Fig.
7—Furnace
Wiring
Diagram
A00284
32
635
1-
10
1 RE
V.
B
GV
HI
M
G
R
N/
YEL
C
NO
TE
#
3
BR
N
BLU
BR
N
GR
N
/Y
EL
RE
D
OR
N
RE
D
RE
D
RE
D
RE
D
NO
TE
#11
FR
S1
DS
S
BVSS
LS
(W
HE
N U
SE
D)
FR
S2
NO
TE
#1
2
OR
N
YEL
HS
I
L1
NO
TE
#2
GN
D
NE
UT
RA
L
FU
2
FU
SE
O
R
C
IR
C
UI
T
BR
EA
KE
R &
DI
SC
O
N
NE
CT
SWI
TC
H
(WHE
N
R
EQ’
D
)
BL
K
IL
K
PL
5
JB
1
2
SEC
-2
LE
D
SEC
-1
FUSE
3-A
MP
PL
T
AC
RD
J
0.5 A
MP
@ 24
VA
C
HUM
TEST/
TWIN
ON
OF
F
3
2
1
DLY
OFF
LHT
W/
W1
DH
UM
G
24V
om
C
W2
Y/
Y2
R
Y1
TR
AN
L1
PR-1
EAC-1
CA
P
OL
SPAR
E - 1
BLW
R
BHT/
CLR
BHI/LO
R
COOL
LO-H
EAT
HI-HEA
T
ST
AR
T
G
R
N/
YEL
BL
W
M
NEU
TRA
L -
L2
EAC-2
RE
D
BL
U
OR
N
YE
L
BL
K
LO
MED
L
O
ME
D
HI
M
ED HI
RE
D
BLU
WH
T
WH
T
BR
N
BR
N
BL
K
WH
T
BL
K
WH
T
IH
I/L
O
R
HS
IR
ID
R
LO
HI
HSI
GR
Y
CO
NN
EC
TI
O
N
DI
AG
RA
M
BL
K
1
HS
I
2
ID
M
1
2
3
HI
CO
M
LO
S
CHE
M
AT
IC DI
AG
RA
M
(N
AT
UR
AL
G
AS &
PR
O
PA
N
E)
ID
R
T
O
11
5V
AC
FI
EL
D-
DI
SC
ONN
ECT SW
IT
CH
IL
K
EQ
UI
PM
EN
T
GR
O
UN
D
1
2
3
HS
IR
IH
I/L
O
R
PL
2
L2
L2
CA
P
OL
ST
AR
T
BL
W
M
CO
M
LO
MED
L
O
MED
HI
M
ED HI
LO
H
EA
T
SP
AR
E-
2
C
OOL
IN
G
SP
AR
E-
1
BH
I/L
O
R
BH
T/
C
LR
BL
W
R
EA
C
-2
EA
C
-1
TR
AN
L2
L2
115
VA
C
24
VA
C
SEC
2
SEC
1
PR
1
FU
1
NO
TE
#
6
FR
S1
DS
S
BVS
S
FR
S2
(W
HE
N US
ED
)
PL1-
8
GV
R
-2
HU
M
R
ACR
PL
1-
12
H
PSR
GV
LP
S
NO
TE
#1
2
LG
PS
(W
HE
N U
SE
D
)
HP
S
HI
PL
1-
2
PL1
-4
PL1
-3
PL1-
10
PL1-
5
W/
W1
CP
U
GV
R-
1
TE
ST
/T
WI
N
DH
UM
W2
Y/
Y2
G
Y1
C
OM
2
4V
NO
TE
#3
C
M
PL1
-1
LP
S
(W
HE
N US
ED
)
LG
PS
WH
T
FSE
FS
E
PL1-
9
PL1-
11
PL1
-7
N
O
TES:
1.
If
an
y o
f the
or
ig
in
al
e
qu
ip
m
ent
w
ire
is
re
pl
ac
ed
u
se
w
ire
ra
te
d
for 1
05
°
C.
2.
U
se
o
nl
y
cop
pe
r w
ire b
et
wee
n t
he
dis
co
nn
ec
t s
w
itc
h
and
th
e fur
nac
e junc
tio
n b
ox
(J
B)
.
3.
Th
is
wi
re
m
us
t b
e c
onn
ec
te
d t
o f
ur
nac
e s
he
et
met
al
fo
r co
nt
ro
l t
o pr
ov
e f
lame
.
4.
Sy
m
bo
ls
are e
lectr
ical
rep
re
se
nt
at
io
n on
ly
.
5.
So
lid l
in
es
in
si
de PCB a
re p
rin
te
d c
irc
ui
t b
oa
rd
c
ond
uc
to
rs
a
nd
ar
e no
t i
nc
lu
de
d i
n t
he l
ege
nd
.
6.
R
epl
ac
e o
nl
y w
ith
a 3
am
p f
use
.
7.
Bl
ow
er m
otor
(B
LW
M
) and
in
du
ce
r m
ot
or (I
D
M
) co
nt
ai
n
in
te
rn
al
a
ut
o-
re
set t
he
rm
al
o
ver
lo
ad
sw
itc
he
s (
O
L).
8.
N
eutr
al
con
ne
ct
io
ns
are
in
te
rc
ha
ng
eab
le
w
ith
in t
he
N
EU
TR
AL
c
onn
ec
to
r b
loc
k.
9.
Bl
ow
er m
otor
spe
ed
se
le
ct
io
ns
a
re f
or a
ver
ag
e c
ond
iti
ons
, se
e i
nst
al
la
tion
in
st
ru
ct
io
ns
fo
r o
pt
im
um
se
le
ct
io
n.
10
.M
ED no
t av
ai
la
bl
e o
n s
ome m
ode
ls.
11
.F
ac
to
ry
co
nn
ec
te
d whe
n BVSS
(C
hi
m
ne
y Ad
ap
te
r Ki
t)
is
no
t i
nst
al
le
d.
12
.F
ac
to
ry
c
onn
ec
te
d w
hen
L
G
PS
is
no
t use
d.
13
.I
gn
itio
n
lo
ck
ou
t w
ill o
cc
ur
a
fte
r f
ou
r c
on
se
cu
tiv
e u
ns
uc
ce
ss
fu
l t
ria
ls-f
or
-ig
nitio
n.
C
on
tro
l w
ill a
ut
o-
re
se
t a
fte
r th
re
e h
our
s.
14
.B
lo
w
er-
on
dela
y:
ga
s h
igh
-h
ea
t 25
se
co
nds
, g
as
lo
w-
he
at
4
5 s
eco
nd
s,
c
oo
lin
g or h
ea
t pu
m
p
2 s
eco
nd
s.
15
.B
lo
w
er off
-dela
y:
ga
s h
eati
ng
se
le
ct
io
ns
a
re 9
0,
1
20
, 150
, 1
80
s
eco
nd
s,
c
oo
lin
g
or he
at
pu
m
p
90
sec
on
ds
or
5 s
eco
nd
s whe
n DHUM
is
o
n.
LEG
END
AC
R
AI
R
C
O
ND
IT
IO
NI
NG
REL
AY
, SP
ST
(N
.O
.)
AC
RDJ
AI
R
C
O
ND
IT
IO
NI
NG
REL
AY
DI
SAB
LE
J
U
MP
ER
BH
I/L
O
R
BL
O
WER
MO
TO
R
SP
EED C
H
ANGE REL
AY
, SP
DT
BH
T/
C
LR
BL
O
WER
MO
TO
R
SP
EED C
H
ANGE REL
AY
, SP
DT
BL
WR
BL
O
WER
MO
TO
R
REL
AY
, S
PST
-(
N.
O
.)
BL
WM
BL
O
WER MO
TO
R
, P
ERMAN
ENT
-S
PL
IT
-C
AP
AC
IT
OR
BV
SS
BL
O
C
KE
D V
EN
T SH
UT
O
FF
S
W
IT
C
H
, M
ANU
AL
-R
ES
ET
, S
P
ST
-(
N
.C
.)
C
AP
C
AP
AC
IT
OR
C
PU
M
IC
R
O
P
R
OC
ESS
OR AN
D
C
IRC
U
ITR
Y
DH
UM
DH
UM
CO
N
N
EC
TI
O
N
D
SS
D
RAF
T
SAF
E GU
ARD
S
W
IT
C
H
,
AU
TO
-R
ESET
, S
PS
T
-(N
.C
.)
EA
C
-1
EL
EC
TR
O
N
IC
AIR C
LEA
NER
C
O
NNEC
TION (
11
5
VA
C
1
.0
AMP
MA
X.)
EA
C
-2
EL
EC
TR
O
N
IC
AIR C
LEA
NER
C
O
NNEC
TION (
C
O
M
M
O
N)
FRS 1
, 2
FL
AME ROL
LOUT
SW
. -
M
ANU
AL
RES
ET
,
SP
ST
-(N.C
.)
FS
E
FL
AM
E-
PR
O
V
ING EL
EC
TR
OD
E
FU
1
FUSE,
3
AMP
,
AU
TO
MO
TIV
E B
LAD
E
TY
P
E, F
AC
TOR
Y
INST
AL
LE
D
FU
2
FU
SE OR
C
IRC
U
IT B
R
EAK
ER C
U
R
R
ENT INTERR
U
PT D
EV
IC
E
(F
IE
LD
SU
PP
LI
E
D
AND
IN
ST
AL
LE
D
)
GND
EQ
UI
PM
ENT
GR
OU
ND
GV
GAS
V
AL
VE-
REDU
ND
AN
T
GV
R 1
, 2
GAS
V
AL
VE REL
AY
, DP
ST
-(N.O
.)
H
PS
H
IG
H
-H
EA
T P
R
ESSURE
SWI
TC
H
, SP
ST
(N.
O
.)
H
PSR
H
IGH
-H
EA
T P
R
ESSURE SWI
TC
H
REL
AY
, S
PS
T
(N.C
.)
HS
I
H
O
T
S
U
R
FAC
E IG
N
ITER
(115V
AC
)
H
SIR
H
O
T S
U
RF
AC
E
IGNITER
REL
AY
, SP
S
T (
N.O
.)
H
U
M
24
VA
C
H
U
M
ID
IF
IER C
O
NNEC
TIO
N
(0
.5
AM
P
. M
AX.)
IDM
IND
UC
ED
DR
AF
T MO
TOR,
SH
AD
ED-
PO
LE
IDR
IND
UC
ED
DR
AF
T MO
TO
R
REL
AY
, S
PS
T-
(N.
O
.)
IH
I/L
O
R
IND
UC
ER
MO
TOR SP
EED
C
H
AN
GE REL
AY
, SP
DT
IL
K
BL
O
WER
AC
C
ESS
P
AN
EL
INTERL
O
C
K SWI
TC
H
, SP
ST
-(N.O
.)
JB
JU
N
C
TI
O
N
B
O
X
LE
D
LI
G
H
T-
EM
ITTI
NG
DI
ODE
FO
R ST
AT
US
C
O
D
ES
LG
PS
LO
W
GAS
PR
ESSU
RE S
W
ITC
H
, SP
ST
-(N
.O
.)
LP
S
LO
W
-H
EA
T P
R
ESSU
RE
SW
IT
C
H
, SP
S
T
(N.O
.)
LS
LI
MIT S
W
ITC
H
,
AU
TO
-R
ESET
, SP
S
T (
N.C
.)
OL
AU
TO
-R
ESET INTERNA
L M
O
TOR
O
VER
LO
AD
T
EM
PER
AT
U
RE SWITC
H
(N.C
.)
PC
B
PR
INTED
C
IR
C
UI
T B
O
ARD
C
O
NTR
OL
PL
1
12
-CI
R
C
U
IT
PC
B
CO
N
N
EC
TO
R
PL
2
3-C
IR
C
U
IT
P
C
B H
SI
&
ID
M
C
O
N
N
EC
TO
R
PL
3
6-
C
IRC
U
IT
IC
M
MO
TOR C
O
NN
EC
TOR (
N
O
T S
H
O
WN)
PL
4
3-C
IR
C
U
IT
ID
M
C
O
N
N
EC
TOR
PL
5
2-C
IR
C
U
IT
H
SI
C
O
N
N
EC
TOR
PL
T
3-CI
R
C
U
IT
F
A
C
TO
RY
TE
ST
CO
N
N
EC
TO
R
TRAN
TRAN
SF
ORM
ER, 1
15
VA
C
/2
4V
AC
TEST/
TWIN
C
O
M
P
ONENT T
EST
&
TWINNI
NG TERM
INAL
JU
N
CTI
O
N
TE
RM
IN
AL
CO
NT
RO
L P
CB
T
ERM
IN
AL
FA
CT
O
R
Y P
O
W
ER W
IR
IN
G
(1
15
VA
C)
FA
CT
O
R
Y
CO
NT
RO
L W
IRI
N
G
(2
4V
AC
)
FI
EL
D
CO
NT
R
O
L W
IRI
N
G
(1
15
VA
C)
FI
EL
D
CO
NT
R
O
L W
IRI
N
G
(2
4V
AC
)
CO
ND
UCT
O
R
O
N
CO
NT
RO
L P
CB
FI
EL
D W
IRI
NG
S
C
RE
W
T
ERM
IN
AL
FI
EL
D
E
AR
TH
GR
OU
ND
EQ
UI
PM
EN
T G
R
O
UN
D
FI
EL
D
SPLI
CE
PL
U
G
RE
CE
PT
AC
LE
PC
B
ACR
DJ
PL1-
6
LS
L1
NO
TE
#
10
L2
PL4
PL5
WH
T
GR
N
/Y
EL
WH
T
RE
D
BLK
ID
M
CO
M
LO
PL
4
1
3
2
HI
WH
T
RE
D
BL
K
PL2
ID
M
NO
TE #8
1 AM
P
@ 115 VA
C
ST
AT
U
S CO
DE
FU1
NO
TE #6
PL1
1
SE
LEC
T C
H
AR
T
SW
LO
-H
T
ON
LY
BL
O
W
ER
O
FF-
DE
LA
Y
ON OFF
1
ON
LY
HE
AT
LO
HE
AT
NO
R
M
2
3
90 SEC
.
ON OF
F
1
2
3
12
0
SEC
.
ON OF
F
2
3
15
0
SEC
.
ON OF
F
2
3
18
0
SEC
.
HP
S
FA
CT
O
R
Y SET
TI
NG
S
BLW
OR
N
HI
HE
AT
NO
TE
#
11
NO
TE
#5
*
*
*
SPAR
E-2
—7—
