High-Altitude Installations - Takagi 140 Indoor Installation Manual And Owner's Manual

• 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.
WARNING
• Failure to observe these warnings could lead to carbon monoxide poisoning
or death.
Check the elevation where your water heater is installed. Set DIP switches shown in the table below
depending on the altitude.
Indoor model
0 to 2,000 ft
Altitude
(0 to 610 m)
(DEFAULT)
1 2 3 4 5 6 7 8 9 10
ON
OFF
DIP switches
No. 3 : OFF
No. 4 : OFF
No. 5 : OFF
Outdoor model
0 to 2,000 ft
Altitude
(0 to 610 m)
(DEFAULT)
1 2 3 4 5 6 7 8 9 10
ON
OFF
DIPswitches
No. 3 : OFF
No. 4 : OFF
No. 5 : OFF
NOTE: The dark squares indicate the correct DIP switch positions.

HIGH-ALTITUDE INSTALLATIONS

2,000 to
3,000 ft
(611 to 914 m) (915 to 1,524 m)
1 2 3 4 5 6 7 8 9 10
ON
OFF OFF
No. 3 : OFF
No. 4 : ON
No. 5 : OFF
2,000 to
4,000 ft
(611 to 1,219 m) (1,220 to 1,829 m)
1 2 3 4 5 6 7 8 9 10
ON
OFF
No. 3 : OFF
No. 4 : OFF
No. 5 : ON
12
3,000 to 5,000 to
5,000 ft 7,500 ft
(1,525 to 2,286 m)
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10
ON ON
OFF
No. 3 : OFF No. 3 : OFF
No. 4 : OFF No. 4 : ON
No. 5 : ON No. 5 : ON
4,000 to
Installation altitude
6,000 ft
The maximum certified
or allowable installed
1 2 3 4 5 6 7 8 9 10
altitude is 10,100 ft
ON
OFF
(3,078 m) for indoor
models and 6,000 ft
No. 3 : ON
(1,829 m) for outdoor
No. 4 : OFF
models.
No. 5 : ON
Computer board
Bank of DIP switches
Page
Installation Manual
Installation
7,500 to
10,100 ft
(2,287 to 3,078 m)
1 2 3 4 5 6 7 8 9 10
ON
OFF
No. 3 : ON
No. 4 : ON
No. 5 : ON