S9360B, S9361B, S9370B, S9371B, S9380B, S9381B INTEGRATED WATER HEATER CONTROLLERS
69-1792—09
12
Common Connectors
a
Indicates optional connection based on configuration.
HSI Model Specific Connectors
In addition to the common connectors listed above, Table 4 identifies connectors available on the HSI model
board assemblies.
a
Indicates optional connection based on configuration.
Table 3. Connectors common to both spark-to-pilot and hot surface ignition options.
Connection/Color
Pin
Mating Plug
Description
Flame Sense
1 of 1
3/16 in. female quick-
connect
Connection to Flame Rod
Sensor 1/White
1 of 3
Molex
®
43061-0003
NTC 1-1
2 of 3
Sensor Common
3 of 3
NTC 1-2
Sensor 2
a
/White
1 of 2
Molex
®
43061-0002
NTC Temperature Sensor
2 of 2
EnviraCOM/Black
1 of 3
Stripped Bare Wire
ECOM Data “1”
2 of 3
ECOM R “2”
3 of 3
ECOM C “3”
EnviraCOM Diag/White
1 of 3
“Pen” Diagnostic Tool with
0.1 in. spacing
ECOM Data “1”
2 of 3
ECOM R “2”
3 of 3
ECOM C “3”
Transformer
Primary/White
1 of 3
Molex
®
50-81-1030
L1
2 of 3
Earth Ground
3 of 3
Neutral
Transformer
Secondary/White
1 of 2
Molex
®
50-81-1020
24 Vac Input
2 of 2
Earth Ground
“Control”/White
1 of 9
Molex
®
50-81-1090
Pressure Switch
a
2 of 9
Pilot Valve
a
3 of 9
Pressure Switch
a
4 of 9
AC N.C. Switch
5 of 9
Main Valve
6 of 9
AC N.C. Switch
7 of 9
N.C.
8 of 9
MV/PV (Valve Common)
9 of 9
N.C.
Table 4. HSI model specific connectors.
Connection
Pin
Mating Plug
Description
On/Off Circulator
a
/White 1 of 4
Molex
®
50-84-1061
L1 Relay Out
2 of 4
Earth Ground
3 of 4
Neutral
4 of 4
Neutral
Line Voltage Input/Red
1 of 3
Molex
®
50-84-1031
L1
2 of 3
Earth Ground
3 of 3
Neutral
Induced Draft Blower
(Combustion Air)/Red
1 of 4
Molex
®
50-84-1041
L1 Relay Out
2 of 4
Earth Ground
3 of 4
Neutral
4 of 4
Neutral
HSI/Red
1 of 2
Molex
®
50-84-1021
L1 Relay Out
2 of 2
Flame Sense/(N) Relay Out
