ICM Controls ICM2811 Installation, Operation & Application Manual page 4

Circulator
Blower
COOL
24
VAC
3
P1 12-Pin Connections
1 = Limit switch (output)
2 = Flame sense input
3 = 24 VAC input
4 = Pressure switch (output)
5 = Rollout swicth (output)
6 = 24 VAC common
7 = Limit switch input
8 = Common
9 = Gas valve common
10 = Pressure switch (input)
11 = Rollout switch (input)
12 = Gas valve output
Electronic
Air Cleaner
PARK PARK LINE
HEAT EAC XFMR
24 LIM LIM RO
COM IN OUT IN
6 7 1 11
Limit Rollout
Switches Switches
(N.C.) (N.C.)
P1
P2 2-Pin Connections
1 = Inducer blower
2 = Hot surface ignitor
Chasis Earth
ground ground
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
Wiring Diagram
Humidifier
120 VAC
Hot Neutral
HUM
RO PS PS
OUT IN OUT GV
GV (C)
5 10 4 12 9
Gas Valve
C NO
PRS
(N.O.)
24V SEC
PRI
www.icmcontrols.com
Legend:
Ignitor
Inducer
(120 VAC)
N.C. = Normally closed switch
N.O. = Normally open switch
FS GND
2 8
Flame
Sensor
Probe
P2
LINE NEUTRALS
HSI
IDM
Low voltage (24 VAC)
High voltage (120 VAC)
Compressor Contactor
Twinning with two
ICM2811 controls only
CAP
BLOWER
COOLING
SPEED
HEATING
SPEED
Chasis
ground
LIAF269