WSHP-SVX13C-EN
47
Variable-Speed WSHP Tracer™ UC400 Controller
I/O Definitions
Hard-wired input/outputs for the variable-speed WSHP
UC400 controller are defined in
Table 43, p. 47
.
Table 43. UC400 hard wired input/output definitions
Connection type
UC400
terminal
Variable-speed WSHP
configuration
Connection
specifications
(a)
Valid range
Analog Inputs
AI1
Zone Temp Sensor/Timed Override and
Timed Override Cancel
10 k
Ω
Thermistor
-40-212°F
AI2
Zone Setpoint
0-1000
Ω
40-115°F
AI3
Fan Mode (Control Auto/Off)
AHRI Audit Test Mode Initiate
200-100 k
Ω
Auto/Off
Test Mode Active/Inactive
AI4
Heat Sink Temperature Sensor
10 k
Ω
Thermistor
-40-212°F
AI5
Entering Water Temperature Sensor
10 k
Ω
Thermistor
-40-212°F
Universal Inputs
UI1
Relative Humidity Sensor
4–20 mA
0-100%RH
UI2
Leaving Water Temperature
10 k
Ω
Thermistor
-40-212°F
Binary Inputs
BI1
Local Occupancy
24 Vac detect
Normally Open
Occ./Unocc
BI2
Condensate Overflow
Normally Closed
Okay/Failed
BI3
Compressor Protection Status – Discharge
Line Thermostat/Low/High Pressure Cut Out/
Overload Relay Status
Normally Closed
Okay/Failed
Binary Outputs
(Relay)
(b)
BO1
Supply Fan On/Off Control
2.88 A @24 Vac pilot duty
Energized/De-Energized
BO2
Isolation Valve
Energized/De-Energized
BO3
Compressor 1
Energized/De-Energized
Binary Outputs
(Triac)
(c)
BO4
NA
0.5 A max @24–277 Vac,
resistive and pilot duty
Energized/De-Energized
BO5
NA
Energized/De-Energized
BO6
NA
Energized/De-Energized
BO7
Reversing Valve
Energized/De-Energized
BO8
NA
Energized/De-Energized
BO9
NA
Energized/De-Energized
Analog Outputs/
Binary Inputs
AO1/ BI4
Supply Fan Motor Control Signal
PWM Output: 80Hz
0-100% Duty Cycle
AO2/ BI5
Variable Speed Compressor Control Signal
0-10Vdc
0-100% Compressor Output
Communication
IMC +
NA
Comm.
NA
IMC -
NA
Comm.
NA
LINK +
BACnet Comm. +
Comm.
NA
LINK -
BACnet Comm. -
Comm.
NA
Pressure Inputs
PI1
Test Mode Input
3-Wire:+5Vdc, Signal,
Gnd
0Vdc/5Vdc
(Normal/Test Mode Active)
PI2
Feedback from Compressor VFD
3-Wire:+5Vdc, Signal,
Gnd
0Vdc/5Vdc
(Okay/Drive Disabled or Failed)
(a) For more information on the UC400 connection specifications, refer to the UC400 installation sheet; Literature Order Number X39641064-01.
(b) For Triac output control, 24VAC will be supplied to the Triac Supply input to be used for the Triac outputs.
(c) 24 Vac will be connected to the binary outputs and the UC400 will provide a contact closure for output control.
Содержание Axiom VSHE024
Страница 63: ...WSHP SVX13C EN 63 Control Wiring Figure 32 208V single phase wiring with ECM option...
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