Manual 2100-695C
Page
40 of 56
Terminal
Function
Type
Form
Rx+/Tx+
Communication
Rx-/Tx-
Communication
DI1
Unit Disable Relay/Switch
Digital Input
N/C
DI2
Dirty Filter Switch
Digital Input
N/C
DI3
Compressor Alarm Relay
Digital Input
N/C
DI4
Power Loss Relay (if used)
Digital Input
N/C
DI5
Not Used
DI6
Damper Blade Switch
Digital Input
N/C
DI7
Airflow
Digital Input
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
GND
Ground
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
C1
24VAC+
Power
NO1
to CCM "Y"
Relay Output
NO2
Compressor Staging Solenoid
Relay Output
NO3
Not Used
C4
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
NO9
Not Used
GO
24VAC Common
G
24VAC Hot
TABLE 11
FUSION-TEC WR Series Wall-Mount Unit Control Board Terminals
