Download 2 - ICM Controls

ICM2805 WIRING DIAGRAM
For 80+ and 90+ Model Furnaces
These wires are not present on all models.
MOTOR PLUG
6
5
WHITE
BLACK
BLACK
4
BLUE
3
ORANGE
2
BLACK
RED
1
BLACK
BLACK
M1
M2
HUM
M3
HEAT
COOL
LI
EAC
INDUCER
XFMR
WHITE
RED
BLUE
ORANGE
BLACK
BLACK
1
4
2
5
3
6
IGNITOR
BLACK
HUM
EAC
NEUTRALS
L
WHITE
WHITE
BROWN
YELLOW
C
STATUS
3 OR 4 SPEED
MOTOR
1
4
7
2
5
8
3
6
9
TWIN
24V
Y
G
60
90
120
180
Y
C
COM
3 AMP FUSE
BLACK
BLACK W/ WHITE STRIPES
W
BLACK
120/240V
WHITE
G
24V
Y
VENT SAFETY
SWITCH (SELECT
MODELS Only)
WHITE W/ BLACK STRIPES
TRANSFORMER
R
ROOM
THERMOSTAT
GROUND
BLOWER
DOOR
SWITCH
AIR CONDITIONER
CONDENSING UNIT
W
FLAME SENSOR
R
BLOWER OFF
FLAME
GAS
VALVE
RED
C
ML
MH
H
120/240 INPUT
VOLTAGE
JUNCTION BOX
BLACK
WHITE
ORANGE
ORANGE
BLUE
VENT PRESSURE
SWITCH
(93+ MODELS ONLY)
PRESSURE
SWITCH
VENT SAFETY
SWITCH (SELECT
MODELS ONLY)
FLAME ROLL-OUT
SWITCH
(ALL MODELS)
BLUE
AIR SUPPLY
LIMIT SWITCH
(ALL MODELS)
BLOWER DECK
SWITCH (SELECT
MODELS ONLY)
FLAME ROLL-OUT
SWITCH (SELECT
MODELS ONLY)
FAULT CONDITION
STATUS RED LIGHT
Power ON
ON
Limit circuit open
1 FLASH
Pressure switch stuck open
2 FLASHES
Pressure switch stuck Closed
3 FLASHES
Ignition failure (check ground)
4 FLASHES
115 VAC & neutral reversed or no ground
5 FLASHES
NOTE:
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 C.
False flame or gas relay shorted
Continuous
Use copper conductors only.
Power OFF
OFF
FAULT CONDITION
FLAME YELLOW LIGHT
Low flame sensor signal
Continuous flash
• Low Voltage
Flame present
ON
• High Voltage
LEGEND
• Field Wiring
Factory Wiring:
LAPP47-1