15
D
C
B
A
User Interface (UI)
D
C
B
A
No
Use
C
B
A
VS HP
OA
T
R
Y
O
W
C
HUM
C
Humidifier
24v
a
c
C and D
not required on
VS Heat Pump
Furnace or Fan Coil
A12055
Fig. 18 -- Infinity Furnace or Fan Coil Wiring with Communicating Variable Speed HP
D
C
B
A
VS HP
OA
T
G
Y
OW
C
HUM
Furnace or Fan Coil
C
B
A
UT
IL
C
LS
O
Y
R
G
Y
OW
C
R
Conventional
Dual-Fuel
Thermostat
A11382
Fig. 19 -- Variable Speed Unit Connected to a Conventional Dual Fuel Thermostat in an Emergency Mode
