12
Page
Bank of DIP switches
110U (AT-KJr3U-IN/OS) and 310U (AT-K5U-IN/OS)
Computer board
NOTE:
The dark squares indicate the correct DIP switch positions.
Lower bank of DIP switches
510U (AT-D3U-IN/OS)
Computer board
Installation
Installation Manual
Outdoor models
0 to 2,000 ft.
(0 to 610 m)
(DEFAULT)
2,001 to
4,000 ft.
(611 to 1,219 m)
4,001 to
6,000 ft.
(1,220 to 1,829 m)
110U (AT-KJr3U) and
310U (AT-K5U) models
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : OFF
No. 5 : OFF
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : OFF
No. 5 : ON
OFF
ON
1 2 3 4 5 6 7 8 9 10
No. 3 : ON
No. 4 : OFF
No. 5 : ON
510U (AT-D3U) model
(Lower bank of
DIP switches)
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : OFF
No. 4 : OFF
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : OFF
No. 4 : ON
OFF
ON 1 2 3 4 5 6
No. 2 : ON
No. 3 : OFF
No. 4 : ON
Indoor models
0 to 2,000 ft.
(0 to 610 m)
(DEFAULT)
2,001 to
3,000 ft.
(611 to 914 m)
3,001 to
5,000 ft.
(915 to 1,524 m)
5,001 to
7,500 ft.
(1,525 to 2,286 m)
7,501 to
10,100 ft.
(2,287 to 3,078 m)
110U (AT-KJr3U) and
310U (AT-K5U) models
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : OFF
No. 5 : OFF
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : ON
No. 5 : OFF
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : OFF
No. 5 : ON
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : OFF
No. 4 : ON
No. 5 : ON
OFF
ON 1 2 3 4 5 6 7 8 9 10
No. 3 : ON
No. 4 : ON
No. 5 : ON
510U (AT-D3U) model
(Lower bank of
DIP switches)
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : OFF
No. 4 : OFF
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : ON
No. 4 : OFF
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : OFF
No. 4 : ON
OFF
ON 1 2 3 4 5 6
No. 2 : OFF
No. 3 : ON
No. 4 : ON
OFF
ON 1 2 3 4 5 6
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 models and 6,000
ft. (1,829 m) for outdoor
models.
Altitude
DIP switches
HIGH-ALTITUDE INSTALLATIONS
Check the elevation where your water heater is installed. Set your DIP switches according to altitude as
shown below.
Содержание AT-KJr3U-IN
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