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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
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
DHUM
COM
Y1
See notes 1, 2, 3, 5, 7, 8, 9, 10, 11, and 13
A03033
O/W2
W/W1
Y1/W2
G
R
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
R
COM
HUM
PL9-10
DHUM
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
THERMIDISTAT
CONTROL
MODEL RH
Y1
Y1
See notes 1, 2, 3, 5, 7, 8, 9, 10, and 11
A03034
O/W2
W/W1
Y1/W2
G
R
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
R
COM
HUM
DHUM
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
Y1
See notes 1, 2, 3, 5, 7, 8, and 12
A03035
W/W1
G
R
VARIABLE
SPEED
CONDENSING
FURNACE
TWO-SPEED
HEAT PUMP
G
C
Y2
W1
C
L
B
S1
S2
R
R
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
DEHUM
Y1
COM
See notes 1, 2, 3, 5, 7, 8, and 12
A03036
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 12
A01424
LEGEND
24 VOLT FACTORY WIRING
24 VOLT FIELD WIRING
FIELD SPLICE CONNECTION
RELAY SPDT, PILOT DUTY
24-V COIL (HN61KK324)
OR EQUIVALENT
HUMIDISTAT, OPENS ON
HUMIDITY RISE (HL38MG026)
AIRFLOW SELECTOR
RELAY COIL
R1
H
AFS
Y1
A01222
Fig. 13—Typical 24V Circuit Connections (Cont) and Wiring Diagram Legend
—9—
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