100
Rev. 2
SCHEMATICS
TO A
V
OI
D
P
O
SSI
B
L
E ELEC
TRI
C
A
L
SHOC
K,
PERS
O
NAL
IN
JURY
,
OR D
E
ATH,
DI
SCON
NECT
THE PO
W
E
R
B
E
FORE
SERVI
C
ING.
WA
RN
ING
!
GUID
HEATCRAFT HSI 1-1A INTEGRATED IGNITION CONTROL
This schematic is for reference only. Not all wiring is as shown above, refer
to the appropriate wiring diagram for the unit being serviced.
OP
T
IO
N
A
L
SEN
SO
R
PA
R
K
PA
R
K
EL
EC
T
R
O
N
IC
A
IR C
L
E
A
NE
R
HU
M
ID
IF
IE
R
PRE
SSURE
SWITC
H
AUX
LI
M
IT
PRIM
ARY
LI
M
IT
FL
AM
E
TH
TR
RO
1
HL
1
PS
RO
2
MV
MV
HL
O
FP
C
OOL
(Y
)
HE
A
T
(
W
)
24
V
P
O
W
E
R
(
R
)
BL
O
W
ER
(
G
)
TH
H
L
O
FP
RO
L
L
O
UT
SWITC
H
RO
2
RO
1
PS
TR
MV
H
L
1
GN
D
MV
120
V
24V
G
A
S VAL
VE
HEAT
COOL
TRAN
SFO
R
M
E
R
F+
F-
TX
LI
N
E
PA
R
K
PA
R
K
HU
M
EA
C
XF
M
R
LI
N
E
CI
R
N
N
N
CO
O
L
AC
B
LO
W
AC
B
CN1
N
N
R
G
W
Y
C
HU
M
120V
A
C
H
EAT
AC
B
EA
C
BL
W
R
CM
B
IG
N
BLOW
ER
MO
T
O
R
LI
N
E
HO
T
120 VAC
LI
N
E
N
E
UT
RA
L
IG
NI
TO
R
GN
D
CO
M
B
US
T
IO
N
AI
R
BLOW
ER
