Emerson 1F92 - Manual (Page 13)

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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
System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup
Heat Pump 3** Emergency 24 Volt 24 Volt Not Used Heat mode E2=Emer- Heat mode No Output Cool mode Energized in Energized in Blower/Fan
mode (Common) (Hot) 2nd stage. gency mode 1st stage 1st stage Heat, Off Cool mode Energized on
1st stage Emergency constant Emergency call for Heat
mode output. mode and Cool
2nd stage P=All other
modes
constant
output
** If system does not provide connection to E, jumper W2 to E to provide Aux heating in emergency mode.
Installation