Fig.
11—Furnace
Wiring
Diagram
A99404
PC
B
PL
7
3
2
1
6
5
4
98
7
G
R
Y
W
C
HUM
EA
C
-2
TRA
N
FS
E
NO
T
E
#
5
GV
NO
T
E
#1
1
LS
PR
S
(W
HE
N US
E
D
)
LG
P
S
GR
N
JB
LE
G
E
N
D
BL
W
R
BL
O
W
ER
M
O
T
O
R
R
E
L
A
Y,
SPST
-(
N
.O
.)
BL
W
M
BL
O
W
ER
M
O
T
O
R
CA
P
C
A
P
A
C
IT
O
R
C
P
U
M
IC
R
O
PR
O
C
ESSO
R
AN
D
C
IR
C
U
IT
R
Y
EA
C
-1
E
L
E
C
T
R
O
N
IC
AI
R
C
L
EAN
ER
C
O
N
N
EC
T
IO
N
(
1
1
5
V
A
C
1
.5
AMP MA
X.
)
E
A
C
-2
E
L
E
CT
RO
NI
C
A
IR
C
L
E
A
N
E
R
CO
NN
E
C
T
IO
N
(
C
O
M
M
O
N)
FL
FU
S
E
L
IN
K
F
R
S
F
L
AME R
O
L
L
O
U
T
SW
. -
M
AN
U
A
L
R
ESET
, SPST
-(
N
.C
.)
F
S
E
F
L
A
ME PR
O
V
IN
G
EL
EC
T
R
O
D
E
F
U
1
F
U
SE,
3
AMP
, A
U
T
O
M
O
T
IV
E
BL
AD
E
T
YPE,
F
A
C
T
O
R
Y
IN
ST
AL
L
E
D
F
U
2
F
U
SE O
R
C
IR
C
U
IT
BR
EAKER
CURRE
N
T
I
N
T
E
R
R
UP
T
DE
V
ICE
(F
IE
L
D
I
N
ST
AL
L
E
D
& SU
PPL
IE
D
)
G
N
D
EQ
U
IPMEN
T
G
R
O
U
N
D
G
V
G
A
S
V
A
L
V
E
-RE
DUND
A
N
T
O
P
E
R
A
T
O
R
S
G
V
R
G
AS
V
A
L
VE R
E
L
A
Y,
D
PST
-(
N
.O
.)
H
I/
L
O
B
L
O
W
E
R
M
O
T
O
R
SPEED
C
H
AN
G
E
R
E
L
A
Y,
SP
D
T
H
S
I
H
O
T
S
URF
A
C
E
I
G
NI
T
O
R
(1
15
V
A
C)
H
S
IR
H
O
T
SU
R
F
A
C
E I
G
N
IT
O
R
R
E
L
A
Y,
SPST
-(
N
.O
.)
H
U
M
2
4
V
A
C
H
U
M
ID
IF
IER
C
O
N
N
EC
T
IO
N
(
.5
AM
P.
M
AX.
)
ID
M
INDUCE
D DRA
F
T
M
O
T
O
R
ID
R
INDUCE
D DRA
F
T
RE
LA
Y
,SPST
-(
N
.O
.)
IL
K
B
L
O
W
E
R
A
C
C
ESS P
A
N
E
L
I
N
T
E
R
L
O
C
K SW
IT
C
H
, SPST
-(
N
.O
.)
JB
JU
NCT
IO
N B
O
X
L
E
D
L
IG
H
T
-E
M
IT
T
IN
G
DI
O
D
E
F
O
R
S
T
A
T
US
CO
DE
S
L
G
PS
L
O
W
G
AS
PR
ESSU
R
E
SW
IT
C
H
,
SPST
-(
N
.O
.)
L
S
L
IMI
T
SW
IT
C
H
,
A
U
T
O
R
ESET
, SPST
(N
.C
.)
O
L
A
U
T
O
-R
ESET
I
N
T
E
R
N
A
L
MO
T
O
R
O
VER
L
O
AD
T
E
MP
. SW
.
P
C
B
P
R
INT
E
D
CI
RC
UI
T
B
O
A
R
D
P
L
1
1
0
-C
IRCUI
T
P
C
B
C
O
N
N
E
C
T
O
R
P
L
2
2
-C
IRCU
IT
P
C
B
CO
NNE
C
T
O
R
PL
3
3
-C
IR
C
U
IT
AD
APT
ER
C
O
N
N
EC
T
O
R
PL
5
2
-C
IR
C
U
IT
AD
APT
ER
C
O
N
N
EC
T
O
R
P
L
6
2
-C
IRCU
IT
H
S
I,
P
C
B
CO
NNE
C
T
O
R
PL
7
9
-C
IR
C
U
IT
AD
APT
ER
C
O
N
N
EC
T
O
R
P
R
S
P
R
E
S
S
U
R
E
S
W
IT
C
H
, S
P
S
T
-(
N
.O
.)
T
EST
/T
W
IN
C
O
M
PO
N
E
N
T
T
EST
&
T
W
IN
T
E
R
M
IN
AL
T
R
A
N
T
R
A
N
S
F
OR
M
E
R
-115V
A
C
/24V
A
C
JUNCT
IO
N
U
N
M
A
R
KED
T
E
R
M
IN
AL
PC
B
T
E
R
M
IN
AL
F
A
CT
O
R
Y
WI
RI
NG
(
1
15
V
A
C
)
F
A
CT
O
R
Y
WI
RI
NG
(
2
4V
A
C
)
F
IE
L
D
WI
RI
NG
(
11
5
V
A
C
)
F
IE
L
D
WI
RI
NG
(
24
V
A
C
)
CO
NDU
CT
O
R
O
N
P
C
B
F
IE
L
D
WI
RI
NG
T
E
RM
IN
A
L
F
IE
L
D E
A
R
T
H
G
R
O
UND
E
Q
U
IP
M
E
N
T
GR
OU
N
D
F
IE
L
D S
P
L
ICE
P
L
UG
RE
CE
P
T
A
C
L
E
L1
L1
BL
W
R
H
I/LO
T
O
1
1
5V
A
C FI
E
LD DI
S
C
O
NNE
CT
NO
TE
#
4
EQ
U
IP
M
EN
T
G
R
O
U
N
D
SP
AR
E-
1
HE
A
T
SP
AR
E-
2
CO
O
L
NO
T
E
#
7
EA
C
-1
ST
AR
T
OL
HI
M
E
D HI
ME
D
L
O
LO
BL
W
M
S
C
HE
M
A
T
IC DI
A
G
R
A
M
(N
A
T
U
R
A
L
G
AS
& PR
O
PA
N
E)
1
HS
I
2
PL
6
3
PL
3
115
V
A
C
PR
1
TR
A
N
24V
A
C
1
2
T
EST
/T
W
IN
FU
1
NO
T
E
#
6
C
AP-
1
L2
FR
S
1
FR
S
2
LG
P
S
PL
7
PR
S
FS
E
9
1
5
CP
U
HS
IR
IDR
BL
W
R
Y
G
C
R
W
SEC
-1
H
I/L
O
GV
R
GV
R
-1
OM
OM
10
4
6
2
HU
M
N
E
UT
RA
L
L2
IL
K
FU
2
L1
IL
K
GN
D
GN
D
RE
D
BL
U
OR
N
WHT
WH
T
WH
T
RE
D
OR
N
WHT
GRN
RED
WHT
RE
D
GR
N
YEL
BL
U
BL
U
RE
D
WH
T
BL
K
T
EST
/T
WI
N
24V
FU
1
LE
D 1
1
2
3
4
5
6
7
8
91
0
1
2
3
4
5
J1
BL
O
W
ER
O
F
F
D
E
L
A
Y
JU
MPE
R
SEL
EC
T
YEL
BL
K
WHT
WH
T
GR
N
ID
M
2
1
HSI
WH
T
BL
K
BL
K
WH
T
WH
T
(
C
O
M
)
BL
K
GR
N
BL
K
WH
T
WH
T
2
1
PL
2
WH
T
BL
K
BL
K
L1
COO
L
SEC
-2
SEC
-1
EA
C
-2
SE
C
-2
NO
T
E
#
5
GV
8
9
6
5
2
3
7
4
8
1
7
3
22
5
18
0
13
5
90
PL
1
2
1
PL
5
PL
6
3
2
1
PL
3
L2
HEA
T
1
2
PL
5
CO
M
ID
M
DS
S
BVS
S
AL
S
FL
LS
(W
H
E
N US
E
D
)
N
O
T
U
SED
N
O
T
U
SED
NO
T
E
#
1
2
(W
HE
N
US
E
D
)
NO
T
E
#
1
0
NO
T
E
#
1
1
NO
T
E
#
1
1
(W
HE
N U
S
E
D
)
(W
HE
N US
E
D
)
NO
T
E
#1
0
FR
S
1
FR
S
2
FL
(W
HE
N U
S
E
D
)
NO
T
E
#
1
0
BVS
S
DS
S
(W
HE
N
US
E
D
)
NO
T
E
#1
2
OR
N
O
R
N
AL
S
(W
HE
N U
S
E
D
)
NO
T
E
#
1
0
OR
N
OR
N
NO
T
E
#12
11
WH
T
NO
T
US
E
D
PL
1
11
HS
IR
1
2
PL
2
ID
R
F
U
S
E
D
O
R
C
IRCUI
T
B
R
EAKER
DI
S
C
O
NNE
CT
S
W
IT
CH
(W
HE
N
RE
Q
'D)
NO
T
E
#
4
J2
NO
TE
S:
1.
If
a
n
y
of t
h
e or
ig
ina
l eq
ui
p
m
ent
wire
is rep
la
c
ed
use wire
ra
te
d
f
or 10
5
°
C.
2.
Ind
uc
er (
ID
M
) a
n
d
b
lo
w
e
r
(B
LW
M
) m
o
to
rs
cont
a
in int
er
na
l a
u
to
-r
eset
t
h
er
m
a
l o
v
e
rloa
d
sw
it
ch
es (
O
L)
.
3.
B
lo
w
e
r m
o
to
r s
p
e
e
d
se
lect
ions a
re f
o
r a
v
e
ra
g
e c
o
nd
ition
s,
see in
st
a
lla
ti
on
inst
ruct
ions f
o
r
d
e
ta
ils
on
op
tim
u
m
s
p
eed
s
e
lect
ion.
4.
Us
e only
cop
p
e
r wire
b
e
tw
een
t
h
e
d
is
connec
t sw
it
ch
a
n
d
t
h
e fur
na
ce
j
u
n
c
tion b
o
x (
JB
).
5.
Th
is w
ire m
u
st
b
e
c
o
nnect
ed
t
o
fur
na
ce sh
eet
m
e
ta
l f
or c
o
nt
ro
l t
o
d
e
tect
f
la
m
e.
6
.
Re
pl
ac
e
o
n
ly
w
ith
a 3
amp
f
u
se
.
7.
B
lo
w
e
r-
on
d
e
la
y
, g
a
s
hea
ting
45 s
econd
s,
co
oling
or hea
t p
u
m
p
2 se
cond
s.
8.
B
lo
w
e
r-
of
f d
e
la
y
, g
a
s h
e
a
ting
90,
135,
18
0
or 225
s
econd
s,
co
oling
or hea
t p
u
m
p
90
se
cond
s.
9.
Ig
nit
ion-
loc
k
out
will oc
cur a
ft
e
r f
our c
o
nsecut
iv
e
unsucc
essful t
ria
ls-
fo
r-
ig
nit
ion.
C
o
nt
rol w
ill
a
u
to
-r
eset
a
ft
e
r t
h
ree h
o
ur
s.
10
.
W
hen
used
, a
u
xilia
ry
lim
it swit
ch (
A
LS)
is on so
m
e
d
o
w
n
flo
w
m
o
d
e
ls o
n
ly
. W
h
en used
, FL is
on
u
p
flo
w
m
o
d
e
ls
only
. FR
S1 a
n
d
FR
S2
only
used
d
o
wnf
lo
w a
n
d
hor
iz
o
n
ta
l m
o
d
e
ls
.
11
.
Fa
c
to
ry
conne
ct
e
d
wh
en LGP
S is not
used
.
12
.
Fa
c
to
ry
conne
ct
e
d
wh
en B
V
SS
is not
use
d
. B
V
SS
used
whe
n C
h
im
ne
y
A
d
a
p
te
r
A
cces
sor
y
K
it
is inst
a
lled
.
3257
70-
101 R
EV
. B
OL
ST
AR
T
BL
WM
C
AP -
1
SP
AR
E 1
S
P
A
R
E
2
EA
C
-1
PR
1
GR
N
BR
N
BR
N
RE
D
(
L
O
)
WH
T
(C
O
M
)
YEL
BL
U
(M
E
D
L
O
)
BL
K (
H
I)
(M
E
D
H
I)
11
