OMM-0153_E
• 5/11/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 27 of 124
CENTURION Installation, Operation & Maintenance Manual
SECTION 2: INSTALLATION
Connector Strip J6 Terminals
Pin # Name
Description
1
Remote Interlock Out
Connection to an auxiliary device interlock, such as louver open
feedback or flow sensor.
2
Remote Interlock Return
3
Delayed Interlock 1 Out
Connection to an auxiliary device interlock that requires a delay
before the plant starts firing.
4
Delayed Interlock 1 Return
5
Delayed Interlock 2 Out
Connection to an auxiliary device interlock that requires a delay
before the plant starts firing.
6
Delayed Interlock 2 Return
Connector Strip J7 Terminals
Pin # Name
Description
1
Spare 2 Relay N.O.
Connection to an auxiliary device enable/disable signal, such as:
•
System Pump
•
Pump 2
•
Louver 2
•
Summer Pump
•
Louver
•
Damper
To assign/program its function, go to the Controller’s
Main Menu
→
Advanced Setup
→
Ancillary Devices
→
Relays
, then set
Select
Relay
to
Spare 2 Relay
and set
Relay Name
to one of the above
devices.
2
Spare 2 Relay Com
3
DHW Pump Relay N.O.
Tank Pump 2
4
DHW Pump Relay Com
5
V2/Spare 1 Relay N.O.
Connection to an auxiliary device enable/disable signal, such as:
•
Tank Pump 2
•
Summer Pump
•
Louver
•
System Pump
•
Pump 2
•
Louver 2
To assign/program its function, go to Main Menu
→
Advanced Setup
→
Ancillary Devices
→
Relays, then set Select Relay to V2/Spare 1
Relay and set Relay Name to one of the above devices.
6
V2/Spare 1 Relay Com
7
Reserve Relay N.O.
Connection to a reserve/backup Water Heater enable/disable signal.
8
Reserve Relay Com
9
Swing Valve 1 Relay N.O.
Connection to a Swing Valve 1 enable/disable signal.
10
Swing Valve Relay Com
11
Fault Relay N.O.
Connection to a Fault/Remote Alarm enable/disable signal.
12
Fault Relay Com
13
Aux Relay N.O.
Connection to an auxiliary device enable/disable signal.
14
Aux Relay Com
Connector Strip J14 Terminals
Pin #
Name
Description
1
BAS RS485 +
Connection to the building automation system (BAS) network (Modbus RTU,
BACnet MSTP). For IP network, use the Ethernet port.
2
BAS RS485 -
3
RS485 Local +
Reserved for internal use only
4
RS4585 Ground
5
RS485 Local -