Lennox CBX25UH Series - Low Voltage Wiring Diagrams; Cooling-Only Wiring; Heat-Only Wiring; Cooling with Electric Heat Wiring

Page 17
Wiring Diagrams
R
G
AIR
CONDITIONER
UNIT
R
R
G
G
BU
W
W
BK
COOLING‐ONLY APPLICATION
AIR HANDLERTHERMOSTAT
HEAT‐ONLY APPLICATION
AIR HANDLERTHERMOSTAT
COOLING APPLICATION WITH
ELECTRIC HEAT
AIR HANDLERTHERMOSTAT
HEAT PUMP APPLICATION WITH
ELECTRIC HEAT
NOTE - Connect common wire only if required (Refer to the appropriate thermostat installation instructions)
BU
BU
SEE
NOTE
SEE
NOTE
SEE
NOTE
Y
Y
AIR CONDITIONER
UNIT
R
G
BU
W
BK
CONNECT COMMON
WIRE ONLY IF
REQUIRED
(REFER TO THE
APPROPRIATE
THERMOSTAT
INSTALLATION
INSTRUCTIONS)
AIR HANDLER
THERMOSTAT
HEAT PUMP
UNIT
Figure 30. Low Voltage Connections (3-Speed PSC Motor) - Field Wiring