White Rodgers 1F92 Operating Instructions Manual page 13

SYSTEM E C
System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup
Heat Pump 3** Emergency 24 Volt
mode (Common)
1st stage
** If system does not provide connection to E, jumper W2 to E to provide Aux heating in emergency mode.
THERMOSTAT TERMINALS (Lower) THERMOSTAT TERMINALS (Lower) THERMOSTAT TERMINALS (Lower) THERMOSTAT TERMINALS (Lower) THERMOSTAT TERMINALS (Lower)
R W3/A1 W2
24 Volt Not Used Heat mode
(Hot) 2nd stage. gency mode
Emergency
mode
2nd stage P=All other
Installation
E2/P W1 Y2
E2=Emer- Heat mode No Output
1st stage
constant
output.
modes
constant
output
11
Y1 B O
Cool mode Energized in Energized in
1st stage Heat, Off Cool mode
Emergency
mode
G
Blower/Fan
Energized on
call for Heat
and Cool