FLAME
ROLL-OUT
SUPPLY
AIR LIMIT
PRESSURE
SWITCH
PRESSURE
SWITCH
PRESSURE
SWITCH
PRESSURE
SWITCH
11
22
33
44
55
66
77
88
99
FLAME SENSOR
GAS
VALVE
IGNITOR
DOOR
SWITCH
LOW
HIGH
BLOWER
LIMIT
BLOWER
LIMIT
WHITE
RED
GREEN
YELLOW
WHITE
RED
GREEN
YELLOW
CFM
MOTOR
GNDSEN
DHUM Y1
H
L2-OUT
L2-IN
L1-IN
L1-OUT
Y1Y/Y2W
C
R
HP
SPEED
COMMON
PWM
MODE
OPEN
OPEN
FAULT
R
C
GND
RX
TX
W
C
DX-
DX+
R
RED
RED
GREEN
GREEN
YELLOW
24 V
120 V
WHITE
BLACK
WHITE W/ BLK STRIPES
BLK W/ WHITE STRIPES
BLACK
WHITE
BLACK
BLACK
LINE-N
LINE-N
XFMR-N
LINE
XFMR
EAC
LINE
EAC-N
COM
3 AMP FUSE
Inducer Drive
(PWM Drive)
24V
R
DX+
DX-
C
R
DX+
DX-
C
36
25
14
51234
TH
RH
RX
TX
24V
MVT
TR
TX
RX
TH
ORANGE
YELLOW
BROWN
RED
GREEN
VP
RX
TX
TR
MVT
VENT LIMIT
BLACK 120V
WHITE (NEUTRAL)
GROUND
MOTOR CHOKE
(ON 3/4 AND 1HP
MOTORS ONLY)
ORANGE
YELLOW
BROWN
RED
GREEN
ORANGE
YELLOW
BROWN
RED
GREEN
INDUCER
BLACK
WHITE
BLACK
WHITE
BLUE
BLACK
BLUE
WHITE
IQ THERMOSTAT/
CONTROLLER
GREEN
RED
RED
RED
PA RT O F
MOTOR
123
123
TO
OUTDOOR
UNIT
VIOLET
ORANGE
GREEN
ORANGE
ORANGE
VIOLET
BLACK
WHITE
RED
GREEN
VIOLET
BLUE
BLUE
BLUE
BLACK
WHITE
BLACK
BLACK
WHITE
BLACK
BLACK
BLUE
BLUE
Diagnostic Description
Green LED
(AN3)
Red LED
(AN1)
Control Fault (No Power) Off Off
L1/neutral polarity Fault Flash Flash
1 Hour Lockout
Normal Operation Off On
Low Pressure Switch Closed Fault On Flash
Low Pressure Switch Open Fault Flash On
Open Limit Switch Fault Flash Off
High Pressure Switch Open or
Closed Fault
Off Flash
Diagnostic Description
Low flame Sensor Signal
Flame Present
On
FAULT CONDITIONS
Alternating Flash
Yellow LED
Continuous Flash
¢710733©¤
For 97+ Modulating Gas Furnaces
WIRING DIAGRAM
Refer to the Installation Istructions
provided with the kit for the proper
heating and cooling speeds for your
application.
710733A
1008
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
If any of the original wire as supplied with the
furnace must be replaced, it must be replaced
with wiring material having a temperature
rating of at least 105 degrees C.
Use copper conductors only.
-
1
Westinghouse KG7T(C,L) Product information
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