12
Page
Installation
Installation Manual
NOTE:
The dark squares indicate the correct DIP switch positions.
110 and 310 models
Altitude
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)
Switch No. 3
OFF
ON
OFF
Switch No. 4
OFF
OFF
ON
ON
8
7
6
5
4
3
2
1
ON
8
7
6
5
4
3
2
1
ON
8
7
6
5
4
3
2
1
510 model (Left bank of DIP switches)
Altitude
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)
Switch No. 4
OFF
ON
OFF
Switch No. 5
OFF
OFF
ON
ON
6
5
4
3
2
1
ON
6
5
4
3
2
1
ON
6
5
4
3
2
1
Installation altitude
The maximum certified or allowable installed altitude is 6,000 ft (1,829 m) for indoor and out-
door models.
HIGH-ALTITUDE INSTALLATIONS
Check the altitude where your water heater is installed. Set DIP switches shown in the table below. The
DIP switch settings depend on the altitude.
WARNING
•
Adjust the appropriate DIP switches according to model and elevation as
shown 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.
110 and 310 models
Computer board
DIP switches
510 model
Computer board
DIP switches (Left bank)
