   Furnish CT sub-meters.
                a.       Install CT sub-meters that are located in the main EDC1.
                b.       Install the conductors through the center of each CT sub-meter installed. Conductors shall not be in
                         contact with the CT sub-meter.
                c.       Furnish all remaining CT sub-meters and ship to the General Contractor for installation by the sub-
                         meter contractor.
           4.   Install locking breakers for CT sub-meter as shown on drawings.
           5.   Assign channel numbers to each CT sub-meter as shown on drawings.
           6.   Each CT sub-meter installed by the EDC vendor shall be labeled. Labels shall include:
                a.       Modbus amperage.
                b.       Modbus address (CT sub-meter number).
                c.       Modbus description (Panel or load served).

EXAMPLES: 100A CT26 AHU2 or 100A CT27 AHU3




      B.   Contractor Responsibility: The sub-meter contractor selected by the General Contractor shall:
           1.    Obtain the latest Sub-Metering Programming Guide prior to installation. Obtain guide from Energy ICT at
                 walmart@energyict.com.
           2.    Install CT sub-meters as shown on drawings. Install the conductors through the center of each CT sub-
                 meter installed. Conductors shall not be in contact with the CT sub-meter.
           3.    Install data logger. Mount data logger in the location stenciled in by the EDC vendor and located not more
                 than 3 ft. from the EMS.
           4.    Provide low voltage wiring and required accessories.
           5.    Make terminations and connections to EMS system. Use Belden 1120A cable to connect to EMS system.
           6.    Assign channel numbers for field installed CT sub-meter.
           7.    Label each CT sub-meter installed by the sub-meter Contractor. Labels shall include:
                 a.      Modbus amperage.
                 b.      Modbus address (CT number).
                 c.      Modbus description (Panel or load served).

EXAMPLES: 100A CT26 AHU2 or 100A CT27 AHU3




June 10, 2009                                                                     SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                                                   13425-4
         8.     Make final connections to the data logger.
         9.     Provide a cord and plug for the data logger.
         10.    Use heat shrink on wire terminations.
         11.    Label each wire a minimum of one inch from end, identifying cable.
         12.    Where required, use 3M Scotchlok type interconnects. Wire-nuts are not allowed.
         13.    Program the data logger in accordance with the Programming Guide
                a.     Configure channel functions. Set each channel to the modbus master protocol.
                b.     Configure channel parameters. Set proper register settings for each channel.
                c.     Configure channel names and units. Channels are reserved and should be configured as shown be-
                       low.




         14.    Verify closure of the digital inputs on the data logger.
         15.    Verify that data logger demand display matches the EMS.
         16.    Verify that all channels are monitored accurately.
         17.    Reports: Provide load report in Microsoft Excel.
                a.     A blank load report will be provided by the Owner.
                b.     Submit report as a PDF document and send to Energy ICT: walmart@energyict.com.
                c.     Provide screen captures as follows:
                       1)     Configuration channel parameters.
                       2)     Configuration channel functions.
                       3)     Status page.

END OF SECTION




June 10, 2009                                                               SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                                             13425-5
                                         BLANK PAGE




June 10, 2009                                         SUB-METERING INSTRUMENTATION
Wal-Mart #1653 - Weston, West Virginia                                       13425-6

				
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