Figure 55 Wall-Mount Unit Control Board - Bard FUSION-TEC HR35BPA Service Instructions Manual

FUSION-TEC HR Series Wall-Mount Unit Control Board 8301-068-002*
Unit Disable
Dirty Filter Switch
Compressor Alarm Relay
Power Loss Relay (if equipped)
Damper Blade Switch
Airflow Switch
Digital Ground
Liquid Line Temp Sensor
Outdoor Air Temp Sensor
Return Air Temp Sensor
Supply Air Temp Sensor
Outdoor Humidity Sensor
Dust Sensor Board
Suction Temp Sensor
Analog Ground
24VDC to Outdoor Humidity Sensor
Liquid Pressure Transducer
Suction Pressure Transducer
Blower Motor Control Signal
Damper Actuator Control Signal
Condenser Fan Motor Control Signal
* Asterisk represents letter at end of part number that designates software version (Example: 8301-068-002A).
Manual 2100-694B
Page 38 of 62
5VDC
Micro USB
DI1
DI2
DI3
DI4 Control
Stand-by
DI5
DI6
DI7
GND
B1
B2
B3
B4
B5
B6
B7
GND
+Vdc
B8
B9
Ground
GND
Y1
Y2
Y3
Expansion Valve:
Purple, Yellow – 40 ohms
Red/White – 40 ohms
Red/Green – 40 ohms
White/Green – 80 ohms
Blue/Yellow – 83 ohms
FIGURE 55
FieldBus2
24VAC Hot 24VAC Common
Jumper
EEV1
+ Communication Wire
– Communication Wire
24VAC +
C1
To CCM Y
NO1
Compressor Staging
NO2
NO3 Solenoid
24VAC +
C2
Stage 1 Heat
NO4
NO5
Dust Sensor Enable
NO6
Unit Fail (Open on Fail)
NO7
Unit Fail Common
C7
Unit Fail (Close on Fail)
NC7
24VAC +
C8
Dirty Filter Light
NO8
NO9