Honeywell CT3500 Owner's Manual - Page 22

Wiring Diagrams

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WIRING DIAGRAMS 2-WIRE HEAT-ONLY (JUMPER INTACT) THERMOSTAT B RC O W Y R G 4-WIRE HEAT/COOL (JUMPER INTACT) THERMOSTAT B RC O W Y R G HEATING RELAY OR VALVE COIL 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M10616 3-WIRE HEAT ONLY WITH FAN (JUMPER INTACT) THERMOSTAT B RC O W Y R G HEATING RELAY OR VALVE COIL FAN RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M10618 69-1199-4 HEATING COOLING FAN RELAY OR CONTACTOR RELAY 1 VALVE COIL COIL 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M10617 4-WIRE SINGLE-STAGE HEAT PUMP (JUMPER INTACT) THERMOSTAT B RC O W Y R G 3 22 2 COMPRESSOR HEAT CHANGEOVER CONTACTOR 2 VALVE 1 COOL CHANGEOVER FAN VALVE RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 USE EITHER O OR B FOR HEAT PUMP CHANGEOVER. 3 USING A JUMPER WIRE (NOT SUPPLIED) CONNECT W TO Y. M12739

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69-1199—4
22
WIRING DIAGRAMS
THERMOSTAT
1 POWER SUPPLY.
PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
HEATING
RELAY OR
VALVE COIL
B
R
RC
OW
Y
G
2
-
WI
R
E
H
E
A
T
-
O
N
LY
(
J
U
M
PE
R
I
N
T
AC
T
)
M10616
M10617
THERMOSTAT
1
POWER SUPPLY.
PROVIDE
DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
4
-
WI
R
E
H
E
A
T/
C
OOL
(
J
U
M
PE
R
I
N
T
AC
T
)
HEATING
RELAY OR
VALVE COIL
COOLING
CONTACTOR
COIL
FAN
RELAY
B
R
RC
OW
Y
G
M10618
THERMOSTAT
1 POWER SUPPLY.
PROVIDE
DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
3
-
WI
R
E
H
E
A
T O
N
LY WIT
H
F
AN
(
J
U
M
PE
R
I
N
T
AC
T
)
HEATING
RELAY OR
VALVE COIL
FAN
RELAY
B
R
RC
OW
Y
G
M12739
THERMOSTAT
4
-
WI
R
E SI
N
GLE
-
ST
A
GE
H
E
A
T P
U
M
P
(
J
U
M
PE
R
I
N
T
AC
T
)
B
R
RC
OW
Y
G
POWER SUPPLY.
PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
USE EITHER O OR B FOR HEAT PUMP CHANGEOVER.
USING A JUMPER WIRE (NOT SUPPLIED) CONNECT
W TO Y.
1
2
2
2
1
COMPRESSOR
CONTACTOR
COOL
CHANGEOVER
VALVE
HEAT
CHANGEOVER
VALVE
FAN
RELAY
3
3