Fig.
12—Unit
Wiring
Diagram
A95335
PCB
BL
OWER
O
FF
DE
LAY
SE
LEC
T
IO
N CH
AR
T
90
SEC
135
SEC
180
SEC
225
SEC
GVR
H
I/L
O
RE
L
A
Y
SE
C-
1
SE
C-
2
PL
1
3
2
1
6
5
4
9
87
LE
D
TEST/TWIN
BL
OWER
OF
F
DE
LAY
G
R
Y
W
C
HU
M
HS
IR
ID
R
B
L
W
R
BL
OWER
SP
EED
SE
LEC
T
FU
1
C
OOL
HE
AT
L2
PL
3
PL
2
VA
C
120
L1
PR
1
1
2
1
2
3
PR
2
24 VA
C
-3A
FU
SE
SP
AR
E-
2
SP
AR
E-
1
EA
C-
1
EA
C-
2
C
1.5 A
MP
12
PL
5
WHT
BL
K
WHT
WHT
BLK
BLK
HS
I
BL
K
WHT
WHT
(C
OM
)
RE
D
(
L
O)
BL
U
(M
ED
LO
)
NO
TE
#
8
OL
ST
ART
BL
W
M
YE
L (
M
ED
H
I)
BL
K
(
H
I)
BR
N
BR
N
TRAN
BL
U
RE
D
BL
K
WHT
WHT (
C
OM
)
GR
N
CA
P
RE
D
NO
TE
#5
RE
D
OR
N
F
U
S
E
D
DI
SC
ON
NE
C
T
SWI
T
CH
(
W
HE
N REQ
’D
)
NO
TE
#4
FU
2
BL
K
WHT
GR
N
GR
N
JB
LEGEND
AL
S
A
U
X
IL
IA
RY
LI
M
IT
SWI
T
CH
,
OV
ER
TEM
P
. -
M
ANU
A
L
RE
SET
,
SPS
T-
(N
.C
.)
BL
W
R
BL
OWER
M
O
TOR
R
E
LA
Y,
SP
ST-
(N
.O
.)
BL
W
M
BL
OWER
M
O
TOR
C
A
P
C
AP
AC
IT
O
R
CP
U
M
IC
RO
PRO
C
E
S
S
O
R
AN
D
CI
RC
UI
TRY
D
S
S
D
RA
F
T
SA
F
E
G
U
A
R
D SW
IT
CH
EA
C-
1
E
L
E
CT
RO
NI
C AIR
C
L
EA
NE
R CO
NNE
CTI
O
N (115
V
A
C 1.
5
A
M
P
M
A
X
.)
EA
C-
2
E
L
E
CT
RO
NI
C AIR
C
L
EA
NE
R CO
NNE
CTI
O
N (C
OM
MO
N)
FL
FU
SI
BLE LI
NK
FR
S
F
LA
ME
R
O
LL
OU
T S
W
.
-M
AN
UA
L R
ESE
T,
S
PST-
(N
.C
.)
F
S
E
F
LAM
E
PR
OV
IN
G ELE
C
T
R
OD
E
FU
1
F
U
SE,
3
A
M
P
, AU
TOM
O
TIV
E
BLAD
E TYP
E
,
FA
CTO
R
Y
I
N
S
T
ALL
E
D
F
U
2
F
US
E
OR
C
IR
C
U
IT
BR
E
A
K
E
R
CU
RR
E
N
T
I
N
T
E
RR
UP
T
D
E
VI
CE
(F
IE
LD I
N
ST
ALLE
D &
S
U
P
P
LI
ED)
G
V
G
AS VA
LVE-
R
E
DU
ND
ANT
O
PER
ATO
R
S
G
V
R
G
AS VA
LVE RE
LAY
, DP
ST-
(N
.O
.)
HI
/L
O
B
L
O
WER
M
O
TOR
S
PEE
D CH
ANG
E
RE
LAY
, SPD
T
HS
I
H
OT SU
RFA
C
E I
G
N
ITOR (
115 VAC
)
HS
IR
HO
T SU
RFA
C
E I
G
N
ITO
R RE
LAY
, SPS
T-
(N
.O
.)
HU
M
24V
AC
HU
M
ID
IFI
ER
C
O
N
N
EC
TI
ON
(
.5
A
M
P
.
MA
X.
)
ID
M
INDU
CE
D DRA
FT MO
TO
R
ID
R
INDU
CE
D DRA
FT RE
LAY
, SPS
T-
(N
.O
.)
IL
K
B
LO
W
E
R AC
CE
S
S
PA
N
E
L
IN
TE
R
L
O
C
K
SW
IT
CH
, SP
ST
-(
N
.O.
)
JB
JU
N
C
TI
ON
B
O
X
LE
D
L
IG
H
T
-E
M
ITT
IN
G DI
OD
E FOR
S
T
AT
US CO
DE
S
LG
PS
LO
W G
AS
PR
ES
SUR
E
SWIT
CH
,
SPS
T-
(N
.O
.)
LS
LI
MI
T SWI
T
CH
, AU
TO RE
SET
, SPS
T(
N.
C.
)
O
L
AU
TO
-R
ESE
T IN
TER
N
AL M
O
TO
R O
VER
LOA
D
TEM
P
. SW.
P
C
B
P
RI
NT
E
D
CI
RC
UI
T
B
O
A
R
D
P
L
1
9
-C
IR
CU
IT
CO
NN
EC
T
O
R
P
L
2
2
-C
IR
CU
IT
PC
B CO
NN
E
C
T
O
R
P
L
3
3
-C
IR
CU
IT
ID
M C
O
N
N
E
C
T
O
R
PL5
2
-C
IR
C
U
IT
H
S
I/
P
C
B CO
NN
EC
TOR
PR
S
P
R
ESS
UR
E S
W
IT
C
H
, S
PST
-(
N.
O
.)
TE
ST/
T
W
IN
C
O
M
PO
NEN
T
TEST
& TW
IN
TER
M
IN
A
L
TR
AN
TR
ANS
F
O
R
M
E
R-115V
AC/
24VA
C
JU
NC
TI
ON
UN
M
A
RK
ED TE
RM
IN
AL
PC
B TER
M
IN
A
L
FA
CTO
R
Y
WI
RI
NG
(115VA
C
)
FA
CTO
R
Y
W
IRI
NG
(
24VA
C
)
FI
ELD
WI
RI
NG
(115VA
C
)
FI
ELD
W
IRI
NG
(
24VA
C
)
CO
ND
UC
TO
R
ON
PC
B
FI
ELD
W
IRI
NG
TE
RM
IN
AL
F
IE
L
D GR
OU
ND
EQ
UI
PM
EN
T G
R
O
U
N
D
FI
ELD
SP
LI
C
E
PLU
G
RE
CEP
TAC
LE
L1
NE
UTR
A
L
L1
BLW
R
H
I/L
O
TO 11
5V
A
C
FI
E
L
D DI
S
C
ONNE
CT
NOTE
#4
EQ
UI
PM
EN
T G
R
O
U
N
D
SP
ARE
-2
HE
AT
SP
ARE
-1
C
OOL
NO
TE
#8
CO
M
HS
IR
EA
C-
1
ST
ART
OL
CO
M
HI
M
E
D HI
ME
D
L
O
LO
BLW
M
SCH
E
MATIC DIA
G
R
A
M
(NAT
URAL
GAS &
P
R
OPANE
)
EA
C-
2
1
1
HS
I
2
PL5
2
PL2
3
PL3
PR
2
115V
AC
PR
1
TR
AN
24VA
C
1
2
ID
R
T
E
S
T
/T
WIN
FU
1
NO
TE
#6
CA
P
L2
PL1
GV
2-C
1-M
3-P
NO
TE
#5
8
FS
E
9
6
5
CP
U
HS
IR
ID
R
BLW
R
Y
G
C
R
W
GV
R
-2
SE
C-
1
H
I/L
O
GV
R
GV
R
-1
SE
C-
2
NOT
ES:
32
2869
-101
REV
. C
1.
If
any
of t
he
or
ig
in
a
l equ
ip
m
e
n
t w
ire
is
r
epl
a
ced
use
wi
re
r
a
ted
for
1
0
5
°C
.
2.
In
duce
r (I
DM
) an
d b
low
er
(
B
L
W
M
) mo
tor
s co
nta
in i
n
te
rn
a
l aut
o-
re
set
the
rm
a
l o
ver
lo
a
d
sw
itche
s (
O
L)
.
3.
Bl
o
w
e
r
mo
tor
sp
eed
sel
e
cti
ons
ar
e f
o
r ave
ra
g
e
con
d
iti
o
n
s, se
e i
n
st
al
la
tion
in
str
u
ct
io
ns f
o
r de
tai
ls
o
n
op
tim
u
m
spe
ed
sel
e
cti
o
n.
4.
U
se o
n
ly
co
ppe
r w
ir
e
bet
we
en
th
e d
isco
nn
ect sw
itch
an
d th
e f
u
rn
a
ce j
u
n
cti
on
bo
x (
JB)
.
5.
T
h
is
w
ir
e
m
u
st
be
con
nect
ed
to f
u
rn
a
ce sh
eet
me
tal
fo
r con
tr
o
l to
de
tect
flam
e.
6.
R
e
p
la
ce o
n
ly
w
ith
a 3
am
p
fuse
.
7.
Ye
llo
w
lead
no
t o
n
a
ll m
o
to
rs
.
8.
Bl
o
w
e
r-
o
n d
e
la
y,
gas
hea
ting
45
seco
nds,
coo
lin
g o
r
hea
t p
u
m
p
2
seco
nd
s.
9.
Bl
o
w
e
r-
o
ff d
e
la
y,
gas
hea
ting
90
, 13
5,
180
o
r 2
2
5
seco
nds,
coo
lin
g o
r
hea
t p
u
m
p
9
0
se
con
d
s.
(1
3
5
se
cond
s on
ly
on
som
e
mo
del
s)
1
0
.
Ig
n
itio
n
-lo
cko
u
t wi
ll o
ccu
r a
ft
e
r fo
u
r co
n
se
cu
tive
u
n
su
cce
ssfu
l t
ria
ls-fo
r-ig
n
iti
o
n
.
C
o
n
tro
l w
ill a
u
to
-re
se
t
af
ter
th
re
e h
o
u
rs.
1
1
.
W
h
e
n
u
se
d
a
u
xilia
ry lim
it switch
(AL
S
) is o
n
d
o
wn
flo
w
mo
d
e
ls o
n
ly
. W
h
e
n
u
se
d
FL
is o
n
u
p
flo
w
mo
d
e
ls o
n
ly.
12
.
S
o
m
e
m
o
d
e
ls
m
a
y h
a
ve
spad
e
qui
ck co
nn
ect t
e
rm
in
al
s.
BLK
OM
SW
2
SW
1
OM
2
3
4
7
1
OM
HU
M
ID
M
IL
K
DS
S
ALS
PR
S
IL
K
L1
NE
UTR
A
L
ID
M
(W
H
E
N US
E
D
)
NO
TE
#11
NO
T US
ED
NO
T US
ED
NO
T US
ED
GR
N
2-
C
FS
E
1-
M
3-
P
GV
BL
U
YE
L
PR
S
DS
S
AL
S
(W
HE
N US
E
D
)
NOTE
#12
WH
T
FR
S1
FR
S2
LS
FL
(W
H
E
N US
E
D
)
(N
OT
ON
A
L
L
MO
DE
L
S
)
NO
TE
#9
FR
S1
FR
S2
LS
FL
(W
H
E
N US
E
D
NO
TE
#12
—10—
