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ROBERT SHAW HEAT PUMP THERMOSTAT CONVERSION TO LENNOX
CB19 HEAT PUMP SYSTEMS
ROBERT SHAW HEAT PUMP THERMOSTAT
LENNOX LOW VOLTAGE TERMINAL BOARD
R
O
Y1
B
G
E
W2
L
C
Y2
24 VAC, RETURN
R
COMPRESSOR CONTACTOR
Y
REVERSING VALVE [COOLING MODE]
O
FAN CONTACTOR CIRCUIT
G
EMERGENCY HEATING CIRCUIT
E
2ND. STAGE HEATING CIRCUIT
W1
SYSTEM MONITOR LED
L
24 VAC, COMMON
C
T
THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR
FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS
ROBERT SHAW HEAT PUMP THERMOSTAT CONVERSION TO LENNOX
HP19 AND HP20 HEAT PUMP SYSTEMS
ROBERT SHAW HEAT PUMP THERMOSTAT
R
LENNOX LOW VOLTAGE TERMINAL BOARD
V-VR
M
R
O
Y1
B
G
E
W2
L
C
Y2
24 VAC, RETURN
COMPRESSOR CONTACTOR
REVERSING VALVE [COOLING MODE]
FAN CONTACTOR CIRCUIT
F
EMERGENCY HEATING CIRCUIT
E
2ND. STAGE HEATING CIRCUIT
Y
24 VAC, COMMON
X
THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR
FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS
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