A.O. Smith ATI-140H-N Service Handbook page 20

Table 6: Altitude-Specific DIP Switch Settings (Indoor Models)
Indoor models: Propane
ELEVATION LEVEL
0 to 2,000
0
(DEFAULT)
2,000 to
1
3,000
2*
3,000 to
5,000
3
4*
5,000 to
7,500
5
7,500 to
6
10,100
Special
Indoor models: Natural Gas
ELEVATION LEVEL
0 to 2,000
0
(DEFAULT)
2,000 to
1
3,000
2*
3,000 to
5,000
3
4*
5,000 to
7,500
5
7,500 to
6
10,100
Special
*The se are not listed in the Installa
See DIP switch graphics on page 19.
20 • Condensing Models: On-Demand Water Heater Service Handbook
DIPSWITCH SETTINGS
NO.3 NO.4
OFF OFF
OFF ON
ON ON
OFF OFF
ON OFF
OFF ON
ON ON
ON OFF
DIPSWITCH SETTINGS
NO.3 NO.4
OFF OFF
OFF ON
ON ON
OFF OFF
ON OFF
OFF ON
ON ON
ON OFF
manual and owner's
OUTPUT
REDUCTION
NO.5
OFF N/A
OFF N/A
OFF -3 %
ON -5 %
ON -7 %
ON -11 %
ON %
OFF N/A
OUTPUT
REDUCTION
NO.5
OFF N/A
OFF N/A
OFF -4 %
ON -6 %
ON -8 %
ON -11 %
ON %
OFF N/A
of 140 (T-H3M)
FAN MOTOR
SPEED CHANGE
N/A
3 %
5 %
7 %
9 %
11 %
%
-7%
FAN MOTOR
SPEED CHANGE
N/A
7%
10 %
15 %
17 %
20 %
%
-7 %