Temperature Settings On The Pcb - Takagi AT-KJr3U-IN Installation Manual And Owner's Manual

TEMPERATURE SETTINGS ON THE PCB

• DO NOT adjust the upper bank of DIP switches for the 510U (AT-D3U-IN/OS).
• Turn off the power supply to the water heater before changing the DIP switch
settings.
WARNING
There are two preset temperatures, 120 °F (50 °C) and 140 °F (60 °C), that you can select by changing the
DIP switch settings on the computer board without the controller. See the table below.
When the controller is in normal operation, the set temperature of the controller is given priority over the
set temperature of the DIP switch settings.
• The temperature has been preset at the factory to 120 °F (50 °C).
110U (AT-KJr3U-IN/OS)and 310U (AT-K5U-IN/OS)
120 °F (50 °C)
DEFAULT
ON 1 2 3 4 5 6 7 8 9 10
OFF
No. 9 : OFF
510U (AT-D3U-IN/OS)
(Lower bank of DIP switches)
120 °F (50 °C)
DEFAULT
ON 1 2 3 4 5 6
OFF
No. 5 : OFF
NOTE: The tables above show the correct DIP switch position for each temperature setting.
(Each black square represents a switch.) For the 110U (AT-KJr3U-IN/OS) and 310U (AT-K5U-
IN/OS), only adjust DIP switch No. 9. For the 510U (AT-D3U-IN/OS), only adjust DIP switch
No. 5 on the lower bank. Do not adjust the other DIP switches for temperature adjustment.
WITHOUT CONTROLLER
140 °F (60 °C)
1 2 3 4 5 6 7 8 9 10
ON
OFF
No. 9 : ON
140 °F (60 °C)
ON 1 2 3 4 5 6 2 3 4 5 6
OFF
No. 5 : ON
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Page
Computer board
DIP switches
Computer board
Upper bank of
DIP switches
Lower bank of
DIP switches
Owner's Guide
Normal Operation