SECTION 1 – GENERAL



SECTION 1 – GENERAL

1. DESCRIPTION

1. Provide electronic submetering system to meter electric consumption for each tenant or equipment load in accordance with the Contract Documents.

2. ELECTRONIC POWER METERING

1. Provide electronic power metering where indicated complying with all requirements below. Meter(s) shall be manufactured Quadlogic Controls Corporation, 33-00 Northern Blvd, Long Island City, NY 11101, 212.930.9300, , or approved equal.

2. The meters shall be manually readable using local Liquid Display (LCD) via push-button and automatically (remotely) readable utilizing Frequency-Hopping Spread-Spectrum Power Line Communications (PLC), PLC/DLC (dedicated wiring), RS-485, Modbus, or BACnet.

3. The metering system shall consist of the Quadlogic Model MiniCloset-5c, MC-5N, RSM-5, RSM-5c, S-20, S-10N, S10T and ST-5 Transponder(s) depending on the type of load and meter location.

1. MiniCloset-5c high-density meters may be configured to meter eight (8) 3Ø circuits, twelve (12) 2Ø circuits, or twenty-four (24) 1Ø circuits.

2. MiniCloset-5c high-density meters may be integrated in the distribution panels and factory-wired by the distribution panel manufacturer.

3. MiniCloset-5N, listed for NYS PSC Residential submetering applications is configured for twelve (12) 2Ø circuits.

4. Meters shall be configured for use on 120/240V split-phase 3W, 120/208V (single-phase 3W network or 3Ø 4W), 277/480V (3Ø 4W), 347/600V (3Ø 4W), 480V Delta (3Ø 3W), 600V Delta (3Ø 3W) nominal systems or as indicated on the drawings.

5. For COMMERCIAL or INDUSTRIAL Applications: kW demand shall be measured and logged every fifteen [15] minutes. (Demand is factory configured in block intervals. Rolling (overlapping) time interval demand may be specified as an option.) Demand shall be logged with the time and date at which it occurs. The meter is classed as a mass-memory interval meter (meters which record and store energy use by time.) The demand and optional time-of-use (TOU) schedules shall be factory programmed and stored in each meter. Daily peak demand shall be capable of being read by a remote computer.

6. For RESIDENTIAL Applications: kW demand shall be measured and logged every sixty [60] minutes. (Demand is factory configured in block intervals. Rolling (overlapping) time interval demand may be specified as an option.) Demand shall be logged with the time and date at which it occurs. The meter is classed as a mass-memory interval meter (meters which record and store energy use by time.) The demand and optional time-of-use (TOU) schedules shall be factory programmed and stored in each meter. Daily peak demand shall be capable of being read by a remote computer.

7. The meter shall have the following testing and certification:

1. UL/CUL recognized

2. Meets or exceeds applicable requirements of ANSI c12.20, ANSI/IEEE c37.90.1, c37.90.2, Measurement Canada.

8. Each meter shall connect to the electrical load being measured with a direct voltage tap, up to 600VAC, and with 0.1A or 5A secondary split or solid-core current transformers.

9. Monitoring:

1. Provide true RMS measurement of current, volts, %THD, kW, kWh, kVA, kVAR, power factor.

2. The meter shall have an accuracy of ±0.5% or better.

3. OPTIONAL: Meters may be specified with ±0.2% accuracy.

10. User Interface:

1. Reading shall be displayed on a local LCD display. The display shall have two rows of sixteen [16] characters per row. The consumption shall be up to six digits.

2. Provide an IEC-type optical data port capable of connection to a portable computer.

11. The metering system shall be a fully automated, microprocessor-based electric utility measurement system. The system shall be capable of measuring and recording the usage of electricity and shall be capable of communicating the data to an optional on-site or remote computer. (i.e. the billing computer) via wired network, telephone modem, IP adapter, or other means of communication.

12. The meter shall not depend on battery power for maintaining functionality. Meter shall monitor all metering parameters and perform communication tasks using non-volatile flash memory. On-board battery shall be only be used during power failure to maintain time, log incoming pulses (if applicable), and to store data acquired within the incomplete interval at the time of power failure.

13. OPTIONAL: Each RSM-5 meter may be specified to log up to four [4] dry-contact, Form A pulse inputs to automate the reading of other utilities such as gas, water, fuel, BTU’s or other. MiniCloset-5c may be specified to log up to forty-eight [48] pulse inputs.

14. OPTIONAL: Each meter may be equipped with KYZ pulse output for demand input to a BMS system.

15. Each meter shall be equipped with a clock/calendar that automatically accommodates leap years. The clock/calendar shall be backed-up by a battery and continue operating during power outages. The time and date shall be automatically synchronized by the Scan Transponder(s) and capable of being reset by a remote computer.

16. Each meter shall be complete with internal current transformer (C.T.) termination, shorting device (where applicable) and fuse block.

17. Revenue related metering parameters (e.g. demand intervals) shall be permanent and stored in each meter. It shall not be possible to change metering parameters through unauthorized access to the system.

18. Provide Phase Diagnostic Registers for amperage, voltage, watts, and line frequency. Phase Diagnostics shall include voltage, VAR phase shift, accumulated kWh and kVAR, and instantaneous amps, watts, VAR’s, VA’s, phase angle (degrees displacement between current and voltage waveforms) and Power Factor, for installation verification and Power Quality monitoring.

19. Provide phase diagnostic registers that include time, date, and the number of times the time has been changed, number of power-downs, power-ups, and start-ups with time and date of each occurrence, and the accumulated peak demand has been reset, and the time and date of the last reset. Meters that communicate via Power Line Communications (PLC) shall include counts of properly received messages, rejected messages, and the number of transmissions without reply.

20. On-board Memory Storage:

1. The meter shall maintain a minimum 60-day log of daily kWh (per Time-of-Day (TOU) if applicable) consumption, interval data, and peak demand (kW) readings time and date stamped. The consumption recorded shall be the reading at the end of the TOU period at the end of each day. The peak demand recorded shall be the peak demand for the TOU period for that day.

2. Each meter shall maintain a minimum 60-day logging capacity consisting of fifteen (15) minute or hourly demands with time and date stamp.

3. Memory shall be non-volatile.

21. Control power for the meter shall be obtained via the monitored voltage connections. A separate control power input is not allowed.

22. Communications Interface:

1. Where indicated in the drawings, the system shall communicate with a remote computer using one or more of the systems noted below. The preferred method shall be Power Line Communications (PLC).

2. The meter shall communicate over the electrical power wiring to a Scan Transponder via bi-directional, frequency-hopping, spread-spectrum power line communications. These signals shall be capable of passing through a single 600:120V or 480:120V transformer. The Scan Transponder and each meter shall select the best available combination of phase, frequency range, and baud rate to communicate at any given time.

3. Signal Coupling Unit(s) shall be provided when required to bypass multiple transformers or harmonic suppression (filtered) transformers.

4. OPTIONAL: Specify RS-485 serial port for direct connection to a PC or IP adapter.

5. OPTIONAL: Meters may be equipped with a cellular modem.

6. OPTIONAL: Meters may be configured for MODBUS communications w/RS-485.

7. OPTIONAL: Meter system may be equipped with BACnet communications adapter.

8. OPTIONAL: S10T meters are equipped with ambient temperature sensors. Optional remote display.

23. ST-5 Scan Transponder:

1. Scan Transponder(s) shall be installed to collect data from meters on a daily basis and provide a central data access point.

2. All communication shall be direct between a Scan Transponder and each meter, and is controlled by the Scan Transponder. Meters will not repeat messages from other meters, and message routing will not be determined by meters.

3. A Scan Transponder shall be provided for every 240 metering points (subject to vary depending on kW logging frequency and number of pulse-inputs logged).

1. One Scan Transponder shall be provided for each utility transformer or electrical service.

2. Installing contractor shall provide required connection point with 3Ø fused service disconnect at voltage connection for Transponders per manufacturer’s specifications.

4. Scan Transponder shall begin each meter communication with verification of meter ID and clock check to ensure data integrity.

5. The Scan Transponder shall store downloaded meter values in flash memory and shall hold thirty (30) days of records minimum.

6. Multiple Scan Transponders shall be interconnected by Data Link (RS-485).

7. Where indicated on manufacturer’s shop drawings, meter(s) shall be connected to the Scan Transponder by hard-wired Data Link (RS-485 or PLC/DLC).

8. Where indicated on the manufacturer’s shop drawings, specify an IP adapter for remote data access. (Owner provides fixed IP network drop.)

9. Where indicated on the manufacturer’s shop drawings, specify a cellular modem, provided by vendor, for remote data access.

10. Scan Transponders are typically connected to the main distribution panel(s) for each electrical service.

11. Scan Transponder points of connection shall be approved by manufacturer and installed per manufacturer’s guidelines. Upon request, manufacturer shall provide a project-specific design for the Scan Transponder system.

24. Software:

1. OPTIONAL: Quadlogic’s IQ software shall be capable of reading the system, downloading meter and pulse data, and generating energy bills for electricity. Pulse data may be converted and billed for consumption of gas, water, fuel, BTU’s, etc. Data may be imported to spreadsheet programs such as Excel for analysis and graphing.

2. OPTIONAL: Quadlogic’s IQ Basic software and optical probe shall be capable of reading individual meters via the meter optical port, for walk and read applications, when no remote meter system is installed.

3. OPTIONAL: Quadlogic’s IQ2 software provides rich graphical display and analysis for energy monitoring by facility engineer, property manager, or authorized tenant(s), via internet.

3. PART 2 – EXECUTION:

1. INSTALLATION:

1. A circuit breaker or disconnect switch shall be provided at the voltage connection for each meter and each Scan Transponder to allow safe access to the devices for service without powering down the entire panel.

2. Where utilized, S-20 200A meters require tenant disconnect to be on the line side of the electric meter.

3. All meters shall be installed according to the manufacturer’s installation instructions.

2. SYSTEM COMMISSIONING AND START-UP:

1. Contractor to provide third party testing of power metering system, “commissioning”. The owner’s submetering service provider or manufacturer’s service group can provide third party testing. Commissioning shall be performed prior to tenant occupancy as follows:

1. Installing contractor records the “cross-reference” information including meter serial number, meter point (circuit), apartment number.

2. Verify power to the meter.

3. Verify meter serial number inside the meter.

4. Open panel to inspect c.t’s.

5. Verify c.t. ratio and record cross-reference information for each meter.

6. Review phase diagnostic fields to confirm correct meter installation.

7. For residential installations:

1. Confirm cross-reference. This may be done by having one technician turn on a known load in the apartment, on each phase. Have a second technician at the metyer verify the phase diagnostics for the assigned apartment unit, and for the known load.

2. After all phases have been checked and loads are still connected, open (turn-off) the breaker serving the apartment and confirm that all loads are disconnected. This completes the commissioning and cross-reference verification.

8. Test results: Submit two copies of the test results to the Owner for review.

9. Upon approval by owner or general contractor, submit two copies of test results.

10. Third party testing shall include verification of Power Line Communications (PLC) between all meters and Scan Transponder(s).

11. Verify remote data access via cellular modem or IP adapter (internet).

12. Verify that all Scan Transponders interconnected by RS-485 network are communicating properly.

3. FOR NEW YORK STATE RESIDENTIAL SUBMETERING APPLICATIONS:

1. Manufacturer shall provide NYS (New York State) PSC (Public Service Commission) Submetering Application filing service on behalf of Owner. Manufacturer shall provide PSC Submetering Application Case number to owner.

2. Manufacturer shall provide meter commissioning upon installation. Provide report indicating correct installation and meter function, load test, and cross-reference list including meter S/N and apartment # or load designation. Only manufacturer or manufacturer-certified meter commissioning services shall be acceptable.

3. Manufacturer shall provide NYS PSC-required annual in-service meter accuracy testing per current PSC regulations.

Note that meter and system specifications, functions, and features are subject to change without prior notice.

END OF SECTION

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