Fig. 13—Single-Stage Furnace With
1-Speed Heat Pump (Dual Fuel)
A97393
O/W2
W/ W1
Y1/W2
G
R
THERMIDISTAT
1-STAGE
FURNACE
1-SPEED
HEAT PUMP
W
G
Y
C
Y
W2
R
O
C
DHUM
HUM
B
S1
S2
R
C
HEAT STAGE 2
(FURNACE)
HEAT/COOL
STAGE 1
(COMPRESSOR)
RVS COOLING
N/A
FAN
24 VAC HOT
24 VAC COMM
N/A
HUMIDIFY
N/A
OUTDOOR
SENSOR
CONNECTION
Y/Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
See notes 3, 9, 14, 15, and 17
Fig. 11—Single-Stage Furnace With
1-Speed Air Conditioner
A97391
O/W2
W/W1
Y1/W2
G
R
THERMIDISTAT
1-STAGE
FURNACE
1-SPEED
AIR CONDITIONER
W
G
Y
C
Y
C
DHUM
HUM
B
S1
S2
R
C
N/A
HEAT STAGE 1
COOL STAGE 1
N/A
FAN
24 VAC HOT
See notes 13 and 15
N/A
HUMIDIFY
N/A
OUTDOOR
SENSOR
CONNECTION
Y/Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
Fig. 14—Single-Stage Furnace With
2-Speed Heat Pump (Dual Fuel)
A97394
O/W2
W/W1
Y1/W2
G
R
THERMIDISTAT
1-STAGE
FURNACE
2-SPEED
HEAT PUMP
W
G
Y
C
Y2
W3
W2
R
O
Y1
C
DHUM
HUM
B
S1
S2
R
C
HEAT STAGE 3
(FURNACE)
HEAT/COOL
STAGE 2
(COMPRESSOR HI)
RVS COOLING
HEAT/COOL
STAGE 1
(COMPRESSOR LO)
FAN
24 VAC HOT
24 VAC COMM
N/A
HUMIDIFY
N/A
OUTDOOR
SENSOR
CONNECTION
Y/Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
See notes 3, 4, 5, 9, 14, 16, and 17
Fig. 12—Single-Stage Furnace With
2-Speed Air Conditioner
A97392
O/ W2
W/W1
Y1/W2
G
R
THERMIDISTAT
1-STAGE
FURNACE
2-SPEED
AIR CONDITIONER
W
G
Y
C
Y2
R
Y1
C
DHUM
HUM
B
S1
S2
R
C
HEAT STAGE 1
COOL STAGE 2
COOL STAGE 1
N/A
FAN
24 VAC HOT
24 VAC COMM
N/A
HUMIDIFY
See notes 13 and 16
N/A
OUTDOOR
SENSOR
CONNECTION
Y/Y2
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
—13—