Wiring Diagrams - Lennox CBX25UH Series Installation And Service Procedure

Wiring Diagrams

THERMOSTAT
R
G
SEE
BU
NOTE
Y
COOLING‐ONLY APPLICATION
THERMOSTAT
R
G
W
BK
SEE
BU
Y
NOTE
AIR CONDITIONER
COOLING APPLICATION WITH
ELECTRIC HEAT
NOTE - Connect common wire only if required (Refer to the appropriate thermostat installation instructions)
Figure 27. Low Voltage Connections (3-Speed PSC Motor) - Field Wiring
AIR HANDLER
AIR
CONDITIONER
UNIT
AIR HANDLER
CONNECT COMMON
WIRE ONLY IF
REQUIRED
(REFER TO THE
APPROPRIATE
THERMOSTAT
INSTALLATION
INSTRUCTIONS)
UNIT
THERMOSTAT
SEE
NOTE
HEAT‐ONLY APPLICATION
THERMOSTAT
HEAT PUMP APPLICATION WITH
ELECTRIC HEAT
Page 18
AIR HANDLER
R
G
BU
W
HEAT PUMP
AIR HANDLER
R
G
BU
BK
W
UNIT