American Water Heater GAS-FIRED COMMERCIAL WATER HEATER - Manual (Page 30)

30
MAINTENANCE
The following maintenance should be performed by a qualified service
technician at the minimum periodic intervals suggested below. In some
installations, the maintenance interval may be more frequent depending on
the amount of use and the operating conditions of the water heater. Regular
inspection and maintenance of the water heater will help to insure safe and
reliable operation.
1. Annual checks of the ignition systems (millivolt and electronic),
temperature controls and any other water heater controls are necessary
to ensure proper operation. Also, all safety shut-off valves must be
checked to verify proper operation and tightness.
2. The flow of combustion and ventilation air MUST NOT be restricted.
Clear the combustion air openings of any dirt, dust, or other restrictions.
WARNING! The ventilation air system may be HOT.
3. At all times keep the water heater area clear and free from combustible
materials, gasoline and other flammable vapors and liquids.
4. Bi-annually conduct a visual check of the pilot and burner flames to
determine that they are burning properly. See “Burner Flame Check”
section on page 29 for example of proper burner flame pattern.
Maintenance continued-
WARNING
Water heaters are heat producing appliances. To avoid damage or injury
there shall be no materials stored against the water heater or vent system,
and proper care shall be taken to avoid unnecessary contact (especially by
children) with the water heater and vent system. UNDER NO
CIRCUMSTANCES SHALL FLAMMABLE MATERIALS, SUCH AS
GASOLINE OR PAINT THINNER BE USED OR STORED IN THE
VICINITY OF THIS WATER HEATER, VENT SYSTEM OR IN ANY
LOCATION FROM WHICH FUMES COULD REACH THE WATER
HEATER OR VENT SYSTEM.
IMPORTANT
The water heater should be inspected at a minimum annually by a
qualified service technician for damaged components and/or joints
not sealed. DO NOT operate this water heater if any part is found
damaged or if any joint is found not sealed.
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