Rheem RTGH Owners Manual

75
Start/Adjust
INSTALLATION INSTRUCTIONS
High-Altitude DIP Switch Adjustments (cont.)
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 2000 ft. (610 m) and below 5,400 ft.
(1650 m), change the third switch on “DIP 2” to the ON
position (UP). B-1 setting completes.
If your vent lenth is relatively longer, B-2 setting is
required. Change, the second switch on "DIP 2" to the
ON position (UP).
If altitude is above 5,400 ft. (1650 m) and below 8,500 ft.
(2590), change the fourth switch to the ON position (UP).
C-1 setting completes.
If your vent lenth is relatively longer, C-2 setting is
required. Change, the second switch on "DIP 2" to the
ON position (UP).
NOTICE:
DO NOT alter any other DIP switch settings. The manifold
pressure will be reduced accordingly.
Some models are not available at higher than 5400 ft
(1650m). Please contact technical service listed on page
26 of this use and care manual if you have any questions
of high altitude DIP switch adjustments.
Replace the front cover panel.
Control
Board
Dip Switches
3
5
6
2
4
As set
from factory
MIN MAX ADJ
7
8
9