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IM 934-5
Digital Control Board with Standby
Power – Wiring Diagram
The standby power connections, L1 STBY and L2 STBY are
meant to run the indoor motor at a separate voltage from the
other motors, compressor and outdoor motor. When used as
such, the jumpers, JH1 and JH2, must be cut. This renders
L1 & L2 and L1 STBY and L2 STBY isolated from each
other.
If there is no need to run the motors at a separate voltage the
L1 = L1 STBY and L2 = L2 STBY. Therefore one voltage is
used to run all motors.
If the jumpers are accidentally cut, then the connections can
be spliced to substitute for the missing jumpers.
Legend
DM
=
Damper Motor
HYV =
Hydronic Valve
CM
=
Compressor Motor
IFM
=
Indoor Fan Motor
OFM =
Outdoor Fan Motor
HFLO =
Heat Fan Lockout Sensor
OCS =
Outdoor Coil Sensor
OAS =
Outdoor Air Sensor
ICS
=
Indoor Coil Sensor
IAS
=
Indoor Air Sensor
LUI
=
Local User Interface
REV =
Reversing Valve
IR
=
IR Receiver Board (AP7810)
C1
=
Indoor Motor Capacitor
C2
=
Outdoor Motor Capacitor
C3
=
Compressor Capacitor
MP
=
Motor Protector
Note:
The gray tinted areas in the wiring diagram; are options available only with the premium control board.
For the latest drawing version refer to the wiring diagram located on the inside of the controls access panel of the unit.
Wire Color Voltage
WH
120V
RD
208V
OR
240V
BN
277V
Table A
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