→
Fig.
13—Unit
Wiring
Diagram
A97508
LEGEND
AL
S1
AU
XI
LIA
R
Y
LI
M
IT SWI
T
CH
, OV
ER
TEM
P
.
M
A
N
U
A
L
R
E
S
E
T,
S
PST
(
N
.C
.)
A
L
S
2
A
U
X
IL
IAR
Y
L
IMI
T
S
W
IT
C
H
, O
V
E
R
T
E
MP
.
AU
T
O
R
E
SE
T
,
SP
ST
(N
.C
.)
BH
I /
LO
R
B
L
O
WER
M
O
TOR
S
PEE
D CH
ANG
E
RE
LAY
, SPD
T
BH
T / CLR
B
L
O
WER
M
O
TOR
S
PEE
D CH
ANG
E
RE
LAY
, SPD
T
BL
W
M
BL
OWER
M
O
TOR
, 4 or 5 -S
PEE
D,
P
E
RM
AN
EN
T-
SPLI
T
-C
A
PAC
IT
OR
BL
W
R
BL
OWER
M
O
TOR
R
E
LA
Y,
SP
ST (
N
.O
.)
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
(N
.C
.)
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
A
M
P
M
AX.
)
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)
FR
S1
FLA
M
E
R
O
LL
OU
T
S
W
ITC
H
OV
ER
TEM
P
.
MA
NU
AL RE
SET,
SPS
T
(N
.C
.)
FR
S2
FLA
M
E
R
O
LL
OU
T
S
W
ITC
H
OV
ER
TEM
P
.
MA
NU
AL RE
SET,
SPS
T
(N
.C
.)
FS
E
F
LA
ME
-P
RO
VI
NG
S
E
NS
OR
E
L
EC
TRO
D
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
FU
2
F
U
SE,
FIE
L
D IN
STA
LLED
G
V
G
AS VA
LVE,
RED
U
N
D
AN
T LOW-
HE
AT OP
ER
ATO
R
S,
2-S
T
AG
E
H
P
S
H
IGH
-H
E
AT
P
R
ES
S
U
R
E
SW
IT
CH
,
SP
S
T
(N
.O
.)
HP
SR
HI
G
H
-H
EA
T PRE
SSU
RE
S
W
IT
C
H
REL
AY,
S
P
S
T
(
N
.C
.)
HS
I
H
O
T
-S
U
R
FA
CE I
G
N
ITE
R (1
15
V
A
C
)
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
(
0
.5
A
M
P
.
MA
X.
)
ID
M
INDU
CE
D DRA
FT MO
TO
R,
2
-S
PEE
D,
S
H
AD
ED
-P
OLE
ID
R
INDU
CE
R MO
TO
R REL
AY,
S
P
S
T
(
N
.O
.)
IH
I
/
LO
R
INDU
CE
R MO
TO
R SPE
ED
C
H
AN
GE
R
E
LA
Y, SP
DT
IL
K
B
L
O
WER
D
O
O
R
IN
TER
L
O
C
K SWI
T
CH
, SP
ST (N
.O
.)
JB
JU
NC
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
SWI
T
CH
,
SPS
T
(N
.O
.)
LP
S
L
O
W
-H
EAT
P
R
ES
SUR
E
SWI
T
CH
,
SP
ST
(N
.O
.)
LS
LI
MI
T SWI
T
CH
, OV
ERT
E
M
PER
ATU
R
E
-A
U
TO
R
E
S
E
T,
S
PST
(
N
.C
.)
MG
VR
MA
IN
G
A
S VA
L
V
E RE
L
A
Y,
D
P
ST
(
N
.O
.)
-
1 =
VA
LVE
-
2 =
HU
M
ID
IFI
ER
PL1
12-
CI
RC
UI
T CO
NNE
CTO
R
P
L
2
9
-C
IR
CU
IT
CO
NN
EC
T
O
R
P
L
3
3
-C
IR
CU
IT
ID
M C
O
N
N
E
C
T
O
R
P
L
6
2
-C
IR
CU
IT
HS
I CO
NN
EC
T
O
R
SW
1
H
IG
H-
HEA
T
-O
N
L
Y
SW
IT
CH
,
SPS
T (
M
ANU
A
L)
*
SW
2
L
O
W
-H
AT-
ON
LY SW
IT
CH
, SPS
T (
M
AN
UAL
)
*
SW
3 & 4
B
LO
W
E
R
-O
FF DE
LAY SET
TIN
G
SW
IT
CH
ES
,
SP
ST (
M
AN
UA
L)
*
TJ
TW
IN
N
IN
G
JUM
PER
, SP
DT FO
R MA
STER
O
R
SLA
VE STA
TUS
(
M
ANU
A
L CH
ANG
E
OV
ER)
TR
AN
TR
ANS
F
O
R
M
E
R-115V
AC/
24VA
C
T
W
IN
/T
E
S
T
1
-C
IR
CU
IT
T
W
IN
N
IN
G
B
U
S
S
CO
NN
E
C
T
O
R
,
A
L
SO
S
T
AT
U
S
CO
DE
RE
CA
L
L
JU
NC
TI
ON
TE
RM
IN
AL
CO
NT
RO
L T
E
RM
IN
AL
FA
CTO
R
Y
PO
WER
WI
RI
NG
(115VA
C
)
FA
CTO
R
Y
C
O
N
T
RO
L W
IRI
NG
(
24V
AC)
FI
ELD
PO
WER
WI
RI
NG
(115VA
C
)
FI
ELD
C
O
N
T
RO
L W
IRI
NG
(
24V
AC)
CO
ND
UC
TO
R
ON
C
O
N
T
RO
L
FI
ELD
W
IRI
NG
SC
RE
W
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
LIC
E
PLU
G
RE
CEP
TAC
LE
NOT
ES:
32
44
59-
1
01
RE
V. A
1.
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 u
n
it.
2.
If
any
of t
he
or
igina
l wir
e
,
as su
pp
lie
d
, m
u
st
be
r
epla
ced,
use
the
sam
e
or
eq
uivale
nt t
ype
wir
e
.
3.
In
duce
r (I
DM
) an
d b
low
er
(
B
L
W
M
) mo
tor
s co
nta
in int
e
rn
a
l aut
o-
re
set
th
er
ma
l ove
rlo
ad
switch
es.
4.
Blo
w
e
r
mo
tor
sp
eed
sele
ctions
ar
e f
o
r ave
ra
g
e
con
d
ition
s. Se
e
In
stallatio
n
In
str
u
ctio
ns fo
r
de
tails on
op
timu
m
spe
ed
selectio
n.
5
.
Re
pl
ac
e
on
ly
wi
th
a
3-
AM
P f
u
se
.
6.
Au
xil
ia
ry lim
it sw
itche
s (A
LS1
&
2)
use
d
o
n
so
me
ho
ri
zo
nta
l an
d
som
e
do
wn
flow
m
o
d
e
ls.
7.
T
h
is w
ir
e
m
u
st
be
con
nect
ed
to f
u
rn
a
ce sh
eet
me
tal f
o
r
con
tr
o
l to
pr
ove
flam
e
.
8.
F
a
ct
or
y con
nect
ed
wh
en
LG
PS n
o
t
used
.
RE
D
LS
FR
S2
RED
RED
FR
S1
(W
HEN
U
SED
)
ALS
1
DS
S
ORN
LG
PS
YEL
NO
TE
#8
LPS
NOTE
#8
(W
HEN U
SED)
RED
YEL
ORN
(W
HEN
U
SED
)
NO
TE
#6
ALS
2
ORN
SW
IT
CH
12
HE
AT
SE
T-
UP
SW
IT
CH
NO
RM
HI
H
T
LO
HT
*
ON
OFF
OFF
ON
BLO
W
ER
-
OF
F
D
E
L
A
Y
(SEC
.)
SW
IT
CH
3
4
90 SEC
135 SEC
*
180 SEC
225 SEC
ON
OFF
OFF
ON
2-
ST
AG
E
F
URNACE
CONT
ROL
FACTO
RY
SETTI
NG
S
12
3
4
ON
OFF
3
2
1
BLU
BL
OW
ER
-O
F
F
D
E
LA
Y
B
L
OW
ER
-O
FF
D
E
L
A
Y
LO
W
-HE
A
T
O
N
LY
HIG
H
-H
E
A
T
O
N
LY
*
RE
D
RE
D
OR
N
W2
C
o
m
24V
W
/W
1
Y
/Y
2
R
G
HUM
LE
D
S
M
TJ
TW
IN
T
EST
12
11
10
GRN
GRY
BRN
P1
WHT
BLK
GRY
YE
L
3
2
1
9
8
7
WHT
FSE
BLK
GR
Y
BR
N
HP
S
BR
N
HI
P
BLU
GR
N
M
ID
M
HS
I
GR
N
IL
K
JB
L1
WH
T
PL6
RED
BLK
WHT
BLK
WHT
12
12
3
PL3
WH
T
BLK
RE
D
PL2
PR1
P
R2
L1
L2
COM
M
ON
HI
-COOL
HI-GAS HEA
T
EA
C-
2
EA
C-
1
LO-
G
A
S
HEA
T
SP
ARE
SE
C1
FU
1
SE
C2
NO
TE
#4
BLW
M
BR
N
BR
N
CA
P
WH
T
BLK
TR
AN
RED
BLU
WHT
BLK
GV
C
GR
N
F
U
S
E
D
DI
SC
ON
NE
C
T
S
W
IT
C
H
(W
H
E
N RE
Q’
D)
NO
TE
#1
BLK
WH
T
GR
N
L2
GR
N
FU
2
CONNE
CTION DIAGRA
M
L1
BLW
R
TO 11
5VAC FI
E
L
D DI
SCONNECT SWI
T
CH
NOTE #1
EQ
UI
PM
EN
T G
R
O
U
N
D
LO
-G
AS-
H
EAT
H
I-G
A
S
-H
E
A
T
SP
ARE
NO
TE
#4
CO
M
M
O
N
HS
IR
EA
C-
1
SCH
E
MATIC DIA
G
R
A
M
(NAT
URAL GAS &
P
R
OPANE
)
EA
C-
2
3
1
HS
I
2
9
PL2
PR
2
115V
AC
PR
1
TR
AN
24VA
C
ID
R
L2
IL
K
ID
M
BLW
M
BH
I / L
O
R
BH
T / CLR
CA
P
BR
N
BR
N
PL6
IH
I / L
O
R
SE
C1
FU
1
NO
TE
#5
1
2
3
HI
CO
M
HP
SR
1
5
6
2
N/
A
N/
A
HI
-C
O
O
L
PL3
4
7
SE
C2
8
LS
ALS
1
DS
S
ALS
2
FR
S1
(W
HEN
U
SED
)
FR
S2
N/
A
12
2
3
MG
VR
-2
9
6
NO
TE
#8
LPS
(W
HEN
U
SED
)
TW
IN
TE
ST
SLA
V
E
M
AST
ER
W/
W1
R
HU
M
T
W
IN
NI
NG
JUM
P
E
R
TJ
W2
Y/
Y2
G
MG
VR
-1
NO
TE
#8
HP
S
5
4
1
10
7
8
N/
A
N/
A
FS
E
11
HI
M
P
C
NOT
E
#7
PL1
COM
P
ONENT
TE
ST
To
initiate
the co
mpo
nent
test seq
uen
ce with no
the
rmost
at inpu
ts an
d with all ind
u
cer
Po
st-Purg
e and
Blo
w
er-O
ff Delay p
e
riod
s comp
le
ted,
short
the
"TWIN/T
E
ST"
ter
m
inal to
the
"
C
OM
" te
rmina
l for a
bout
two seco
nds. T
he
contro
l will
tur
n
ON th
e indu
cer m
o
tor
Low-Spe
ed, in
ducer
mot
o
r High
-Speed
, HS
I,
blower
moto
r Lo
w-Gas-
H
e
at Spee
d, blo
w
e
r mo
tor
H
ig
h
-Ga
s-Heat Spe
ed,
and b
lower m
o
tor
High-Coo
l S
p
eed
for 7
-15
second
s each
. Neithe
r the
gas va
lve no
r the
hum
id
ifier will be
tur
ned ON.
CP
U
LG
PS
LO
SW
1
GV
ORN
SW4
SW3
SW2
C
OM
9.
Sym
b
o
ls ar
e
an
electr
ical r
e
p
re
sen
tat
io
n
o
n
ly.
10
.
B
L
O
W
E
R
-O
N
DE
LAY
: Ga
s he
ating
4
5
se
cond
s,
Co
ol
in
g
/He
at
Pu
mp
2 s
e
co
n
d
s.
11
.
C
oo
lin
g
/H
ea
t P
u
m
p
B
L
OW
ER
-O
F
F
D
E
LA
Y is 9
0
seco
nd
s.
1
2
.
IGNI
T
ION-
LOCKOUT wil
l occu
r af
te
r f
o
u
r con
se
cut
ive
un
succe
ssful trials-for-ignitio
n
. Co
ntrol will au
tomat
ica
lly
re
se
t af
ter
th
re
e h
o
u
rs.
13
.
C
on
tr
ol m
u
st b
e
g
roun
de
d a
t pin
10
of
12-
p
in
con
n
e
ctor
.
14
.
N
A -
N
o
t Ap
plicable
15
.
S
p
a
re
t
e
rm
in
al an
d w
ir
e
n
o
t
availab
le o
n
so
me
ap
plicatio
ns. I
n
sula
te co
nn
ecto
r
if no
t ava
ila
ble.
RE
D
LO
RE
D
ME
D
L
O
BLU
CO
M
W
HT
BLK
HI
YE
L
M
E
D HI
ME
D
CO
M
HI
ME
D
ME
D
L
O
LO
NO
TE
#15
OR
N
SP
ARE
M
E
D HI
SP
ARE
BLU
NO
TE
#15
—12—
