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51
PCB
Y1
R
Y/
Y2
W
C
HU
M
EAC
-2
JB
L
E
G
E
N
D
LS
1
, 2
L
IMIT
SWITC
H
, A
U
T
O-RESET
, SP
ST(
N
.C
.)
OL
AU
T
O
-R
ESET
INTERNA
L
M
O
T
OR O
V
ERL
O
AD
TEMP
ER
A
T
URE
SWI
T
C
H (
N
.C
.)
PC
B
P
RINTED
C
IR
C
U
IT
B
OA
R
D
CON
TR
O
L
PL1
1
1-C
IR
C
UI
T P
C
B
C
O
NNECT
OR
P
L
2
2
-C
IR
C
U
IT CONNEC
T
O
R
PL
3
2
-C
IR
C
U
IT HSI,
C
O
NNEC
T
O
R
PR
SP
RESS
URE SWITC
H,
S
P
S
T-(
N
.O
.)
TES
T/TWI
N
C
OM
P
O
NENT TEST
& T
WI
N T
E
R
M
INAL
TR
A
N
TRAN
S
F
ORMER-115V
A
C
/2
4V
A
C
JU
NC
TION
UNM
ARK
E
D
TE
RMINAL
PC
B
CO
NT
R
O
L
TER
MI
N
A
L
FA
C
T
O
R
Y W
IRING
(
1
1
5
V
A
C
)
FA
C
T
O
R
Y
W
IRING (
2
4
V
A
C
)
FIELD
WI
RI
N
G
(
115V
A
C
)
FI
E
L
D
WI
RI
N
G
(
2
4
V
AC
)
CO
NDU
C
T
OR ON
C
O
N
T
R
OL
P
CB
FI
E
L
D
WI
RI
NG
SCREW
TERMINA
L
FIELD
E
A
R
TH
G
R
O
U
N
D
EQUI
PMENT
GR
OU
ND
FIEL
D S
P
L
ICE
PL
UG
REC
EP
TA
C
L
E
L1
L1
BL
W
R
BH
T
/C
LR
TO
11
5
VAC
FI
EL
D
DI
SCONN
E
CT SW
IT
CH
E
Q
U
IPM
EN
T
G
R
O
U
N
D
S
P
ARE-
1
HE
A
T
FA
N
CO
O
L
ST
AR
T
OL
HI
ME
D
H
I
ME
D
L
O
LO
BL
W
M
SC
H
E
M
A
T
IC
D
IAG
R
A
M
(N
ATUR
A
L
&
PROPAN
E G
A
SES)
1
HS
I
2
PL3
CA
P
L2
NO
T
E
S
:
3275
60-101 RE
V.
E
om
NE
U
T
RA
L
L2
IL
K
FU
2
L1
IL
K
RED
BLU
ORN
GRN/Y
EL
TE
S
T
/T
W
IN
24
V
FU
1
LE
D
1
2
3
4
5
6
7
8
91
0
J1
BL
O
W
ER
O
F
F-
DE
L
A
Y
JU
M
P
E
R
S
E
L
E
C
T
O
R
YEL
OL
STAR
T
BL
K
WH
T
WHT
(C
O
M
)
BL
K
BL
K
WH
T
WH
T
2
1
PL
2
BL
WM
CAP
SPAR
E 1
SPA
RE
2
EAC-
1
PR
1
L1
SEC
-2
SEC-
1
EA
C
-2
18
0
15
0
12
0
9
0
PL
1
BR
N
BR
N
RE
D (
L
O
)
WH
T
(C
O
M
)
YEL
BL
U
(M
E
D
L
O)
CO
M
G
DHU
M
BLK (
H
I)
(M
E
D
H
I)
115V
A
C
PR
1
TR
A
N
24
V
A
C
FR
S
1
FR
S2
LG
P
S
PR
S
FS
E
ID
M
DS
S
BVS
S
LS
1
NOT
E
#1
0
(W
HE
N US
E
D
)
F U
1
NO
T
E
#
6
R
W
SE
C
-1
SEC-
2
HU
M
GV
R
-2
P
L1-
1
CP
U
Y1
G
C
GV
R
-1
OM
DH
UM
Y/
Y
2
1.
If
an
y o
f t
h
e
ori
g
in
a
l eq
u
ip
m
e
n
t wi
re
is
r
e
pl
ac
ed
us
e
wi
re
r
a
te
d
fo
r
1
0
5
°
C.
2.
Use
o
n
ly
co
pp
er w
ire
betw
e
e
n
th
e d
isco
n
ne
ct
sw
itch an
d
th
e
f
u
rn
ac
e
ju
nc
tio
n
b
o
x (JB
).
3
.
T
h
is
w
ire
m
ust be
c
o
n
n
e
cted
to
fu
rn
a
ce
s
h
e
e
t m
e
ta
l fo
r c
ont
ro
l to
p
ro
ve
fl
a
m
e
.
4.
Symb
ol
s
are
e
le
ct
ri
ca
l re
pres
entat
io
n o
n
ly.
5
.
S
o
lid
li
n
e
s in
si
d
e
PCB
a
re p
ri
n
te
d c
ir
cu
it b
o
ar
d c
o
n
d
u
ct
o
rs
an
d a
re
not i
nc
lu
de
d i
n
le
ge
n
d
.
6
.
Repl
ac
e on
ly
w
ith a
3
am
p
fuse
.
7
.
In
d
u
ce
r (I
DM)
an
d
bl
ower
(
BL
W
M
)
m
o
to
rs c
o
n
tain
in
te
rn
al
au
to
-r
es
et
therm
al
ove
rl
o
a
d
s
w
itch
e
s
(O
L).
8.
Neut
ra
l c
o
n
n
e
ct
io
n
s ar
e i
n
te
rc
h
a
n
gea
b
le
w
ith
in
th
e
NEU
T
R
A
L
c
o
n
ne
ct
or
bl
o
ck.
9
.
B
low
er m
oto
r sp
e
e
d
se
le
ct
io
ns
are
for a
vera
g
e
con
di
tio
n
s,
se
e
in
st
a
lla
tion
in
st
ru
cti
o
n
s fo
r
d
e
ta
ils
o
n
op
tim
u
m
sp
ee
d s
e
le
ct
io
n.
1
0
.
Fac
to
ry
c
o
n
ne
ct
ed wh
en
BVSS (
C
h
imne
y
A
dap
te
r A
cc
e
ss
o
ry
K
it) i
s n
o
t i
nstal
le
d
.
11
.F
a
ct
o
ry
c
o
n
n
e
ct
ed wh
en
L
G
PS i
s no
t u
se
d
.
12
.
Ignit
ion-
lo
cko
u
t w
ill
o
ccur
af
te
r fo
u
r con
se
cuti
ve
u
ns
u
ccess
fu
l t
ri
a
ls
-f
o
r-i
g
n
iti
on
. C
o
n
tro
l w
ill
au
to
-r
es
et
af
te
r
th
re
e
h
o
u
rs
.
13
.
B
lo
we
r-
on d
e
la
y:
g
a
s he
ati
n
g
25
s
e
co
n
ds
, c
o
oli
n
g
or
he
at
pu
m
p
2
se
co
nds
.
14
.B
lo
we
r-
of
f d
el
a
y: g
a
s h
e
a
tin
g
s
e
le
ct
io
n
s a
re
9
0
, 1
2
0
, 1
5
0
or
18
0
sec
o
nd
s,
co
ol
in
g
o
r hea
t
pu
mp
9
0
s
ec
ond
s o
r 5
se
co
n
d
s
wh
e
n
D
HUM
is
ac
tiv
e
.
15
.
Y
E
L
LO
W
le
ad
n
o
t on
al
l m
o
tors.
FAN
BFANR
TRA
N
FS
E
LS
1
RE
D
RE
D
BL
U
RE
D
WH
T
BL
K
BL
K
WH
T
ID
M
HSI
WH
T
BL
K
2
1
PL
3
FR
S
1
FR
S
2
BVS
S
DS
S
11
EAC
-1
HS
IR
1
2
PL
2
ID
R
FUS
E
OR CI
RC
UI
T
BREAKE
R
&
DI
SCO
N
NE
CT
S
WI
T
C
H (
W
HE
N RE
Q’
D)
NO
TE
#
2
GR
N/
Y
E
L
GR
N/
YEL
GN
D
NOT
E
#
3
NO
T
E
#
6
WH
T
NOT
E
#
5
GV
GRN
/Y
E
L
RE
D
24V
NO
T
E
#
1
1
PR
S
(W
H
E
N USE
D
)
LG
P
S
YEL
(W
H
E
N USE
D
)
NO
T
E
#
1
0
L2
(W
HE
N US
E
D
)
NEU
TRAL
NOT
E
#
1
1
GV
NEUT
RA
L
NO
TE #8
BF
A
N
R
C
ONT
INUOU
S-
FA
N
SEL
E
C
T
REL
A
Y
, SP
D
T
BH
T
/C
L
R
B
LO
W
E
R
M
OT
OR
SP
EED
CH
A
N
G
E
R
E
L
AY
,
SP
DT
BL
W
R
BL
OW
E
R
M
OTO
R
R
E
LA
Y
, S
PS
T-
(N
.O
.)
BL
WM
BL
O
WER MO
T
OR, P
E
R
MANENT
-S
P
L
IT
-CAP
A
C
IT
OR
BV
S
S
BL
O
C
K
E
D
V
E
NT
S
HU
T
O
F
F
S
W
IT
C
H
,
M
A
N
U
AL
-RESET
, S
P
ST -
(N
.C
.)
CA
P
C
A
P
AC
IT
O
R
CP
UM
IC
RO
P
R
O
C
E
S
S
O
R
A
ND
C
IRC
U
IT
R
Y
DS
S
D
RAF
T
SAF
E
GU
ARD
SW
IT
C
H
, A
U
T
O-RESET
, SP
S
T
-
(N
.C
.)
EA
C-
1
E
L
E
C
T
R
O
N
IC
AI
R C
L
EA
NER C
O
NN
E
C
TI
ON
(
1
1
5
V
A
C
1
.
0
AMP MAX.
)
E
A
C-
2
E
L
E
CT
RO
N
IC
AI
R C
L
EA
NER C
O
N
N
EC
TI
ON
(
CO
M
M
ON
)
FR
S
1
, 2
FL
A
M
E
RO
L
L
O
U
T
S
W
. -
M
ANU
A
L
RESET
,
SP
S
T-(N.
C
.)
FS
EF
L
A
M
E
-P
R
O
V
ING EL
EC
T
RODE
FU
1F
U
S
E
,
3 AM
P,
A
U
T
O
M
O
T
IV
E BLAD
E
TY
P
E
,
F
A
C
T
O
R
Y
IN
S
TA
L
L
E
D
FU
2
F
U
SE OR
C
IRC
UIT
B
R
EAK
E
R
CUR
R
E
N
T I
N
T
E
R
R
UP
T
DEVI
CE
(F
IELD I
N
S
TA
L
L
E
D
&
S
U
P
PLIE
D)
GND
E
QUIP
M
ENT
GR
OUND
GV
GAS
V
A
LV
E-
REDU
ND
AN
T
GV
R 1, 2
G
AS
V
A
LV
E
REL
A
Y
,
DP
ST
-(N.O
.)
H
S
I
H
O
T
S
U
R
FA
C
E
I
G
NITER
(1
15
VA
C
)
HS
IR
H
O
T
SU
RF
A
C
E IGNITER REL
A
Y,
SP
ST
-(
N.O
.)
HU
M
2
4
V
A
C
H
U
M
ID
IF
IER C
O
NNEC
T
IO
N
(
0
.5
A
M
P.
MA
X
.)
ID
M
IND
UCED
DR
A
FT
M
O
T
OR,
S
HAD
ED-
P
OL
E
ID
R
IN
D
UCED
DR
AF
T
MO
T
OR REL
AY
, S
P
S
T-
(N
.O
.)
IL
K
B
L
O
WER A
C
C
ESS P
A
NEL
I
N
TERL
OC
K
SWI
T
C
H
, S
PS
T-
(N
.O
.)
J1
B
L
O
W
E
R
-
O
F
F
D
E
L
A
Y
J
UMP
E
R
SE
L
E
C
T
O
R
JB
JU
NC
T
ION B
O
X
LE
D
L
IG
HT
-EMI
T
T
IN
G D
IODE
F
O
R
ST
A
T
US C
O
D
E
S -
AM
B
E
R
LG
P
S
LO
W
G
A
S
PR
ESSU
R
E SW
IT
CH
,
SP
ST
-(
N.
O.
)
NEUTRAL
BH
T/
C
L
RB
F
A
N
R
B
L
W
R
C
O
N
N
E
C
T
ION
D
IAGR
A
M
CO
O
L
HE
A
T
PL
1-
6
PL1
-2
PL1
-4
P
L1-
1
0
PL1
-5
PL1
-8
TE
S
T
/T
W
IN
PC
B
NO
T
E #
5
BLW
PRINTED CIRCIUT BOARD
PRINTED CIRCIUT BOARD
P
L1-
3
PL1
-9
P
L1-
11
PL
1-
7
NO
TE
#15
NOTE
#
1
5
LS
2
(W
H
E
N USE
D)
LS
2
(W
H
E
N USE
D
)
RED
RE
D
RE
D
RED
OR
G
OR
G
A04222
Fig. 54 -- Wiring Diagram
58D
L