Page 20 of 20
507389-02
Issue 1733
Figure 13.
MODEL
COOLING
SPEED
HEATING
SPEED
HWC9N2211P12A1
TAP #4
TAP #1
HWC9N3311P12A1
TAP #4
TAP #2
HWC9N3311P18A1
TAP #4
TAP #1
HWC9N4411P18A1
TAP #4
TAP #2
HWC9N5511P18A1
TAP #4
TAP #3
HWC9N3311P24A1
TAP #4
TAP #1
HWC9N4411P24A1
TAP #4
TAP #2
HWC9N5511P24A1
TAP #4
TAP #3
HWC9N4411P30A1
TAP #4
TAP #2
HWC9N5511P30A1
TAP #4
TAP #3
GREEN
COM
LED DIAGNOSTIC CONDITIONS:
COMP
CONTACTOR
IGNITION
CONTROL
AUTO RESET
LIMIT SWITCH
CMB
L1
GND
LINE VOLTAGE-FACTORY
RED
BLUE
BLK/WHT
BLK/WHT
L2
THERMOSTAT
208/230V-1
-60Hz
POWER SUPPLY
COPPER CONDUCTORS
ONLY.
240 V
208 V
YELLOW
RED
BLUE
BLACK
COMBUSTION
BLOWER
BLK/WHT
BLACK
R
RED
GREEN
WHITE
YELLOW
WHT
RED
YELLOW
ORANGE
BLACK
GREEN
ORANGE
PURPLE
PURPLE
BLUE
FLAME SENSOR
SPARK
ELECTRODE
G
W
C
Y
BLACK
GAS
VALVE
BLUE
YELLOW
L1
T1
T2
BLACK
BLK/WHT
YELLOW
PURPLE
BROWN
NOTE:
IF ANY OF THE ORIGINAL
WIRES ARE REPLACED THE
SAME SIZE AND TYPE WIRE
MUST BE USED.
CIRCUITS ENERGIZED
LINE VOLTAGE-FIELD
LOW VOLTAGE-FACTORY
24VAC
R
C
S
FAN
COM
HERM
PRESSURE
SWITCH
TRANSFORMER
BLOWER
MOTOR
CAPACITOR-RUN
COND
FAN
MOTOR
REFRIGERANT
HIGH PRESSURE
SWITCH
BLUE
BLK/WHT
RED
BLACK
BLACK
BLUE
YELLOW
OPERATING MODE CIRCUIT
HEATING R-W
COOLING R-G-Y
FAN R-G
ORG
GREEN
WHITE
WHITE
GREEN
N
G
L
C
BLACK
BLUE
GREEN
BLK/WHT
COOL
HEAT
UNUSED
BLACK
BLK/WHT
4
6
5
3
1
24V
R
G
W
Y
C
HEATING CABINET
COOLING CHASSIS
L2
L1
LOW VOLTAGE-FIELD
1
4
5
6
3
2
MANUAL RESET
LIMIT SWITCH
FUSE
SLOW FLASH = NORMAL OPERATION, NO CALL FOR HEAT
FAST FLASH = NORMAL OPERATION, CALL FOR HEAT
2 FLASH = SYSTEM LOCKOUT - FAILED TO DETECT OR
SUSTAIN FLAME
3 FLASH = UNEXPECTED OPEN OR CLOSED PRESSURE SWITCH
4 FLASH = HIGH LIMIT OR ROLLOUT SWITCH OPEN
5 FLASH = FLAME SENSED AND GAS VALVE NOT ENERGIZED
STEADY ON= INTERNAL FAILURE (MICRO-CONTROLLER
FAILURE; SELF-CHECK)
COMPRESSOR
CMB
BLWR
CONTACTOR
208/230V-1
-60Hz
PRESSURE SWITCH
CONTACTOR COIL
FLAME
SENSOR
GAS
VALVE
R
G
Y
R
G
W
Y
C
GRD
24VAC
BLOWER/
IGNITION
CONTROL
MANUAL RESET
LIMIT SWITCH
LIMIT SWITCH
W
L2
L1
24V
208V
COM
240V
TRANSFORMER
DUAL CAPACITOR
COMBUSTION BLOWER
L1
T1
S
R
C
F
H
C
T2
L2
REFRIGERANT
HIGH PRESSURE
SWITCH
CONDENSER
FAN
MOTOR
AUTO RESET
1
4
5
6
3
2
C
SPARK
ELECTRODE
CONTACTOR
FUSE
2
1
3
4
5
BLOWER
MOTOR
C
BLOWER
MOTOR
N
G
L
THERMOSTAT
COOLING
HEATING
2
1
3
4
5
SEE CHART
FOR WIRING
GREEN
WHITE
GRAY
PURPLE
BLACK
GREEN
ORANGE
HEATER
GRAY
RED
SWITCH
BLUE
SWITCH
HEATER
537796-02
