WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
HI
G
H V
O
LT
A
G
E!
DI
SCO
NNE
CT
AL
L
PO
W
ER BE
FO
RE
S
ERV
ICI
NG
O
R I
NS
TA
LL
IN
G
T
HI
S
U
N
IT
. M
U
LT
IPL
E PO
W
ER
SO
U
R
C
ES M
AY B
E P
R
ESEN
T.
F
A
IL
U
R
E
TO
DO
S
O
M
AY
CAUS
E P
RO
PE
RT
Y DAM
AG
E,
P
ERS
O
NAL
INJ
UR
Y O
R DE
AT
H
.
54
GN
GND
RD
GN
24
VAC
115
VAC
GND
GR
D
0140F02625-A
BK
EAC
HUMIDIFIER
ID
NEUTRAL
WIRING TO UNIT
L
INT
EG
RA
TE
D CO
NT
RO
L M
O
DUL
E
HOT SURFACE
GND
BLWR
NEUTRAL
WARNING:
GROUNDED.
OVERCURRENT PROTECTION DEVICE
MUST BE PROPERLY
SWITCH
NEUTRAL
ELECTRONIC
AIR
IGN
IND
DISCONNECT
FS
POLARIZED AND
NEUTRAL
LINE
NEUTRAL
JUNCTION BOX
BLWR
IND LO
N
INDOOR
AIR CLEANER
HUM
DOOR
NEUTRAL
INT
EG
RA
TE
D CO
NT
RO
L M
O
DUL
E
TO 115VAC/ 1Ø /60 HZ POWER SUPPLY WITH
115 VAC
HUM-OUT
IGNITER
CIRCULATOR
BEFORE SERVICING.
FLAME SENSOR
DISCONNECT POWER
LINE
GND
BR
WH
GY
YL
PK
GY
LIMIT CONTROL
AUXILIARY
AUTO RESET
PK
WARNING:DISCONNECT
40 V
A
TR
AN
S
FO
R
M
ER
N
G
C
SENSOR
FLAME
1 ROLL OUT SWITCH
SOME UNITS MAY HAVE
TO UNIT MUST BE
PU
BK
AND GROUNDED.
JUNCT
IO
N
B
O
X
WH
BL
BR
NO
LIMIT CONTROL
AUTO RESET PRIMARY
WH
1
L
GY
BK
ID BLOWER PRESSURE SWITCH
SERVICING. WIRING
PK
RD
L
N
DOOR OPEN)
(OPEN WHEN
DOOR SWITCH
COMPARTMENT
BLOWER
GND
BLOWER
CIRCULATOR
Ø /60 HZ
DISCONNECT
GAS VALVE
OVERCURRENT
CONNECTOR
2 CIRCUIT
GND
WH
CHASSIS
GROUND
IGNITER
SURFACE
HOT
2
YL
C
BLOWER
DRAFT
INDUCED
BK
BLOWER COMPARTMENT
115 VAC/ 1
BK
ECM MTR
HARNESS
POWER BEFORE
BK
TO
POWER SUPPLY WITH
BURNER COMPARTMENT
PROTECTION DEVICE
PROPERLY POLARIZED
NOTES:
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED
WHEN SERVICING.
3. 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
v
C. USE COPPER
CONDUCTORS ONLY.
4. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO N.E.C.
AND LOCAL CODES.
5. TO RECALL THE LAST 6 FAULTS, MOST RECENT TO LEAST RECENT,
DEPRESS SWITCH FOR MORE THAN 2 SECONDS WHILE IN STANDBY
(NO THERMOSTAT INPUTS)
COLOR CODES:
PK PINK
BR BROWN
WH WHITE
BL BLUE
GY GRAY
RD RED
YL YELLOW
OR ORANGE
PU PURPLE
GN GREEN
BK BLACK
1
2
3
4
5
6
7
8
9
10
11
12
READ CODES FROM LEFT TO RIGHT
EAC
-H
XF
MR
-H
CI
RC-
H
LIN
E-
H
E20
E39
E2
E1
E15
E8
E5
E4
E3
E7
E6
LE
FT
C
EN
TER
RI
G
HT
SW3
3
1
3
1
3
SW1
R223
SW2
6
R226
TW
IN
DE
HUM
24
V
HUM
E21
E34
E24
W/W1 R
G
R
Y/Y1 Y2
RD
BL
RD
YL
YL
BK
BK
BK
WH
WH
WH
GY
OR
GN
PU
PU
PU
NE
UT
2
NE
UT
1
CI
RC-
N
EAC
-N
HUM
-N
XF
MR
-N
LIN
E-
N
GND
MICRO
TO
TR (7)
G
C
C
TH (3)
24
V T
H
ERM
O
ST
A
T CO
NNE
CT
IO
N
S N.
E.C.
CL
A
SS
2
W
IRE
VALVE
GAS
TRANSFORMER
HLI (8)
Y2
Y1
RLO (6)
O
MV (10)
W1
R
MANUAL RESET ROLLOUT LIMIT SWITCH
PRESS. SWTICH.
C
DEHUM
PS1(5)
AUTO RESET
PRIMARY LIMIT
24 VAC
NO
HI
MVC (11)
BLWR
AIR
INDOOR
CIRCULATOR
R
TO
MICRO
TO
TO
+VDC
40 VA
INTERGRATED CONTROL MODULE
RLI (12)
AUTO RESET AUX LIMIT
HLO (1)
Seven Segment Display
Error Code Status
Seg#3
Seg#2
Seg#1
Internal Faults or IRQ Loss
E
E
E
Lockout Due to Excessive Retries or Recycles
E
E
0
Pressure Switch Stuck Closed
E
E
1
Pressure Switch Open
E
E
2
Open High Limit Switch
E
E
3
Flame Detected When no Flame Should be Present
E
E
4
Open Fuse
E
E
5
Low Flame Signal
E
E
6
Ignitor Relay Fault
E
E
L
Reversed Line Polarity or Grounding Error
E
E
A
Internal Gas Valve Error
E
E
b
External Gas Valve Error
E
E
C
Open Rollout Switch
E
1
1
Ignitor Open
E
E
n
Inducer Relay Error
E
E
j
TWIN Error
E
E
H
RD
C2
MI
1
2
BK
BK
BK
WH
WH
WH
WH
Grounding Error
E
1
0
5
2
1
4
3
RD
BK
OR
BL
YL
RD
BL
OR
BK
YL
T1
T2
T3
T4
T5
COM
RD
SWITCH (PRESS.)
FIELD SPLICE
FIELD GND
EQUIPMENT GND
INTERNAL TO
PROT. DEVICE
INTEGRATED CONTROL
PLUG CONNECTION
SWITCH (TEMP.)
JUNCTION
LOW VOLTAGE (24V)
OVERCURRENT
TERMINAL
IGNITER
LOW VOLTAGE FIELD
HI VOLTAGE (115V)
HI VOLTAGE FIELD
