TROUBLESHOOTING
M
RED
BLOWER
RUN CAPACITOR
GRN
BLU
BRN
BRN
BLK
WHT
MOLEX
CONNECTOR
BLK
GRN
L2-WHT
L1-BLK
CHASSIS
GROUND
GND
CHASSIS
GROUND
BLK
WHT
WHT
BLK
BLK
WAGO
CONNECTORS
DPST RELAY
M
BLU
BLU
BLU
YLW
YLW
YLW
DAMPER
MOTOR
24VAC
TRANSFORMER
R
C
NOT
USED
ODT
INPUTS
OUTPUTS
POWER
W G
VENT
Gf
VENTILATION CONTROL
M
RED
BLOWER
RUN CAPACITOR
GRN
BLU
BRN
BRN
BLK
WHT
MOLEX
CONNECTOR
BLK
GRN
L2-WHT
L1-BLK
CHASSIS
GROUND
GND
CHASSIS
GROUND
BLK
WHT
BLK
WAGO
CONNECTORS
DPST RELAY
YLW
YLW
YLW
R
C
NOT
USED
ODT
INPUTS
OUTPUTS
POWER
W G
VENT
Gf
VENTILATION CONTROL
FIGURE 9
– MODEL 8140 INTERNAL SCHEMATIC
FIGURE 10
– MODEL 8141 INTERNAL SCHEMATIC
7