Honeywell Heat/1Cool - T841A1563 Premier 2 Stage Thermostat User Manual page 26

HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE
THERMOSTAT
LOGIC
W2
W1
Y1
E
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
O/B IS FIELD CONFIGURABLE TO SELECT ENERGIZED IN HEATING OR
2
COOLING. (DEFAULT IS ENERGIZED IN HEATING).
3
REMOVE JUMPER, WHEN SUPPLIED, FOR SYSTEMS WITH SEPARATE
HEATING COMPRESSOR CONTACTOR (W1 SEPARATE FROM Y1).
70-6627 • 24
POWER
SUPPLY
W2
G O/B
E
Y1
Fig. 30. Typical wiring diagram for T8511G.
W1
G
O/B
R
C
COMPRESSOR
CONTACTOR HEAT
W1
AUXILIARY
HEAT RELAY
W2
3
E
COMPRESSOR
CONTACTOR
Y1
G
CHANGEOVER
2
VALVE
O/B
COMPRESSOR
CHECK LED (RED)
MONITOR
L
OT
OUTDOOR
SENSOR C7089B
OT
1
L1
(HOT) L2
EMERGENCY
HEAT RELAY
FAN RELAY
TO R
M13281