Download section 23 09 00 – building automation system

SECTION 23 09 00 – BUILDING AUTOMATION SYSTEM AND CONTROL FOR HVAC
This is supplemental language for a spec. This is not an all inclusive spec. This is language that is
meant to be copied and pasted into an existing spec.
PART 1 - GENERAL
PART 2 - PRODUCTS
2.1
Digital Energy Monitors
A.
Provide electric consumption meters where shown on the drawings or called for in the
sequences of operations.
B.
Manufacturer:
1.
Siemens MD Model Energy Meter
2.
Siemens current transformers
C.
Meters shall provide real-time electric energy measurement.
1.
Voltage: 80 to 600V
2.
Choice of 3-phase or single phase from same unit
3.
Parameter update rate of 0.5 seconds
4.
Outputs: 2 pulse, configurable
5.
Waveform Sampling: 12kHz voltage and current
6.
UL listed Standard 61010-1, cUL certified to CAN/CSA Standard C22.2 No. 61010-1
and CE Low Voltage and EMC Directives
7.
Testing: ANSI C12.20-2010
8.
Accuracy: ANSI C12.20-2010 Class 0.2. Where differences exist between the
requirements of this Standard and C12.1 and C12.10, the requirements of this Standard
shall prevail.
9.
Resolution: 0.01 Amp, 0.1 Volt, 0.01 watt, 0.01 VAR, 0.01 VA, 0.01 Power Factor
depending on scalar setting
10. Power types: Single Phase, Three Phase-Four Wire (WYE), Three Phase-Three Wire
(Delta)
11. 3 voltage channels: 80 to 346V AC Line-to-Neutral, 600V Line-to-Line, CAT III
12. Maximum current input: 666 mVac (200% of current transducer rating)
13. Measurement rating: True RMS using high-speed digital signal processing (DSP)
14. Waveform sampling: 12 kHz voltage and current
D.
Current Transformers
1.
Meters shall be provided with CTs as a system such that the CTs are tested and known to
be compatible with the meter.
2.
All current transformers shall be internally shunted for intrinsically safe operation on
energized conductors.
3.
Output: 333 mV at rated current
4.
Up to 5000A service
5.
6.
7.
The meter shall accept Rogowski type CTs – flexible rope type CTs to wrap around
multiple conductors or bus bars.
The meter shall have embedded Rogowski Coil CT amplifier/integrator circuitry, so there
is no need to provide external power to the CTs.
The meter shall accept mix and match split-core and Rogowski-style CT’s on the same
meter.
E.
Power: Power for the meter shall be sourced from the metered lines.
1.
Meters powered from the metered lines are allowed to be mounted inside the power panel
as long as the meter is rated for the maximum voltage of the panel.
2.
Separate low voltage power wires shall not be allowed inside of a high voltage (>240V)
enclosure. Meters that require separate power supplies shall be mounted outside of the
high switch panels with provisions to separate the metered lines and the meter power
input wires.
3.
Provide 0.5A fuse protection on the power to the meter.
F.
Installation:
1.
Provide a means for the installer to check that the wiring is correct without using the
setup software or using the meter’s built-in setup configuration. The MD Model uses
LEDs to let the installer know that the wiring is correct or not.
2.
The meter shall automatically adjust for CT orientation—greatly reducing setup time and
all but eliminating installation errors.
G.
Communication:
1.
Provide an RS-485 communication connection. The unit’s default communication shall
be BACnet MS/TP communication.
2.
The Meter shall be BACnet Testing Labs (BTL) certified as a smart sensor (B-SS)
device.
3.
Baud rate: 78,500
4.
The meter shall provide ¼ unit loads on the RS485 so that up to 127 meters may be
connected to a single BACnet client for monitoring and recording power usage at
multiple locations within a single site. Meters with ½ units loads shall be limited to 64
meters on a subnetwork.
5.
Modbus shall be an option only if the manufacturer of the meter provides a BACnet
gateway to translate to the BAS native communication protocol.
6.
If Ethernet networking is an option on the meter, then the BACnet implementation shall
be BACnet/IP. Modbus over Ethernet shall be an option only if the meter provides a
BACnet gateway to translate to the BAS native communication protocol.
H.
Diagnostics
I.
Minimum Data Monitoring:
1.
Total Net True Energy (kWh)
2.
Instantaneous Total True Power (kW)
3.
Peak Demand (adjustable window) (kW)
4.
Maximum Instantaneous Power (kW)
5.
Minimum Instantaneous Power (kW)
6.
Total Net Reactive Energy (kVARh)
7.
Total Reactive Power (kVAR)
8.
Total Apparent Energy (kVAh)
9.
Total Apparent Power (kVA)
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
J.
System Displacement Power Factor (dPF)
System Apparent Power Factor (aPF)
Total Current in all phases (Amps)
Average Line—Line Voltage (Volts)
Average Line—Neutral Voltage (Volts)
Individual Phase—Phase Voltages
Line Frequency (Hz)
Individual Phases True Energy (kWh)
Individual Phases True Power (kW)
Individual Phases Reactive Energy (kVARh)
Individual Phases Apparent Energy (kVAh)
Individual Phases Reactive Power (kVAR)
Individual Phases Apparent Power (kVA)
Individual Phases Apparent Power Factor (aPF)
Individual Phases Displacement Power Factor (dPF)
Individual Phases Current (Amps)
Individual Phases Line to Neutral Voltages (Volts)
Individual Phases Line to Line Voltages (Volts)
Multiple Meters External Data Synchronization
Software
1.
Provide Window compatible software with USB cable to configure the meter and
interrogate the data in the meter.