Navien NCB-180 Service Manual page 24

Setting the Front Panel DIP Switches
Before change the settings, lift the rubber cover to access the front panel DIP switches.
 Set of DIP Switches 1 (Set of 10)
The DIP SW 1 on the front panel configures the temperature ufnit, well pump, and high altitude settings.
SW1 NO. Application
1 Reserve
Temperature
2
Unit
3 Well Pump
4 & 5 High Altitude
6 Reserve
7 Reserve
8 Reserve
9 Reserve
10 Reserve
S/W 1
Setting
℃ (Celsius)
℉ (Fahrenheit)
Well Pump ON
Well Pump OFF
0-1,999 ft (0-609 m)
2,000-5,399 ft (610-1,645 m)
5,400-7,699 ft (1,646-2,346 m)
7,700-10,100 ft (2,347-3,078
m)
S/W 2
2-ON
2-OFF
3-ON Well Pump Mode
These settings are to be used with well system
3-OFF
when an external pump is wired to the boiler.
4-OFF, 5-OFF High Altitude
Above 2,000 ft (610 m), the boiler will de-rate
4-ON, 5-OFF
by 4% for each 1,000 ft (305 m) of altitude gain.
This boiler may be installed at elevations up to
4-OFF, 5-ON
10,100 ft (3,078 m) for use with Natural Gas
and 4,500 ft (1,370 m) for use with Propane. To
use the boiler at a specific altitude, the DIP
4-ON, 5-ON
switches should be set as described above.
Remarks