Effective: October 2018
8 of 12
F-35-2000
HSI Wiring Diagram
J4
J2
J1
SW2
For field settings,
see note
Lim it
R91
Operator
Set Point
SW1
J15
D80
D23
D90
Remote
LED
D
RST
PWR
Reset
F1
T2
FS
P2
GND
P1
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
FC
-
FC
+
S2/
F
S
S1
Remote Flame
Sense Rod
Hot
Surface
Ignitor
DHW
S
e
n
s
o
r
S
y
s
tem
S
e
ns
o
r
Ou
td
o
o
r S
e
n
s
o
r
tN
4
+ E
M
S
- 0
-1
0
V
D
C
Al
a
rm
LW
C
O
Re
m
o
te
Re
s
e
t
Fl
o
w
S
w
it
ch
DHW
T
H
Th
e
rm
o
s
ta
t
FT-B us B
FT-B us A
PI M
Slave
V+
Boiler
Identity Card
V in
GN
D
High Limit
Sensor
Outlet Sensor
Air Flow
Safet y #2
Safet y #1
Inlet Sensor
Vent Sensor
4 to 20 MA
Fan Power (18 V DC )
Fan GND
Flow SE N GND
Flow SE N P W (12 V DC )
P WM-Out
F
low
S
ens
or
T
a
c
hom
et
er
T
o
J
10
P
in
3
T
o
J
10
P
in
4
24 VAC
L1
L2
2 STG / MV
MV / PV
RTN
Hot
Dry
Contact
Blower
S ys tem
P ump
B oiler
P ump
DHW
P ump
L1 – S
120 V AC
120 V AC
120 V AC
1
10
9
1
1
2
1
2
3
1
2
3
4
1
2
3
4
5
6
1
2
3
4
1
2
3
5
6
7
4
8
1
2
3
5
6
7
4
8
1
2
1
2
5
4
3
6
1
2
3
4
J3
Ho
st
Co
n
tr
o
ll
e
r B
u
s
Host
Controller
