Orion System SA Controller - Manual (Page 69)

SA Controller Technical Guide
Index
69
U-Z
U
Units with 1 Digital Compressor and 1 ON/OFF
Compressor.........40
Units with 2 Digital Compressors.........42
Units with 2 Digital Compressors and 2 ON/OFF
Compressors (Dual Unit).........40,42
Units with 4 Digital Compressors (Dual Unit).........40,42
Unoccupied Cooling Mode.........39
Unoccupied Mode of Operation.........39
User-Confi gurable Relays.........37
V
VA Load Requirements.........10
VA Rating.........10
Variable Air Volume Unit
Overview.........5
Variable Frequency Drive Units.........18
VAVAV Terminal Box Compatibility.........51
VAV Dehumidifi cation.........5
VAV/Zone Controller
Alarms.........49
VAV/Zone System.........51
Vent Mode Operation.........39
VFD Fan.........50
VFD Signal.........18,19
VFD Supply Fan.........5
Voltage
Proper.........34
Voltage and Environment Requirements.........10
W
Warm-Up Mode.........39
Water Cooled Compressor Condenser.........41
Water Proof of Flow Failure.........48
Water Proof of Flow Input A.........38
Water Proof of Flow Input B.........38
Water Safeties.........5
Water Side Economizer.........39
Water Side Economizer Bypass Actuator Valve A.........38
Water Side Economizer Bypass Actuator Valve B.........38
Water Side Economizer Bypass Valve.........17
Water Side Economizer Operation.........5,39
Water Side Economizer Position.........50
Water Side Economizer Valve.........17
Water Side Economizer Valve Signal.........37
Water Side Economizer Wiring.........17
Water Side Economizer (WSE).........41
Water Source Heat Pump Applications.........44
Water Source Heat Pump Protection Module.........33
WattMaster Controls Technical Support.........53
Wet Contacts.........21
Wire
Belden #82760.........10
Wire Size
18-gauge.........10
Minimum for 24 VAC.........10
Wiring
12-Relay Expansion Module.........30
18-gauge.........10
24-gauge.........10
24 VAC-to-24 VAC.........35
Digital Room Sensor.........12
Entering Air Humidity Sensor.........24
Entering Air Temperature Sensor.........16
Entering Water Temperature Sensor.........15
GND-to-GND.........35
Important Considerations.........10
Indoor Wall-Mounted Humidity Sensor.........25
Modulating Cooling Device.........27,28
Modulating Heating Device.........26
Remote Supply Air Temperature Reset Signal.........13
SA Expansion Module.........20
Space Temperature Sensor.........13
Suction Pressure Transducer.........22
Supply Air Temperature Sensor.........14,15
Supply Fan VFD Signal.........18
Water Side Economizer.........17
Water Side Economizer Bypass Valve.........17
Water Side Economizer Valve.........17
Zoning Bypass Damper Actuator Signal.........18,19
Wiring Diagram
SA Controller.........11
Two Condenser Head Pressure Module.........32
Water Source Heat Pump Protection Module.........33
Wiring Diagrams
Two Condenser Head Pressure Module.........32
WSE Bypass A.........50
WSE Bypass B.........50
WSHP Protection Module.........5,33
Requirements.........10
Z
Zone Override
LED Blinks.........53
Zoning Bypass Damper.........5
Zoning Bypass Damper Actuator.........37
Diagram.........18,19
Zoning Bypass Damper Actuator Signal
Wiring.........18,19
Zoning System.........51