44
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
H
IG
H
V
O
LTA
G
E
!
D
IS
CO
NNE
CT
AL
L
PO
WER
BE
F
O
RE
SE
R
V
IC
IN
G
OR
IN
S
T
A
LLI
N
G
TH
IS
UNI
T
.
M
U
LTI
P
L
E
PO
WER
S
O
U
RCE
S
MA
Y
BE
PR
E
S
EN
T
. F
AIL
U
RE
TO
DO
SO
MA
Y
CAU
S
E
PR
O
P
E
R
T
Y
DAM
AG
E
,
P
E
RS
O
NAL
INJ
URY
OR
DE
AT
H
.
T
O +VDC
TO
M
ICRO
TO
R
GND (4)
+ VDC (1)
RX (2)
TX (3)
C
IRCULATOR
I
NDOOR
AIR
BLWR
RD
GY
BL
BK
H
UMIDIFIER
G
ND
PROTECTION DEVICE
HEAT OFF
DELAY
BURNER COMPARTMENT
24 V
3 A
BL
G
POWER SUPPLY WITH
LINE
RD
12
TO
C
2
B
K
RD
UNUSED
4
IGNITER
FLAME SENSOR
INTEGRATED CONTROL MODULE
BR
YL
TE
RMINAL
HI
BL
OR OR ANG E
MVH (14)
PM
ECM M T
R
H
ARNESS
NO
24 VAC
H
I VOLTAGE FIELD
115kBTU MODELS
D
IP
S
W
IT
CHE
S
PS1 (2)
3
YL YELLO W
CIRCULATOR
BK
BR BROW N
4
B
K
OVERCURRENT
24V HUM.
0140F00606
R
EV. A
IGNITER
115 VAC/ 1
BLO
WER COMPARTMENT
BK
PM
1
W H W HITE
BK
FUSE
15
EAC
C
2
BL BLUE
6
115 VAC
INDUCTOR COIL
W H
YL
GND
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)
Ø /60 HZ POW ER SUPPLY W ITH
ADJUST
TO 115VAC/ 1
BK BLACK
DEHUM
5
HEAT
LINE
IN
T
E
G
R
A
T
E
D
CO
NT
R
O
L
M
O
DU
L
E
GND
24V HUM.
2
WH
BK
MVC (8)
2
NEUTRAL
RD
W H
DOOR
LOW FIRE PRESS.
SWITCH
4
3
2
C
H
AS
SI
S G
R
O
U
N
D
W H
LOW VOLTAGE (24 V)
HUM
DEHUM
2
HI VOLTAGE (115 V)
PSO (7)
W H
2. MANUFACTURER'S SPECIFIED REPLACEMENT PARTS MUST BE
USED WHEN SERVICING.
ONLY
C
AIR CLEANER
HIGH FIRE
PRESS. SWTICH
INDOOR
HUMIDIFIER
PK PINK
WH
9
IND LO
14
Y2
40 VA
3
HU
M
YL
JUNCTION
BLWR
PU PURPLE
1
CIRCULATOR
BLOW ER
R
1
JUNCTION BOX
SW ITCH (TE MP.)
NEUTRAL
115kBTU MODELS
BLOWER
COMPARTMENT
DOOR SWITCH
(OPEN WHEN
DOOR OPEN)
C
LINE
YL
NEUTRAL
4
NEUTRAL
11
C
FS
2
PLUG CONNECTIO N
EAC
DISCONNECT
PU
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°C. USE COPPER CONDUCTORS ONLY.
RD
INTEG RATED CO NTROL
PROT. D EVICE
8
W H
ONLY
24 V THERMOSTAT CONNECTIONS
W1
W1
INTERNAL TO
70kBTU,90kBTU,
NO
EQUIPMENT GND
MVL (13)
O
2ND STG DLY
W H
RD
YL
R
BL
2
5
GND (5)
BK
IND HI
IGN
PK
HLO (10)
70kBTU,90kBTU,
NOTES:
PU
AIR
Y1
Y1
GY GRAY
ELECTRONIC
RD RED
Y2
RD
NEUTRAL
1
HLI (1)
W H
SWITCH
NO
WH
TRANSFORMER
13
1
OR
3
OVERCURRENT PROTE CTION DEVICE
T-STAT
5
BR
BK
GN
3
LOW VOLTAGE FIE LD
W2
DELAY
7
FIELD GND
FIELD SPLICE
SW ITC H (PRESS.)
1
C
W2
W H
NEUTRAL
BLWR
J
U
NCT
IO
N
B
O
X
3
GND
FS
1
4
BK
GAS
VALVE
2
4
V
T
H
ERM
O
STA
T
C
O
N
N
EC
T
IO
N
S
PU
INDUCTOR COIL
TH (4)
C
HI
1
24V
H
U
M
.
G
YL
C
TR (11)
YL
GR
GN GREEN
HOT SURFACE
P
S2 (12)
1
IN
T
E
GRA
T
E
D
CO
NT
RO
L
M
O
D
U
L
E
COLOR CODES:
4. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO
N.E.C. AND LOCAL CODES.
YL
DIAGNOSTIC
LED'S
RD
O
3
DE
H
U
M
10
OR
NO
NEUTRAL
SEE
NOTE 5
WH
COOL
ID
TO
MICRO
PU
AUTO RESET
AUXILIARY
LIMIT CONTROL
YL
1. SET HEAT ANTICIPATOR ON RO OM THERMOSTAT AT 0.7 AMPS.
FUSE 3 A
2
*MVC8_AA W
IRING
D
IAGRAM
