Takagi T-H3-DV - Electrical Connections

TROUBLESHOOTING
TROUBLESHOOTING
28 • On-Demand Water Heater Service Handbook for 240, 340 & 540 Condensing Models

Elevaon Level
DIP switch sengs
Output
reducon
Fan mot
or
speed
change
No.2 No.3 No.4
0 to 2,000 . 0(DEFAULT) OFF OFF OFF N/A N/A
2,000 to 3,000 . 1 OFF ON OFF N/A 3 %
3,000 to 5,000 .
2* ON ON OFF -8 % 5 %
3 OFF OFF ON -11 % 7 %
5,000 to 7,500 .
4* ON OFF ON -14 % 9 %
5 OFF ON ON -18 % 12 %
7,500 to 10,100 . 6 ON ON ON -22 % 15 %
Special funcon* ON OFF OFF N/A -7%
Table 12: Indoor model, 540 (T-H3) - Propane
Apply the altitude setting by adjusting DIP switches 2, 3, and 4 on
the lower bank. See Figure 14.
Figure 14
Lower bank of
DIP switches
: 540 (T-H3)
Elevaon Level
DIP switch sengs
Output
reducon
Fan mot
or
speed
change
No.2 No.3 No.4
0 to 2,000 .
0(DEFAULT) OFF OFF OFF N/A N/A
2,000 to 3,000 . 1
OFF ON OFF N/A 6%
3,000 to 5,000 .
2*
ON ON OFF -6 % 10 %
3
OFF OFF ON -9 % 14 %
5,000 to 7,500 .
4*
ON OFF ON -12 % 18 %
5
OFF ON ON -15 % 22 %
7,500 to 10,100 . 6
ON ON ON -18 % 26 %
Special funcon* ON OFF OFF N/A -7 %
Table 13: Indoor model, 540 (T-H3) - Natural Gas
Apply the altitude setting by adjusting DIP switches 2, 3, and 4 on the lower bank. See Figure 14.
* **These settings are not listed in the 240(T-H3J),340(T-H3S), and 540(T-H3) installation manual.
WARNING
Failure to properly set the DIP switches could cause carbon monoxide poisoning, resulting in
severe personal injury or death.