Front Panel Dip Switches - Navien NHB-055 Installation & Operation Manual

6.2 Front Panel Dip Switches

Dip Switch 1 (10 switch unit)
The DIP SW 1 on the front panel configures the temperature unit
and high altitude settings.
Before changing the settings, lift the rubber cover to access the
front panel DIP switches.
ON
1 2 3 4 5
Switch Function Setting
°C (Celsius)
Temperature
2
Unit
°F (Fahrenheit)
0-1,999 ft (0-609 m)
2,000-5,399 ft
(610-1,645 m)
High
4 & 5
5,400-7,699 ft
Altitude*
(1,646-2,346 m)
7,700-10,100 ft
(2,347-3,078 m)
* At altitudes above 2,000 ft (610 m) the boiler's rating will reduce by 4 %
for each 1,000ft (305 m) gain in altitude.
This boiler may be installed at altitudes of 10,100 ft
Note
(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, set the DIP switches as detailed in the table
above.
ON
6 7 8 9 10 1 2
2-ON
2-OFF
4-OFF, 5-OFF
4-ON, 5-OFF
4-OFF, 5-ON
4-ON, 5-ON
Dip Switch 2 (2 switch unit)
The DIP SW 2 on the front panel configures settings for the type of
gas.
Before changing the settings, lift the rubber cover to access the
front panel DIP switches.
ON
1 2 3 4 5 6
Switch Function Setting
Natural Gas
2 Gas Type
Propane Gas
ON
7 8 9 10 1 2
NG LP
ON ON
2 2
2-OFF
2-ON
Setting the DIP Switches 49