Robertshaw 9520 User Manual page 12

Digital non-programmable thermostat quick start installation
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ROBERT SHAW HEAT PUMP THERMOSTAT CONVERSION TO PAYNE
RELIANT AND ENDURA MODEL HEAT PUMP SYSTEMS
NOTE 1: W3 TERMINAL ON
PAYNE PCB CAPPED
24 VAC, RETURN
R
COMPRESSOR CONTACTOR
Y
REVERSING VALVE [COOLING MODE]
O
FAN CONTACTOR CIRCUIT
G
EMERGENCY HEATING CIRCUIT
E
2ND. STAGE HEATING CIRCUIT
W2
SYSTEM MONITOR LED
L
24 VAC, COMMON
C
3RD. STAGE HEATING CIRCUIT [CAPPED]
W3
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 RHEEM/RUUD
24 VAC, RETURN
R
COMPRESSOR CONTACTOR
Y
REVERSING VALVE [HEATING MODE]
B
FAN CONTACTOR CIRCUIT
G
EMERGENCY HEATING CIRCUIT
E
2ND. STAGE HEATING CIRCUIT
W2
SYSTEM MONITOR LED
L
24 VAC, COMMON
X
B
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
R
O
Y1
HEAT PUMP SYSTEMS
ROBERT SHAW HEAT PUMP THERMOSTAT
R
O
Y1
12
W2
B
G
E
W2
B
G
E
Y2
L
C
Y2
L
C

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