Navien NCB-180, Service Manual

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20 NCB Service Manual Version 1.0

Set of DIP Switches 2 (Set of 8)
The DIP SW 2 on the circuit board configures additional
features at the time of installation, such as temperature control
modes.
Switch Function Setting
1
Temperature
Control
Return Water 1-ON
Supply Water 1-OFF
2 Reserved - -
3 Reserved - -
4 Reserved - -
5 & 6 Country select
USA & Canada
5-OFF, 6-
OFF
Reserved
5-OFF, 6-
ON
Reserved
5-ON, 6-
OFF
Reserved
5-ON, 6-
ON
7 Thermostat
Permanent CH
demand
7-ON
used 7-OFF
8
Exhaust
Thermostat
Temperature
Limit Unused
8-ON
Setting 8-OFF