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O/W2
W/W1
Y1/W2
G
R
VARIABLE-SPEED
CONDENSING
FURNACE
TWO-SPEED
HEAT PUMP
W/W1
G
Y/Y2
C
Y2
R
Y1
W1
O
C
DHUM
HUM
B
S1
S2
W2
R
C
HEAT STAGE 3
COOL/HEAT
STAGE 1
COOL/HEAT
STAGE 2
RVS COOLING
FAN
24 VAC HOT
24 VAC COMM
DEHUMIDIFY
HUMIDIFY
N/A
OUTDOOR
SENSOR
CONNECTION
Y/Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
HUM
THERMIDISTAT
CONTROL
MODEL RH
DEHUM
DE
JUMPER
See notes 1, 2, 3, 5, 7, 8, 9, 10, 11, and 14
A01431
O/W2
W/ W1
Y1/W2
G
R
FURNACE
BOARD
AFS
BOARD
TWO-SPEED
HEAT PUMP
VARIABLE SPEED 80%
NON-CONDENSING FURNACE
W/W1
G
Y/Y2
C
Y2
W1
O
C
DHUM
HUM
B
S1
S2
R
W2
O
Y1
R
COM
HUM
PL9-10
DEHUM
HEAT STAGE 3
HEAT/COOL
STAGE 1
HEAT/COOL
STAGE 2
RVS COOLING
FAN
24 VAC HOT
24 VAC COM
DEHUMIDIFY
HUMIDIFY
N/A
OUTDOOR
SENSOR
CONNECTIONS
Y/ Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
Y1
THERMIDISTAT
CONTROL
MODEL RH
See notes 1, 2, 3, 5, 7, 8, 9, 10, 11, and 12
A01432
O/W2
W/ W1
Y1/W2
G
R
FURNACE
BOARD
AFS
BOARD
TWO-SPEED
HEAT PUMP
VARIABLE SPEED 80%
NON-CONDENSING FURNACE
W/W1
G
Y/Y2
C
Y2
W1
O
C
L
B
S1
S2
R
W2
O
Y1
R
COM
HUM
PL9-10
DEHUM
HEAT STAGE 3
(FURNACE)
COOL/HEAT
STAGE 1
(COMPRESSOR LO)
COOL/HEAT
STAGE 2
(COMPRESSOR HI)
RVS COOLING
FAN
24 VAC HOT
24 VAC COMM
RVS SENSING
N/A
OUTDOOR
SENSOR
CONNECTIONS
Y/ Y2
OUTDOOR
SENSOR
Y1
PROGRAMMABLE
DUAL FUEL
THERMOSTAT
MODEL DF
See notes 1, 2, 3, 5, 7, 8, and 13
A01433
Fig. 12—Typical 24V Circuit Connections (Cont’d)
W/ W1
G
R
VARIABLE
SPEED
CONDENSING
FURNACE
TWO-SPEED
HEAT PUMP
G
C
Y2
W1
C
L
B
S1
S2
R
R
C
W2
HEAT STAGE 3
(FURNACE)
COOL/HEAT
STAGE 2
(COMPRESSOR HI)
FAN
24 VAC HOT
24 VAC COMM
O
O/W2
RVS COOLING
RVS SENSING
N/A
OUTDOOR
SENSOR
CONNECTIONS
W/ W1
Y/ Y2
Y/ Y2
Y1
COOL/HEAT
STAGE 1
(COMPRESSOR LO)
Y1/W2
OUTDOOR
SENSOR
PROGRAMMABLE
DUAL FUEL
THERMOSTAT
MODEL DF
HUM
JUMPER
DE
DEHUM
See notes 1, 2, 3, 5, 7, 8, and 13
A01434
O/W2
Y1/W2
W/W1
G
R
R
G
PROGRAMMABLE
DUAL FUEL
THERMOSTAT
TWO-STAGE
FURNACE
TWO-SPEED
HEAT PUMP
W/W1
C
Y2
W1
O
Y1
C
B
L
S1
S2
R
Y/Y2
C
HUM
W1
HEAT STAGE 3
(FURNACE)
COOL/HEAT
STAGE 2
(COMPRESSOR HI)
COOL/HEAT
STAGE 1
(COMPRESSOR LO)
RVS COOLING
FAN
24 VAC HOT
24 VAC COM
N/A
RVS SENSING
OUTDOOR
SENSOR
CONNECTION
Y/Y2
OUTDOOR
SENSOR
SUGGESTED DIP
SWITCH SETTINGS
See notes 1, 2, 3, 5, 7, 8, and 13
A01424
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