Bard MULTI-TEC W42ACE Series Service Instructions Manual page 21

MULTI-TEC Wall-Mount Unit Control Board Terminals
Terminal
Rx+/Tx+
Rx-/Tx-
DI1
DI2 Dirty Filter Switch
DI3 High Pressure (CCM)
DI4 Low Pressure Switch
DI5
DI6 Damper Blade Switch
DI7
GND Digital Ground
B1 Mixed Air Temperature Sensor
B2 Outdoor Air Temperature Sensor
B3 Return Air Temperature Sensor
B4
B5 Outdoor Humidity Sensor
B6
B7 Freeze Temperature Sensor
GND Analog Ground
+VDC 24VDC to Outdoor Air Sensor
B8 Suction Temperature Sensor
B9 Suction Pressure Sensor
Y1
Y2 2-10VDC to Damper Actuator
Y3
GND
C1
NO1
NO2
NO3
C2
NO4 Stage 1 Heating
NO5 Stage 2 Heating
NO6
NO7
C7
NC7
C8
NO8
NO9
GO 24VAC Ground
G
TABLE 4
Function
Unit Disable
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Ground
24VAC+
Cool 1 Out
Not Used
Reheat Valve
24VAC+
Not Used
Blower 1
24VAC+
Not Used
Not Used
Blower 2
Blower 3
24VAC Hot
Type
Communication
Communication
Digital
Digital
Digital
Digital
Digital
Analog Input 10K Ohm Curve J
Analog Input 10K Ohm Type
Analog Input 10K Ohm Curve J
Analog Input
Analog Input 10K Ohm Curve J
Analog Input 10K Ohm Curve J
Analog Input
Power
Relay Output
Power
Relay Output
Relay Output
Relay Output
Relay Output
Relay Output
Form
N/C
N/C
N/C
N/C
N/C
Manual 2100-725C
Page 21 of 39