High-Altitude Installations - A.O. Smith T-H3M-DV Installation Manual And Owner's Manual

Check the elevation where your water heater is installed Set DIPswitches shown in the tables below
depending on the altitude
Indoor model
0 to 2,000 ft.
Altitude
ON
OFF
DIPswitches
Outdoor model
0 to 2,000 ft.
Altitude
ON
OFF
DIPswitches
NOTE: The dark squares indicate the direction the DIPswitches should be set to
Only adjust the necessary switches
Computer board

HIGH-ALTITUDE INSTALLATIONS

2,000 to
(DEFAULT) 3,000 ft.
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
ON
OFF
No 3 : OFF No 3 : OFF
No 4 : OFF No 4 : ON
No 5 : OFF No 5 : OFF
2,000 to
(DEFAULT) 4,000 ft.
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
ON
OFF
No 3 : OFF No 3 : OFF
No 4 : OFF No 4 : OFF
No 5 : OFF No 5 : ON
Bank of DIPswitches
28
3,000 to 5,000 to
5,000 ft. 7,500 ft.
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10
ON ON
OFF OFF
No 3 : OFF No 3 : OFF
No 4 : OFF No 4 : ON
No 5 : ON No 5 : ON
4,000 to
6,000 ft.
1 2 3 4 5 6 7 8 9 10
ON
OFF
No 3 : ON
No 4 : OFF
No 5 : ON
Installation altitude
The maximum certified
or allowable installed
altitude is 10,100 ft for
indoor model and 6,000 ft
for outdoor model
Page
Installation Manual
Installation
7,500 to
10,100 ft.
1 2 3 4 5 6 7 8 9 10
ON
OFF
No 3 : ON
No 4 : ON
No 5 : ON