Specifications

IM 934-5 Page 39 of 48
Digital Control Board without
Standby Power – Wiring Diagram
The standby power connections, L1 STBY and L2 STBY are
meant to run the indoormotor 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
Wire Color
V
oltage
WH
120V
RD
208V
OR
240V
BN
277V
Table A
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.