Figure 59 Fusion-Tec Wr Series Unit Control Board - Bard FUSION-TEC WR35BPA Service Instructions Manual

FUSION-TEC WR Series Wall-Mount Unit Control Board 8301-068-004*
Unit Disable Relay/Switch
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 Signal
Damper Actuator Signal
Condenser Fan Motor Signal
* Asterisk represents letter at end of part number that designates software version (Example: 8301-068-004A).
See Table 11 on page 40 for information on control board terminal functions.
FIGURE 59
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
FieldBus2
24VAC Hot 24VAC Common
Jumper
EEV1
+ Communication Wire
– Communication Wire
24VAC +
C1
To CCM Y
NO1
Compressor Staging
NO2
NO3 Solenoid
24VAC +
C4
Stage 1 Heat
NO4
NO5
NO6
NO7
C7
NC7
24VAC +
C8
Dirty Filter Light
NO8
NO9
Manual 2100-695C
Page 39 of 56