Use the following diagram for wiring a dual-fuel system with two-stage furnace and two-stage heat pump.
ARD OR ZD DAMPER
SPRING-OPEN
POWER-CLOSED
1
FURNACE
24 VOLT TRANS.
C
R
HEAT 1
W
HEAT 2
W2
FAN RELAY
G
Y2
Y
HEAT PUMP
C
R
Y
Y2
REVERSING
C7089U1006
VALVE
TEMPERATURE
C7735A1000
DATS
THM4000R
POWER
WIRELESS SETUP
CONNECTED
CONNECT
WIRELESS
ADAPTER
Fig. 16. Zone panel wiring—dual fuel: two-stage furnace and two-stage heat pump.
M1
M4
M6
R
Rc
C
R
C
W1/E
E
W2
AUX
W3
Y
Y1
Y2
Y2
G
G
O/B
O/B
L
L
RH
RC
W1/E
W2
W3
Y1
Y2
G
O
B
DS/BK
L1
R
(HOT)
R
C
L2
C
DEDICATED
TRANSFORMER
AZ1
AZ2
OUTDOOR
OT
OT
SENSOR
DATS
DATS
A
B
C
D
1
ALTERNATIVELY LABELED W3 ON SOME THERMOSTATS.
2
ABCD TERMINALS FOR THE THM4000R WIRELESS ADAPTER ONLY. NEVER WIRE A THM5320R
WIRELESS EIM TO THESE TERMINALS.
M1
M4
M6
R
C
W1/E
W2
W3
Y1
Y2
G
O/B
L
M1
M4
M6
R
C
W1/E
W2
W3
HZ432
Y1
Y2
G
O/B
L
HEAT 1
ZONE 1
HEAT 2
HEAT 3
ZONE 2
COOL 1
M1
COOL 2
ZONE 3
M4
PURGE
FAN
M6
ZONE 4
EM HEAT
R
C
W1/E
W2
W3
EMERGENCY
Y1
HEAT
Y2
G
O/B
L
2
HOME
CONFIG
CHECK OUT
ADJUST SETTING
9
HZ432 TrueZONE
DUAL FUEL
RRD OR MARD DAMPER
M1 COMMON
POWER-OPEN
POWER-CLOSED
M4 OPEN
M6 CLOSED
Rc
R
C
E
AUX
1
Y
Y2
G
O/B
L
ARD OR ZD DAMPER
SPRING-OPEN
POWER-CLOSED
Rc
R
C
E
AUX
1
Y
Y2
G
ARD OR ZD DAMPER
O/B
SPRING-OPEN
L
POWER-CLOSED
Rc
R
C
E
AUX
1
Y
Y2
G
O/B
L
M24793A
69-2198—03