Robertshaw 9520 User Manual page 11

ROBERT SHAW HEAT PUMP THERMOSTAT CONVERSION TO COMFORTMAKER
NOTE 1: E AND W2 TERMINALS
JUMPERED AT THERMOSTAT
NOTE 2: W2 TERMINAL ON
COMFORTMAKER PCB CAPPED
NOTE 3: X TERMINAL ON
COMFORTMAKER PCB CAPPED
24 VAC, RETURN
R
COMPRESSOR CONTACTOR
Y
REVERSING VALVE [COOLING MODE]
O
FAN CONTACTOR CIRCUIT
G
2ND. STAGE HEATING CIRCUIT
W1
OUTDOOR THERMOSTAT [CAPPED]
W2
DEFROST SENSOR [CAPPED]
X
24 VAC, COMMON
C
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 HEIL-QUAKER
867.814 SERIES AND PH50 SERIES HEAT PUMP SYSTEMS
NOTE 1: E AND W2 TERMINALS
JUMPERED AT THERMOSTAT
NOTE 2: W2 TERMINAL ON
HEIL-QUAKER PCB CAPPED
24 VAC, RETURN
R
COMPRESSOR CONTACTOR
Y
REVERSING VALVE [COOLING MODE]
O
FAN CONTACTOR CIRCUIT
G
2ND. STAGE HEATING CIRCUIT [SEQUENCER 1]
W1
3RD. STAGE HEATING CIRCUIT [SEQUENCER 2]
W2
24 VAC, COMMON
C
THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR
FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS
CYC SERIES HEAT PUMP SYSTEMS
ROBERT SHAW HEAT PUMP THERMOSTAT
R Y1
R
Y1
11
O B G E
ROBERT SHAW HEAT PUMP THERMOSTAT
O B G E
W2
L C Y2
W2
L C Y2