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HIGH-ALTITUDE INSTALLATIONS
Check the elevation where your water heater is installed. Set DIP switches shown in the table below
depending on the altitude.
WARNING
•
To adjust high altitude settings, adjust only the No. 2, No. 3, and No. 4
DIP switches in the MIDDLE bank of DIP switches. (See below.) DO NOT
adjust the other DIP switches.
•
Turn off the power supply to the water heater before changing the DIP
switch settings.
•
Failure to observe these warnings could lead to carbon monoxide
poisoning or death.
Installation
Installation Manual
NOTE:
The dark squares indicate the correct DIP switch positions.
Indoor model
0 to 2,000 ft
(0 to 610 m)
(DEFAULT)
2,000 to
3,000 ft
(611 to 914 m)
3,000 to
5,000 ft
(915 to 1,524 m)
5,000 to
7,500 ft
(1,525 to 2,286 m)
7,500 to
10,100 ft
(2,287 to 3,078 m)
Middle bank of DIP
switches
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : OFF
No. 4 : OFF
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : ON
No. 4 : OFF
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : OFF
No. 4 : ON
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : ON
No. 4 : ON
1
2
3
4
5
6
ON
No. 2 : ON
No. 3 : ON
No. 4 : ON
Altitude
DIP switches
Installation altitude
The maximum certified
or allowable installed
altitude is 10,100 ft
(3,078 m) for indoor
model and 6,000 ft
(1,829 m) for outdoor
model.
Outdoor model
0 to 2,000 ft
(0 to 610 m)
(DEFAULT)
2,000 to
4,000 ft
(611 to 1,219 m)
4,000 to
6,000 ft
(1,220 to 1,829 m)
Middle bank of DIP
switches
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : OFF
No. 4 : OFF
1
2
3
4
5
6
ON
No. 2 : OFF
No. 3 : OFF
No. 4 : ON
1
2
3
4
5
6
ON
No. 2 : ON
No. 3 : OFF
No. 4 : ON
Altitude
DIP switches
Middle bank of DIP switches
Upper bank of DIP switches
Lower bank of DIP switches
