Honeywell CT87A Round Thermostat Instruction Manual
CT87A,B,J ROUND® THERMOSTAT
Fig. 11. CT87B for a 5-wire heating/cooling system.
CT87B SUBBASE
HEATING
POWER
TO
SYSTEM
FAN
RH
G
COOLING
POWER
TO
SYSTEM
RC
Y
W
COOL
HEAT
M20225
Fig. 12. CT87J for a 4-wire single stage heat pump.
CT87J SUBBASE
HEAT
FAN
TO
SYSTEM
W
G
POWER
Y
P
COOL
REVERSING VALVE
R
O
B
HEAT
REVERSING VALVE
DO NOT ATTACH WIRES
TO BOTH B AND O
JUMPER W TO Y
M20186
Fig. 13. CT87J for 4-wire single stage heat pump.
CT87J SUBBASE
FAN
POWER
HEAT
REVERSING
VALVE
W
G
Y
1
P
COOL
REVERSING
VALVE
R
TO
SYSTEM
B
O
HEAT PUMP
COMPRESSOR
DO NOT ATTACH WIRES
TO BOTH B AND O
1
IF WIRES ARE ATTACHED TO Y OR W, AND P ON YOUR OLD
THERMOSTAT, CONTACT YOUR LOCAL CONTRACTOR FOR
FURTHER ASSISTANCE.
M20228
69-0274-6
8
firealarmresources.com
| General | Details |
|---|---|
| Name | Honeywell CT87A Round Thermostat Instruction Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.29 MB |
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