High-Altitude Installations - A.O. Smith ATX-199 Instruction Manual

Fire and Explosion Hazard
Under no circumstances should the
input exceed the rate shown on the
water heater's rating label.
Overfiring could result in fire or
explosion.
Gas and carbon monoxide detectors are
available.
Breathing Hazard - Carbon Monoxide Gas
Under no circumstances should
the input exceed the rate shown
on the water heater's rating label.
Overfiring could result in damage to
the water heater and sooting.
Gas and carbon monoxide detectors
are available.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
• Warning: Turn off the power supply to the water
heater before changing the DIP switch settings.
• Warning: Failure to observe these warnings could
lead to carbon monoxide poisoning or death.
•
•

HIGH-ALTITUDE INSTALLATIONS

WARNING
1.
2.
3.
4.
3 (page 8).
5.
6.
Upper DIP
Switch
Bank
Lower DIP
Switch Bank
Figure 34. Location of DIP Switches
7.
Table 17
Table 17. High Altitude DIP Switch Settings
Altitude
(DEFAULT)
NOTE:
positions.
33
Table 17.
DIP Switch Settings
ON 1 2 3 4 5 6
OFF
OFF
OFF
OFF
ON 1 2 3 4 5 6
OFF
OFF
OFF
ON 1 2 3 4 5 6
OFF
OFF
OFF
ON 1 2 3 4 5 6
OFF
OFF
ON 1 2 3 4 5 6
OFF
Figure