68
Remove the front cover panel on the water heater.
Find DIP Switch 2 located in the top-right portion of
the control board. The switch labeled “DIP 2” is the
bottom switch.
The factory settings for this switch should all be in the
OFF position (DOWN).
If altitude is above 3,280 ft. (1,000 m) and below
6,560 ft. (2,000 m), change the third switch on “DIP
2” to the ON position (UP).
If altitude is above 6,560 ft. (2,000 m) and below
9,840 ft. (3,000 m), change the fourth switch to the
ON position (UP).
NOTICE:
DO NOT
alter any other DIP switch
settings. The manifold pressure will be reduced
accordingly.
Replace the front cover panel.
Turn on the gas and water to the water heater by
opening the shut-off valves.
Control Board
Dip Switches
3
Dip switch
adjustment
3,280 feet
(1,000 m)
thru
6,560 feet
(2,000 m)
5
Start/Adjust
2
7
4
As set
from factory
Dip switch
adjustment
6,560 feet
(2,000 m)
thru
9,840 feet
(3,000 m)
6
INSTALLATION INSTRUCTIONS
High-Altitude DIP Switch Adjustments (cont.)
8
