Rinnai I Series, Installation And Operation Manual, Page: 82 / 136

82 Rinnai I - Series Condensing Boiler Combi Manual
To change the altitude, follow the steps below.
1. Remove the boiler ’ s front panel by removing the four screws that secure the panel.
2. Locate the PC Board (lower left side of unit) (see below).
3. Locate the DIP switches on the PC Board (see below).
4. Adjust DIP switches 6 and 7 to on or off based on the altitude settings in the table below.
ALTITUDE DIP
Switch 6
DIP
Switch 7
0 - 2,000 ft (0 - 610 m) (Default) OFF OFF
2,001 - 5,400 ft (610 - 1,646 m) ON OFF
5,401 - 7,700 ft (1,646 - 2,374 m) OFF ON
7,701 - 10,200 ft (2,347 - 3,109 m) ON ON
When a DIP switch is adjusted, it is not necessary to adjust the gas pressure
setting for high altitude.
IMPORTANT
DIP Switches
PC Board
ON
OFF