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VARIABLE SPEED 80%
NON-CONDENSING FURNACE
O
CARRIER
THERMIDISTAT
Y1
CONTROL
MODEL RH
O/W2
RVS COOLING
HEAT/COOL
Y1/W2
STAGE 1
HEAT STAGE 3
W/W1
HEAT/COOL
Y/ Y2
STAGE 2
FAN
G
24 VAC HOT
R
24 VAC COM
C
DEHUMIDIFY
DHUM
DEHUM
HUMIDIFY
HUM
N/A
B
S1
OUTDOOR
SENSOR
S2
CONNECTIONS
AFS
BOARD
TWO-SPEED
HEAT PUMP
FURNACE
O
BOARD
Y1
W2
W2
W/W1
Y2
Y/Y2
G
W3
R
R
COM
C
HUM
PL9-10
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
See notes 7, 11, 12, 14, 15, 16, 17,
18, 20, 21, and 25
X
CARRIER
THERMIDISTAT
CONTROL
MODEL RH
O/W2
RVS COOLING
COOL/HEAT
Y1/W2
STAGE 1
W/W1
HEAT STAGE 3
COOL/HEAT
Y/Y2
STAGE 2
FAN
G
R
24 VAC HOT
DHUM
DEHUMIDIFY
24 VAC COMM
C
HUM
HUMIDIFY
B
N/A
S1
OUTDOOR
SENSOR
S2
CONNECTION
Fig. 8—Typical 24-v Circuit Connections (Continued)
CARRIER
PROGRAMMABLE
DUAL FUEL
THERMOSTAT
MODEL DF
RVS COOLING
COOL/HEAT
STAGE 1
(COMPRESSOR LO)
HEAT STAGE 3
(FURNACE)
COOL/HEAT
STAGE 2
(COMPRESSOR HI)
FAN
24 VAC HOT
24 VAC COMM
N/A
RVS SENSING
OUTDOOR
SENSOR
CONNECTIONS
A98596
VARIABLE-SPEED
CONDENSING
TWO-SPEED
FURNACE
HEAT PUMP
W2
W/W1
Y/Y2
G
R
DH
C
HUM
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
See notes 7, 11, 12, 14, 15, 16, 17,
18, 19, 22, and 25
Z
12
VARIABLE SPEED 80%
NON-CONDENSING FURNACE
AFS
O
BOARD
Y1
FURNACE
O/W2
BOARD
Y1/W2
W2
W/ W1
W/W1
Y/ Y2
Y/Y2
G
G
R
R
COM
C
HUM
B
DEHUM
L
PL9-10
OUTDOOR
S1
SENSOR
S2
See notes 7, 11, 12, 14, 15, 21, and 26
Y
O
Y1
W2
Y2
R
C
A98598
TWO-SPEED
HEAT PUMP
O
Y1
W2
Y2
W3
R
C
A98597
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