R
O
B/W1
Y1
G
DSBK
HV
A
C E
QUIPMENT
W2/E
Y2
R
C
W1/OB
W2/E
Y
G
ZONE1 TS
TA
T
R
C
W1/OB
W2/E
Y
G
ZONE1 TS
TA
T
Zone 2 or 3 Thermostat
Heat/Cool
24VAC
R
C
W1/OB
W2/E
Y1
Y2
G
Zoning Panel
Wiring Zone Thermostats
Wiring HVAC Equipment
Heat/Cool Thermostats
Gas/Electric System, Two-Stage Heat
Heat Pump Thermostats with Auxiliary Heating
Gas/electric systems using Heat/Cool thermostats. Wiring for
these thermostats is shown below.
Heat/Cool thermostats can be used in all zones. A heat pump
thermostat can be used in Zone1 with heat pump equipment to
control emergency heating. The type of thermostat can be
selected using the PDMi3.
Gas/Electric systems using a single 24VAC transformer are
wired as shown below. RC and RH are jumpered on the panel.
When using a heat pump thermostat, on the thermostat select
O operation of the reversing valve. If both an O and B terminal
are provided on the thermostat, wire the thermostat O terminal
to the W1/OB terminal at the Zone1 thermostat terminals.
5.
6.
A heat pump thermostat should be used in Zone1 when heat
pump equipment is selected. Wiring of a heat pump zone
thermostat is shown below.
Thermostat
R
C
OB
W2/E
Y1
G
Zoning Panel
Terminal Function
24VAC
24VAC Common
Reversing valve.
Auxiliary Heating/Emergency Heating
Stage1 Compressor
Indoor Fan
R
C
W1/OB
W2/E
Y
G
5-conductor
18 gage
Thermostat Wire
RC
HVAC SYSTEM
Line
24VAC
Gas Valve1
W1
R
W2
Y1
G
Gas Valve2
Compressor1
Indoor Fan
Zoning Panel
R
B/W1
W2/E
Y1
G
Equipment
Terminal Function
24VAC for Thermostat and Terminals
Gas Valve, Stage1
Gas Valve, Stage2
Compressor Stage1
Indoor Fan
R
W1
W2
Y1
G
R
C
W1
Y1
G
ZONE2 TST
A
T
R
C
W
Y
G
R
C
W1
Y1
G
Zoning Panel
Thermostat
R
C
Y or Y1
G
Zoning Panel
R
C
24VAC
24VAC Common
Cooling, Stage1
Indoor Fan
Y
G
Terminal Function
W1
Stage1 Heating
W
Zoning Panel
Zone 1 Thermostat
Heat/Cool
24VAC
Thermostat
R
C
Y or Y1
G
Zoning Panel
R
C
24VAC
24VAC Common
Cooling, Stage1
Indoor Fan
Y
G
Terminal Function
W1/OB
Stage1 Heating
W1/OB
Inside
Day
Th
MODE
MENU
FAN
SYSTEM
Schedule
Auto
Heat
Heat
Set To
AM
Inside
Day
Th
MODE
MENU
FAN
SYSTEM
Schedule
Auto
Heat
Heat
Set To
AM
Inside
Day
Th
MODE
MENU
FAN
SYSTEM
Schedule
Auto
Heat
Heat
Set To
AM
4
