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HEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTS
HEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTS

HEAT PUMP TERMINAL OUTPUTS

THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)
THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)
THERMOSTAT TERMINALS (Lower)
SYSTEM E C R W3/A1 W2 E2/P W1 Y2 Y1 B O G
Single-stage compressor system; gas or electric backup
Heat Pump 1* Emergency 24 Volt 24 Volt Not Used Heat mode E2=Emer- Heat mode No output Heat and Energized in Energized in Blower/Fan
mode (Common) (Hot) 3rd stage. gency mode 2nd stage Cool mode Heat, Off Cool mode Energized on
1st stage Emergency constant 1st stage Emergency call for Heat
mode output. (compressor) mode and Cool
2nd stage P=All other
modes
constant
output
THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)
THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)
THERMOSTAT TERMINALS (Lower)
SYSTEM E C R W3/A1 W2 E2/P W1 Y2 Y1 B O G
Multi-stage or two compressor system; gas or electric backup
Heat Pump 2* Emergency 24 Volt 24 Volt Not Used Emergency E2=Emer- Heat mode Heat and Heat and Energized in Energized in Blower/Fan
mode (Common) (Hot) mode gency mode 3rd stage Cool mode Cool mode Heat, Off Cool mode Energized on
1st stage 2nd stage constant 2nd stage 1st stage Emergency call for Heat
output. (compressor (compressor mode and Cool
P=All other 2) 1)
modes
constant
output
* If system does not provide connection to E, jumper W1 to E to provide Aux heating in emergency mode.
THERMOSTTHERMOST
THERMOSTTHERMOST
THERMOSTAA
AA
AT T
T T
T TERMINTERMIN
TERMINTERMIN
TERMINALS (Upper)ALS (Upper)
ALS (Upper)ALS (Upper)
ALS (Upper)
LPH
Malfunction Light Not Used