Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 110

WHITE RODGERS
TYPICAL 1F92-1, 1F92-6, 1F92-7, 1F58-910 THERMOSTAT, S28 SUBBASES
Existing
Function
Terminals
or
Common
X1 C
Power
R
or
Compressor
Y Y1
1st Stage
W1
Heat
Aux. Heat
W2
3rd Stage
W3
Aux. Heat
Fan
G
2nd Stage
Y2
Cool
C/O Valve
B
Heat
C/O Valve
O
Cool
System Monitor/
L
System Defrost
Em. Heat
E
Multiple Aux.
–
Heat Lads
LED Indication
–
Configure O/B (select models) in Installer Setup.
Do not remove factory-installed jumper.
If provided on original equipment.
Terminal is for multiple auxiliary heat loads such as contactors, sequencers,
or relays.
Terminal must be connected to the transformer common.
If 2nd stage heat is auxiliary (electric resistive), connect auxiliary stage to W3.
70-6627 • 108
Electromechanical
X X X
R R R
Y Y Y1
– W1 W1
W2 W2 W2
G G G
B B B
O O O
– L –
E E E
W3 W3 W3
– X2 X1 X2
Electronic Replacement or Upgrade
®
Chronotherm
III
C C
R R
or
Y Y1 Y1
W1 –
W2
W3 W3
G G
Y2 Y2
B O/B
O O/B
L L
E E
– –
X1 X2 –
Field-installed X2 to X (C) jumper.
LED is energized when terminal is powered.
L terminal is powered continuously when thermostat is in Em. Ht. position.
Optional LED indication activated with completed circuit on X1 and
X2 terminals.
When 3rd Stage aux. heat is not used, leave W2 blank and wire auxiliary
heat to aux. terminal. Configure W2 to NC in installer setup.
Chronotherm IV
C C
R R
Y1 Y1/W1
– –
W2
W3 Aux.
G G
Y2 Y2
O/B O/B
O/B O/B
L L
E E
– –
X1 X2 –
M13141