Manual
2100-695
Page
39 of 54
Terminal
Function
Type
Form
Rx+/Tx+
Communication
Rx-/Tx-
Communication
DI1
Unit Disable Relay/Switch
Digital
N/C
DI2
Dirty Filter Switch
Digital
N/C
DI3
Compressor Alarm Relay
Digital
N/C
DI4
Power Loss Relay (if used)
Digital
N/C
DI5
Not Used
DI6
Damper Blade Switch
Digital
N/C
DI7
Airflow
Digital
N/C
GND
Digital Ground
B1
Liquid Line Temperature Sensor
Analog Input
10K Ohm Curve J
B2
Outdoor Air Temperature Sensor
Analog Input
10K Ohm Type III (AN)
B3
Return Air Temperature Sensor
Analog Input
10K Ohm Curve J
B4
Supply Air Temperature Sensor
Analog Input
10K NTC Thermistor
B5
Outdoor Humidity Sensor
Analog Input
4mA to 20mA
B6
Dust Sensor Board
Analog Input
0-5VDC
B7
Suction Temperature Sensor
Analog Input
10K Ohm Curve J
GND
Analog Ground
+VDC
24VDC to Outdoor Humidity Sensor
B8
Liquid Pressure Transducer
Analog Input
.5VDC to 4.5VDC
B9
Suction Pressure Transducer
Analog Input
.5VDC to 4.5VDC
Y1
Blower Motor Signal
Analog Output
0-10VDC
Y2
Damper Actuator Signal
Analog Output
0-10VDC
Y3
Condenser Fan Motor Signal
Analog Output
0-10VDC
GND
Ground
C1
24VAC+
Power
NO1
to CCM "Y"
Relay Output
NO2
Compressor Staging Solenoid
Relay Output
NO3
Not Used
C2
24VAC+
Power
NO4
Stage 1 Heating
Relay Output
NO5
Not Used
NO6
Not Used
NO7
Not Used
C7
Not Used
NC7
Not Used
C8
24VAC+
Power
NO8
Dirty Filter Light
Relay Output
GO
24VAC Common
G
24VAC Hot
TABLE 10
FUSION-TEC WR Series Wall-Mount Unit Control Board Terminals