Wiring Connections For Honeywell Heat Pump Thermostats - Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual

HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE
Electronmechanical
Function
Common
X
Power
R
Compressor
Y
1st Stage
–
Heat
Auxiliary
W2
Heat
Fan
G
C/O Valve
B
Heat
C/O Valve
O
Cool
System Monitor/
–
Sytem Defrost
Em. Heat
E
Multiple Heat
W3
Loads
LED Indication
–
Defrost
–
2nd Stage
–
Compressor
2nd Stage
–
Cool in two
Stage System
70-6627 • 34
Chronotherm
III
X X C
R R R
or
Y Y1 Y1
W1 W1 W1
W2 W2 W2
G G G
B B B
O O O
L L
E E E
W3 W3
X2 X1 X2 X1 X2
– – P
– – –
– – –
Electronic Replacement or Upgrade
®
C C
R R
Y Y Y1
W1 W1
W2 W2
G G
or
B B O/B
or
O O O/B
L L
E E
– –
– –
– –
– –
Chronotherm
IV
C C C
R R R
Y Y1 Y1
W1 W1 –
W2 W2 Y2
G G G
or or
B B O/B B O/B
or or
O O O/B O O/B
L L L
E E E
W3
– X1 X2 X1 X2
– – –
– – Y2
– – –
C
R
Y1/W1
–
Aux.
G
O/B
O/B
L
E
–
–
W2
Y2
M13245