A.O. Smith ATI-140H-N Service Handbook page 21

Table 7: Altitude-Specific DIP Switch Settings (Outdoor Models)
Outdoor model 140 (T-H3M): Propane
ELEVATION LEVEL
0
0 (DEFAULT) (DEFAULT)
2,000
1*
2,000
2
4,000
4,000
3**
6,000
Over 6,000 4
Special
*Se are li ed
pr
Service
pr
Outdoor model 140 (T-H3M) : Natural gas
ELEVATION LEVEL
0
0 (DEFAULT)
(DEFAULT)
2,000
1*
2,000
2
4,000
4,000
3**
6,000
4
Over 6,000
Special
See DIP switch graphics on page 19.
DIPSWITCH SETTINGS
NO.3 NO.4
OFF OFF
OFF ON
OFF OFF
ON OFF
T
ON OFF
alla
per ev "Level 3" e
e a re are ma y
r
DIPSWITCH SETTINGS
NO.3 NO.4
OFF OFF
OFF ON
OFF OFF
ON OFF
T
ON OFF
OUTPUT
REDUCTION
NO.5
OFF N/A
OFF N/A
ON -6 %
ON -9 %
cal Ser
OFF N/A
140 (T-H3M)
, c
k a ed
OUTPUT
REDUCTION
NO.5
OFF N/A
OFF N/A
ON -6 %
ON -9 %
cal Ser
OFF N/A
Condensing Models: On-Demand Water Heater Service Handbook • 21
FAN MOTOR
SPEED
CHANGE
N/A
6 %
10 %
14 %
-7%
T cal
FAN MOTOR
SPEED
CHANGE
N/A
6 %
10 %
14 %
-7%