Camus Hydronics DMH-081 - Page 80

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15.5 DETAILED CONNECTOR DESCRIPTION
Connector
Pin #
Connector Description
J1
2
Flame sensor
3
Igniter ground
J2
1
Blower tach signal
2
Blower Vdc power
3
Blower PWM signal
4
Blower ground signal
J3
A1
Modbus +
B1
Modbus -
C1
+Vdc Display
A2
Lead Lag, Modbus +
B2
Lead Lag, Modbus -
C2
-Vdc Display
J4
2, 3 DHW Pump, 1/6hp
4
24Vac or 115Vac for pump
contact
5,6 3-way diverter valve
7
Boiler pump contact
10
24Vac return
12
Ground
J5
1 Interlock
2 Gas Valve contact
J6
1
Blocked Flue
2
Flow switch
7,8 Alarm, dry contacts
Connector
Pin #
Connector Description
J8
1 24Vac for SOLA
2
24Vac return
3
Remote enable/disable signal
4,5
Inlet sensor
6,7
4-20mA Input
8,9,10
Outlet sensor, high limit
11, 12
System or Outdoor sensor
J9
1,2 DHW sensor
4,5 Stack sensor