Installation Guide
69-2198—01 6
HEAT PUMP
Fig. 13. Zone panel wiring—heat pump, 2-heat/1-cool with electric auxiliary heat.
Use the following diagram for wiring a 2-heat/1-cool heat pump with electric auxiliary heat.
NOTE: You can use a conventional thermostat for a heat pump system; however, em heat can only be controlled by
heat pump thermostats. The diagram below shows a heat pump thermostat used with a heat pump system.
1
2
1
2
1
2
3
3
1
2
1
2
Rc
R
C
E
AUX
Y
G
O/B
L
Rc
R
C
E
AUX
Y
G
O/B
L
Rc
R
C
E
AUX
Y
G
O/B
L
Rc
R
C
E
AUX
Y
G
O/B
L
ALTERNATIVELY LABELED W2 ON SOME THERMOSTATS.
FOR THERMOSTATS WITH SEPARATE O AND B TERMINALS, ATTACH O FOR
COOL CHANGEOVER VALVES, AND ATTACH B FOR HEAT CHANGEOVER VALVES.
IF EQUIPMENT DOES NOT HAVE SEPARATE E AND W2 TERMINALS, JUMPER
E TO W2 ON PANEL AND WIRE TO E.
HZ432
HEAT 1
HEAT 2
HEAT 3
COOL 1
COOL 2
PURGE
FAN
EM HEAT
ZONE 1
ZONE 2
ZONE 3
ZONE 4
EMERGENCY
HEAT
M1
M4
M6
R
C
W1/E
W2
W3
Y1
Y2
G
O/B
L
M1
M4
M6
R
C
W1/E
W2
W3
Y1
Y2
G
O/B
L
M1
M4
M6
R
C
W1/E
W2
W3
Y1
Y2
G
O/B
L
RH
RC
W1/E
W2
W3
Y1
Y2
G
O
B
DS/BK
HOME
CONFIG
CHECK OUT
ADJUST SETTING
M4 OPEN
M6 CLOSED
M1 COMMON
M24794
ARD OR ZD DAMPER
SPRING-OPEN
POWER-CLOSED
DEDICATED
TRANSFORMER
R
C
L1
(HOT)
L2
AIR
HANDLER
FAN RELAY
EM. HEAT
AUX. HEAT
HEAT PUMP
G
Y
24 VOLT TRANS.
C
R
Y
E
C
R
W2
ARD OR ZD DAMPER
SPRING-OPEN
POWER-CLOSED
ARD OR ZD DAMPER
SPRING-OPEN
POWER-CLOSED
M1
M4
M6
R
C
W1/E
W2
W3
Y1
Y2
G
O/B
L
DATS
DATS
OT
OT
AZ1
AZ2
ZONE 4
DAMPER
THERMOSTATEQUIPMENT
POWERSENSORS
A
B
C
D
ACCESSORIES
ZONE 2
DAMPER
THERMOSTATZONE 1
DAMPER
THERMOSTAT ZONE 3
DAMPER
THERMOSTAT
R
C
C7089U1006
OUTDOOR
TEMPERATURE
SENSOR
C7735A1000
DATS
WIRELESS
ADAPTER
RRD OR MARD DAMPER
POWER-OPEN
POWER-CLOSED
REVERSING
VALVE
WIRELESS
CONNECT
POWER
THM4000R
CONNECTED
WIRELESS SETUP
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