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WIRING DIAGRAMS
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
GMS8
CAP
BK
(
HI
)
AUX ILI ARY
INTEGRATED
PROPERLY POLARIZED AND GROUNDED.
SERVICING.WIRING TO UNIT MUST BE
WARNING:DISCONNECT POWER BEFORE
FUSE
GC
6
3
9
12
W
YRR
5
4
12
8
7
11
10
OR
LED
DIAGNOSTIC
LINE-H XFMR-H HEAT- H COOL-H
CONTROL MODULE
BK
115 VAC HOT AND PARK TERMINALS
2
1
GR
PU
XFMR
BK
BK
BK
115V
24V
115 VAC NEUTRAL
BR
LIMITS
WH
WH (N)
RD (LOW)
OR (MED LOW)
BL (MED)
CICULATOR BLOWER
24V THERMOSTAT CONNECTIONS
RO2 (11)
LIMIT
GND (8)
HUM IDIFI ER
XFMR (6)
GND
G
C
W
Y
TO
MICRO
R
MV (12)
MVC (9)
AUXIL IARY
LIMIT CONTROL S
PS (10)
PSO (4)
HLI (7)
HLO (1)
CONTROL MODULE
INTEGRATED
NO
SWITCH
PRESSURE
ID BLOWER
VA LVE
M1
GAS
C2
C
AUTO RESET
PRIMARY
MANUAL RESET ROLLOUT
LIMIT CONTROL(S)
115 VAC
FLAME SENSOR
FP (2)
XFMR-H
XFMR (3)
RO1 (5)
24 VAC
HOT SURFACE
IGNITER
INTEGRATED CONTROL MODULE
BR
BR
COOL-H
IGN
IND
ID
BLWR
CIRCULATOR
HEAT-H
C
O
O
L
H
E
A
T
BLWR
TRANSFORMER
40 VA
CONTROL
XFMR-N
INTEGRATED CONTROL MODULE
CI R-N
0140F00119-C
5. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO N.E.C. AND LOCAL CODES.
ON SOME MODELS
HUMIDIFIER
24 VAC
INDUCED DRAFT
C. USE COPPER CONDUCTORS ONLY.
BLOWER COMPARTMENT
BURNER COMPARTMENT
REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE
3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE
CORRECT COOLING CFM. (SEE SPEC SHEET FOR AIR FLOW CHART)
REQUIREMENTS SO AS TO PROVIDE THE CORRECT HEATING TEMPERATURE RISE AND THE
4. BLOWER SPEEDS MUST BE ADJUSTED BY INSTALLER TO MATCH THE INSTALLATION
INTEGRATED CONTROL
INTERNAL TO
2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING.
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
BLOWER
GAS VALVE
PRIMARY LIMIT
BK
GR
WH
IGNITER
SURFACE
HO T
M1
PU
WH
RD
WH
15 PIN PLUG
C
NO
SWITCH
PRESSURE
BR
C2
SENSOR
FLAME
BK
W
H
ROLLOUT LIMITS
RAPID FLASHES = REVERSED 115 VAC POLARITY/VERIFY GND
1 FLASH = SYSTEM LOCKOUT (RETRIES/RECYCLES EXCEEDED)
7 FLASHES = LOW FLAME SIGNAL
5 FLASHES = FLAME SENSE WITHOUT GAS VALVE
4 FLASHES = OPEN HIGH LIMIT
3 FLASHES = PRESSURE SWITCH STUCK OPEN
2 FLASHES = PRESSURE SWITCH STUCK CLOSED
STEADY ON = NORMAL OPERATION
OFF = CONTROL FAILURE
5
0
1
2
3
4
PU
6 FLASHES = OPEN ROLLOUT
COLOR CODES:
PU PURPLE
OR ORANGE
YL YELLOW
6
7
C
BK BLACK
GR GREEN
BR BROWN
PK PINK
RD RED
GY GRAY
BL BLUE
WH WHITE
PU
RATING OF AT LEAST 105
NOTES:
TO 115VAC/ 1
Ø /60 HZ POWER SUPPLY WITH
OVERCURRENT PROTECTION DEVICE
JUNCTION BOX
MUST BE
WARNING:
SWITCH
WIRING TO UNIT
BEFORE SERVICING.
DISCONNECT POWER
LINE-H
DOOR
AND GROUNDED.
POLARIZED
PROPERLY
LGND
LINE-N
DISCONNECT
N
SWITCH (TEMP.)
FIELD SPLICE
SWITCH (PRESS.)
PROT. DEVICE
OVERCURRENT
EQUIPMENT GND
TERMINAL
JUNCTION
HI VOLTAGE FIELD
HI VOLTAGE (115V)
LOW VOLTAGE FIELD
LOW VOLTAGE (24V)
PLUG CONNECTION
IGNITER
FIELD GND
IND-N
IGN-N
JUNCTION
BOX
OVERCURRENT PROTECTION
POWER SUPPLY WITH
TO 115 VAC/ 1/60HZ
GND
LINE-N
LINE H
DEVICE
DOOR SWITCH
WH
BK
SWITCH LOCATED IN BLOWER
COMPARTMENT ON SOME MODELS
RD
RD
RD
BL
YL
YL
RD
BL
BL
PU
YL
YL
BR
OR
OROR
YL
YL
RD RD
WHWH
WH
YL
OR
BK
YL
BR
WH
(SINGLE CONTROL ON SOME MODELS)
(SINGLE CONTROL ON SOME MODELS)
24 VAC
HUMIDIFIER