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.
34
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
NO
2
FUSE
3
A
1. SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0.7 AMPS.
YL
MANUAL RESET
AUXILIARY
LIMIT CONTROL
PK
TO
M ICRO
ID
CO OL
PU
GY
SE E
N OTE 5
N
NEUTRAL
NO
BL
10
DE
H
U
M
3
O
NO
PK
DIAGNO STIC
LED 'S
BR
4. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO
N.E.C. AND LOCAL CODES.
L
COLOR CODES:
IN
T
E
G
R
A
T
E
D
C
O
NT
RO
L
M
O
D
U
LE
1
LOW FIRE
PRESSURE
SWITCH
PS2
(12)
FLAME
SENSOR
HOT
SURFACE
GN GREEN
GR
OR
TR (11)
FRONT COVER
PRESSURE SWITCH
C
YL
G
24V
HU
M
.
1
HI
C
TH
(4)
INDUCTOR
COIL
BL
24
V
T
H
E
R
M
O
S
T
A
T C
O
N
N
E
C
T
IO
N
S
GAS
VA LVE
RD
4
1
FS
GN
JU
NC
T
IO
N
B
O
X
BLWR
NEUTRAL
WH
W2
C
1
SW ITCH (PRESS.)
FIELD SPLICE
FIELD GND
7
DELAY
W 2
LOW VOLTAGE FIELD
3
GN
BK
GY
OVERCURRENT
PROTECTION
DEVICE
3
BL
BR
1
13
TRANSFORMER
WH
NO
AUTO RESET PRIMARY
LIMIT CONTROL
SW ITCH
W H
HLI
(1)
1
NEUTRAL
OR
Y2
RD RED
ELECTRONIC
GY GRAY
Y1
MANUAL RESET ROLLOUT LIMIT
CONTROLS (SINGLE CONTROL ON
45 kBTU)
WH
Y1
AIR
L
PU
NOTES:
70kBTU,90kBTU,
HLO (10)
GY
PK
IGN
IND
HI
BK
G ND (5)
5
2
GY
R
ID BLOWER TWO-STAGE PRESSURE
SWITCH ASSEMBLY
OR
OR
W H
2ND S TG DLY
MVL
(13)
EQUIPMENT GND
NO
70kBTU,90kBTU,
INTERNAL TO
W 1
W1
24 V T HERMOSTAT CONNE CTIONS
ONLY
PU
HIGH
FIRE
PRESSURE
SWITC
PROT. DEVICE
INTEGRATED C ONTROL
PK
3. IF ANY OF THE O RIGINAL W IRE AS SUPPLIED W ITH THE
FURNACE MUST BE REPLACED, IT MUST BE REPLACED WITH
W IRING MATER IAL HAVING A TEMPERATURE RATING OF AT
LEAST 105°C. USE CO PPER CONDUCTORS ONLY.
PU
DISCONNECT
EAC
PLUG CONNECTION
2
FS
C
11
FRONT CO VE R
PRE SS. S W ITCH
NEUTRAL
4
NEUTRAL
BR
BK
LINE
C
BLO WER
COMPARTMENT
DOO R SWITCH
(OPEN W HEN
DOOR OPEN)
115kBTU M ODELS
NEUTRAL
SWITCH (TEMP.)
JUNCTION BOX
GND
1
R
CIRCULATOR
BLOW ER
1
PU PURPLE
BLW R
JUNCTION
OR
40 VA
Y2
14
IND LO
WH
N
PK PINK
Ø
/60
HZ
HUMIDIFIER
INDOOR
HIGH FIR E
PRE SS. S W TICH
DISCONNECT
TWO STAGE
GAS VALVE
AIR CLEANER
C
ONLY
2. MANUFACTURER'S SPECIFIED REPLACEMENT PAR TS MUST BE
USED W HEN SERVICING.
W H
PSO (7)
OVERCURRENT
HI VOLTAGE ( 11 5V)
2
DEH UM
HUM
2 CIRCUIT
CONNECTOR
LOW VOLTAGE (24V)
YL
GND
W H
C
H
AS
SIS
G
R
O
U
N
D
2
3
4
LOW FIR E PRES S.
SW ITCH
DOOR
WH
OR
NEUTRAL
2
MVC (8)
HOT
SURFACE
IGNITER
RD
WH
2
24V HU M.
GND
IN
T
E
G
R
A
T
E
D
CO
NT
RO
L
M
O
D
U
L
E
LIN E
HEAT
5
DEHUM
BK BLACK
TO 115VAC / 1
ADJ U ST
Ø /60 HZ POW ER SUPPLY W ITH
5. TO RECALL THE LAST 6 FAULT S, MO ST RECENT TO LEAST
RECENT, DE PRESS SW ITCH FOR MORE THAN 2 SECONDS W HILE
IN STA NDBY (NO THERMOSTAT INPUTS)
G ND
YL
PU
C
INDUCTOR COIL
115 VAC
6
BL BLUE
2
C
EAC
INDUCED
DRAFT
BLOWER
15
FUSE
BK
W H W HITE
1
PM
BK
BLOWER COMPARTMENT
115
VAC/
1
IGNITER
0140F00530
REV. B
24V HUM.
OVERCURRENT
BK
4
BR BROW N
BK
CIRCULATOR
C
YL YELLOW
3
PS1 (2)
D
IP
SWI
T
C
H
ES
115kBTU M ODELS
HI VOLTAGE FIELD
24 VAC
NO
ECM MTR
HARNESS
PM
MVH (14)
OR ORANGE
BR
HI
TERMINAL
OR
GY
IN TEG RATED CON TR O L MO DU LE
FLAME SENSOR
IGNITER
4
UN USE D
RD
BK
2
TO
12
RD
LINE
POWER
SUPPLY
WITH
G
BR
24 V
3 A
BURNER COMPARTMENT
HEAT O FF
DELAY
PROTECTION
DEVICE
GND
HUMIDIFIER
BK
BL
GY
RD
BLWR
AIR
INDOO R
CIRCULATOR
TX (3)
RX (2)
+ VDC (1)
GND (4)
TO
R
TO
MICRO
TO +VDC
R
G
O
3
9
8
1
*CVC9/*MVC95_AA
