Facility Design Guidelines - Facilities Management - University of ...

APPENDIX C – UTILITY METERING REQUIREMENTS
Electricity
Application Meters shall be revenue-grade and have MODBUS/TCP interfaces accessible via direct
Ethernet connection or via local metering bus. Substations and building primary
switchgear shall have power quality meters. Building sub meters shall have energy
meters. All meters shall have a local display of demand and totalized consumption.
Connectivity Installations shall be digitally integrated into the SCADA system via MODBUS/TCP
protocol over Ethernet. Meters on building primary feeders will also be interfaced to
the building automation system (BAS) for energy management use. At a minimum,
apparent power, reactive power, total power, energy, and per-phase volts and current
shall be mapped to the SCADA system. Consumption reading in the SCADA system
and BAS shall match the meter's local display.
Approved
Meters
Domestic Water
Application
Connectivity
The contractor shall be responsible for proper installation of the meter and for
enabling energy consumption calculations during construction before the service is
turned on, unless ordered by the Director of Utilities. The E&U department will
estimate consumption during construction using design maximum values when meter
data is not available.
Temporary meters for construction use can be supplied by the E&U metering
department without connection to the BAS and will be read monthly. The meter must
be returned to the metering department within 10 days of service disconnection or
construction contractor will be billed for a replacement meter.
Power Quality Meters:
· Square D CM4000, PM870, or equivalent
· ION 7650/7550 series
· GE PQM II series
Energy Meters:
· Square D energy meter or equivalent
· ION 6200 series
Meters shall be EPDM rubber-lined electromagnetic flow meters on all services unless
deemed "low consumption" by the University's metering department. Low
consumption meters will be turbine or positive displacement. All meters shall have
local display of volumetric flow rate and totalized consumption.
Installations shall be digitally integrated into the building automation system (BAS) via
BACNet protocol. Totalization, volumetric flow rate, and diagnostic data shall be
mapped into the BAS. Totalization value in the BAS shall match the meter's local
APPENDIX C – UTILITY METERING REQUIREMENTS 281