Honeywell THE DIGITAL ROUND CT8775A - Page 17

17 69-1676—1
Notice:
This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations,
CRC c. 1374.
1
4
COMPRESSOR
CONTACTOR
HEAT
CHANGEOVER
VALVE
COOL
CHANGEOVER
VALVE
FAN
RELAY
M19453
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2 FACTORY INSTALLED JUMPER.
3 USE A JUMPER WIRE (NOT SUPPLIED) TO CONNECT W TO Y.
4 USE EITHER O OR B FOR HEAT PUMP CHANGEOVER.
3
2
W
R
Rc
B
O
Y
G
1
2
1
HEATING
RELAY OR
VALVE COIL
COMPRESSOR
CONTACTOR
FAN
RELAY
M19454
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
REMOVE FACTORY INSTALLED JUMPER BETWEEN R AND R
C
.
W
R
Rc
B
O
Y
G
2