Carrier 25HNA Infinity
Series Installation Instructions Manual page 19

INDOOR CONTROL
O/W2
RVS COOLING
HEAT/COOL
Y1/W2
STAGE 1
W/W1
HEAT STAGE 3
HEAT/COOL
Y/Y2
STAGE 2
G
FAN
24 VAC HOT R
DHUM
DEHUMIDIFY
24 VAC COMM C
HUM
HUMIDIFY
B
RVS HEATING
S1
OUTDOOR
SENSOR
S2
CONNECTION
Fig. 13 − Infinity Wiring with 2−Stage Puron Refrigerant
Heat Pump (non−communicating)
(applies to 25HNA6 Models Only)
User Interface
Fig. 15 − Infinity Furnace or Fan Coil Wiring with Communicating Two−Stage AC / HP
FAN COIL 2-SPEED
HEAT PUMP
O O
Y1
Y1
W1
W1
REMOVE J2
JUMPER FOR
W2
HEAT STAGING
Y2
Y/Y2
G
R
R
REMOVE J1 FOR
DEHUMIDIFY
DH
MODES
C
C
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
A02005
D
C
B
A
Humidifier
HybridHeatm
Fig. 14 − HybridHeatt Thermostat with Two−Stage
Furnace and Two−Stage Heat Pump (non−communicating)
Communicating AC//HP
Fan Coil
D
C
B
A
19
TWO−STAGE
D
C
B
A
A03076
A06157