Installation Instructions Comfort Bridge Models
54
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!
D
ISCONNECT
ALL
POWER
BEFORE
SERVICING
OR
INSTALLING
THIS
UNIT
.
M
ULTIPLE
POWER
SOURCES
MAY
BE
PRESENT
. F
AILURE
TO
DO
SO
MAY
CAUSE
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
0
1
4
0
F
0
2
4
5
3
-
A
F
R
O
N
T
C
O
V
E
R
P
R
E
S
S
U
R
E
S
W
I
T
C
H
N
O
C
F
U
S
E
3
A
M
I
C
R
O
T
O
P
S
2
(
1
2
)
T
R
(
1
1
)
G
H
I
C
T
H
(
4
)
24V THERMOSTAT CONNECTIONS
V
A
L
V
E
G
A
S
T
R
A
N
S
F
O
R
M
E
R
H
L
I
(
1
)
Y
H
L
O
(
1
0
)
G
N
D
(
5
)
M
V
L
(
1
3
)
N
O
W
C
R
C
O
N
T
R
O
L
S
A
U
T
O
R
E
S
E
T
A
U
X
I
L
I
A
R
Y
L
I
M
I
T
L
I
M
I
T
C
O
N
T
R
O
L
S
M
A
N
U
A
L
R
E
S
E
T
R
O
L
L
O
U
T
P
R
E
S
S
.
S
W
I
T
C
H
H
I
G
H
F
I
R
E
C
P
S
O
(
7
)
S
W
I
T
C
H
L
O
W
F
I
R
E
P
R
E
S
S
.
M
V
H
(
1
4
)
D
E
H
U
M
G
N
D
P
S
1
(
2
)
L
I
M
I
T
C
O
N
T
R
O
L
A
U
T
O
R
E
S
E
T
P
R
I
M
A
R
Y
2
4
V
A
C
N
O
P
M
M
V
C
(
8
)
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
M
O
D
U
L
E
C
B
L
W
R
A
I
R
I
N
D
O
O
R
C
IR
C
U
L
A
T
O
R
T
X
(
3
)
R
X
(
2
)
+
V
D
C
(
1
)
G
N
D
(
4
)
R
T
O
M
I
C
R
O
T
O
T
O
+
V
D
C
E
A
C
I
D
N
E
U
T
R
A
L
W
I
R
I
N
G
T
O
U
N
I
T
L
INTEGRATED CONTROL MODULE
H
O
T
S
U
R
F
A
C
E
I
N
D
U
C
T
O
R
C
O
I
L
G
N
D
B
L
W
R
N
E
U
T
R
A
L
W
A
R
N
I
N
G
:
G
R
O
UN
D
E
D
.
O
V
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R
C
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R
R
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T
P
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D
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V
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C
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M
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B
E
P
R
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P
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R
L
Y
S
W
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T
C
H
N
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U
T
R
A
L
E
L
E
C
T
R
O
N
I
C
A
I
R
(
O
N
S
O
M
E
M
O
D
E
L
S
)
I
G
N
I
N
D
H
I
D
IS
C
O
N
N
E
C
T
F
S
P
O
L
A
R
I
Z
E
D
A
N
D
L
I
N
E
N
E
U
T
R
A
L
J
U
N
C
T
I
O
N
B
O
X
B
L
W
R
I
N
D
L
O
N
I
N
D
O
O
R
A
I
R
C
L
E
A
N
E
R
D
O
O
R
N
E
U
T
R
A
L
INTEGRATED CONTROL MODULE
T
O
1
1
5
V
A
C
/
1
Ø
/
6
0
HZ
P
O
W
E
R
S
U
P
P
L
Y
W
I
T
H
1
1
5
V
A
C
I
G
N
IT
E
R
C
IR
C
U
L
A
T
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R
B
E
F
O
R
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S
E
R
V
I
C
I
N
G
.
F
L
A
M
E
S
E
N
S
O
R
DI
S
C
O
N
N
E
C
T
P
O
W
E
R
L
I
N
E
G
N
D
OR
BR
BK
WH
WH
PU
GY
YL
OR
BR
PK
RD
WH
BK
GY
GN
OR
RD
BK
GY
BL
N
O
2
1
.
S
E
T
H
E
A
T
A
N
T
I
C
I
P
A
T
O
R
O
N
R
O
O
M
T
H
E
R
M
O
S
T
A
T
A
T
0
.
7
A
M
P
S
.
PK
W
A
R
N
I
N
G
:
D
I
S
C
O
N
N
E
C
T
TRANSFORMER
40 VA
PU
GY
N
NO
3
BR
4
.
U
N
I
T
M
U
S
T
B
E
P
E
R
M
A
N
E
N
T
L
Y
G
R
O
U
N
D
E
D
A
N
D
C
O
N
F
O
R
M
T
O
N
.
E
.
C
.
A
N
D
L
O
C
A
L
C
O
D
E
S
.
C
O
L
O
R
C
O
D
E
S
:
1
SWITCH
PRESSURE
LOW FIRE
SENSOR
FLAME
G
N
G
R
E
E
N
GR
PRESSURE SWITCH
FRONT CO
VER
C
VAC
T
O
U
N
I
T
M
U
S
T
B
E
1
BL
RD
A
N
D
G
R
O
U
N
D
E
D
.
1
115
WH
S
W
I
T
C
H
(
P
R
E
S
S
.
)
F
I
E
L
D
S
P
L
I
C
E
F
I
E
L
D
G
N
D
L
O
W
V
O
L
T
A
G
E
F
IE
L
D
GN
BL
BR
WH
NO
LIMIT CONTRO
L
AUTO RE
SE
T PRIMARY
WH
1
OR
R
D
R
E
D
G
Y
G
R
A
Y
40 kBTU)
CONTRO
LS (SINGLE CONT
ROL ON
MANUAL RES
ET ROL
LOUT LIMIT
WH
L
PU
N
O
T
E
S
:
GY
PK
BK
5
SWITCH ASSEMBLY
ID BLOWER TWO-STAGE PRESSU
RE
OR
WH
S
E
R
V
I
C
I
N
G
.
W
I
R
I
N
G
E
Q
U
I
P
M
E
N
T
G
N
D
(
O
N
S
O
M
E
M
O
D
E
L
S
)
I
N
T
E
R
N
A
L
T
O
SWITCH
PRESSURE
HIGH FIRE
P
R
O
T
.
D
E
V
I
C
E
I
N
T
E
G
R
A
T
E
D
C
O
N
T
R
O
L
PK
C
.
U
S
E
C
O
P
P
E
R
C
O
N
D
U
C
T
O
R
S
O
N
L
Y
.
$
A
T
L
E
A
S
T
1
0
5
I
T
M
U
S
T
B
E
R
E
P
L
A
C
E
D
W
I
T
H
W
I
R
I
N
G
M
A
T
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R
I
A
L
H
A
V
I
N
G
A
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P
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A
T
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R
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A
T
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N
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O
F
3
.
I
F
A
N
Y
O
F
T
H
E
O
R
I
G
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N
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L
W
I
R
E
A
S
S
U
P
P
L
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D
W
I
T
H
T
H
E
F
U
R
N
A
C
E
M
U
S
T
B
E
R
E
P
L
A
C
E
D
,
PU
P
L
U
G
C
O
N
N
E
C
T
I
O
N
2
4
BK
C
D
O
O
R
O
P
E
N
)
(
O
P
E
N
W
H
E
N
D
O
O
R
S
W
I
T
C
H
C
O
M
P
A
R
T
M
E
N
T
B
L
O
W
E
R
S
W
I
T
C
H
(
T
E
M
P
.
)
GND
B
L
O
W
E
R
C
I
R
C
U
L
A
T
O
R
P
U
P
U
R
P
L
E
J
U
N
C
T
I
O
N
OR
4
0
V
A
P
K
P
I
N
K
Ø
/
6
0
H
Z
D
I
S
C
O
N
N
E
C
T
(WHITE-RO
DGE
RS)
GAS VALVE
TWO STAGE
2
.
M
A
N
U
F
A
C
T
U
R
E
R
'S
S
P
E
C
I
F
I
E
D
R
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L
A
C
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M
E
N
T
P
A
R
T
S
M
U
S
T
B
E
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E
D
W
H
E
N
S
E
R
V
I
C
I
N
G
.
O
V
E
R
C
U
R
R
E
N
T
H
I
V
O
L
T
A
G
E
(
1
1
5
V
)
C
O
N
N
E
C
T
O
R
2
C
I
R
C
U
I
T
L
O
W
V
O
L
T
A
G
E
(
2
4
V
)
YL
GND
VAC
CHASSIS GROUND
2
3
4
IGNITER
SURFACE
HOT
2
GND
B
K
B
L
A
C
K
YL
PU
C
I
N
D
U
C
T
O
R
C
O
I
L
B
L
B
L
U
E
C
BLOWER
DRAFT
INDUCED
W
H
W
H
I
T
E
PM
BK
24
1
1
5
V
A
C
/
1
O
V
E
R
C
U
R
R
E
N
T
BK
B
R
B
R
O
W
N
Y
L
Y
E
L
L
O
W
3
H
I
V
O
L
T
A
G
E
F
I
E
L
D
O
R
O
R
A
N
G
E
HI
T
E
R
M
I
N
A
L
OR
P
O
W
E
R
B
E
F
O
R
E
I
G
N
I
T
E
R
RD
BK
T
O
P
O
W
E
R
S
U
P
P
L
Y
W
I
T
H
BURNER COMPARTM
ENT
P
R
O
T
E
C
T
I
O
N
D
E
V
I
C
E
P
R
O
P
E
R
L
Y
P
O
L
A
R
I
Z
E
D
WH
BK
JUNCTION BOX
GN
GND
GND
PU
BL
HLI (3)
H
L
I
(
6
)
10
6
3
13
4
5
2
7
14
11
15
1
12
89
FUSE
3A
CENTER
RIGHT
LEFT
C
RAT
GND
GND
SAT
IGN
IND-HI
IND-LO
IND-N
IGN-N
LINE
NEUTRAL
DEYG
W
C
R
R1
2
NA
HUM
CONDEN
-SATE
ECM
6
1
6
1
6
1
FS
EAC
1
2
4
2
3
1
3
5
1
4
BL
BK
RD
GY
BK
BL
PU
IN
OUT
CONDENSATE
SWITCH
(OPTIONAL)
LIMIT
CONTRO
L
AUXILIARY
AUTO RE
SE
T
BLOWER COMP
ARTMENT
H
A
R
N
E
S
S
E
C
M
M
T
R
BLUETOOTH
BOARD
O
P
T
.
H
U
M
.
BR
O
P
T
.
H
U
M
.