18
Figure 12.
Typical Thermostat Connections
G R
W
Thermostat
Y
C
Air
Handler
Air
Conditioner
Y
Typical Air Conditioner with
Standard Air Handler
G R C E
O Y
Thermostat
Typical Heat Pump with
Standard Air Handler
Heat Pump
NOTE:
Jumper between
W2 & E is required when
no OD T-Stat is used.
W1
Y
G
R
C
Air
Handler
W1
Y
G
R
C
R
C
Y
W2
O
W2
NOTE:
See step c (page 11).
Y
R
C
Outdoor
Unit
A/H #1
C R Y G W
W
G
Y
R
Thermostat
1
A/H #2
1
See step d
(page 11).
C R Y G W
Figure 13.
Low Voltage Wiring For Twinning
