41
IGNITOR
INDUCER
FLAME SENSOR
C
VENT
LIMIT
DOOR
SWITCH
R
FLAME
ROLLOUT
GAS
VALVE
SUPPLY
AIR LIMIT
PRESSURE
SWITCH
PRESSURE
SWITCH
RCYGW
LOW
ML
MH
HIGH
EAC
L1
XFMR
HUM
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
COM
3 AMP FUSE
24V
24 V
120 V
WHITE
BLACK
WHITE W/ BLK STRIPES
BLK W/ WHITE STRIPES
1234
1234
L1A
NEUTRALS
R
C
TX
RX
W
COM
1
2
1
2
1
2
1
2
BLOWER
LIMIT
BLOWER
LIMIT
9-PIN HOUSING (5)
9-PIN PLUG (16)
11
22
33
44
55
66
77
88
99
TORQUE
BLACK
WHITE
RC Y1 TWINDEHUM
HP(PWM)
SPEED
COMMON
PWM
MODE
NONE
NONE
MOTOR
CONTROL
BOARD
1185-200
R
C
GND
RX
TX
W
W
W
TX
RX
GND
C
R
BLUE
3/4 AND 1HP
MOTORS ONLY
BLACK
ORANGE
RED
ORANGE
BROWN
WHITE
BLUE
ORANGE
BLACK
BLACK
BLACK
GREEN
6-PIN
PLUG
BLACK
2-PIN HOUSING
BLACK
BLACK
BLACK
BLACK
WHITE
BLACK
BLACK
GREEN
YELLOW
RED
BLWR OFF
DELAY
BLUE
BLUE BLUE
GREEN
YELLOW
TX
RX
R
C
COM
W
TX
RX
R
C
COM
W
WHITE
YELLOW
RED
YELLOW
BLUE
BLUE
BLUE
WIRING DIAGRAM
7113920
0714
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
Refer to the Installation Instructions
provided with the furnace for the
proper heating and cooling speeds
for your application.
If any of the original wire as supplied with
the furnace must be replaced, it must be
replaced with wiring material having a
temperature of at least 105 C.
Use copper conductors only.
Diagnostic Description
Green LED Red LED
L1 / Neutral Polarity FaultFlash Flash
1 Hour Lockout
nOnOnoitarepO lamroN
Pressure Switch Closed Fault On Flash
Pressure Switch Open Fault Flash On
Diagnostic Description
Low Flame Sensor Signal
Flame Present
FAULT CONDITIONS
Yellow LED
Continuous Flash
On
Alternating Flash
For High Efficiency Fixed Speed Blower 90+
Single Stage Furnaces
Figure 34.
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