A.O. Smith TC-049R3 Service Handbook page 15

RESIDENTIAL GAS AND ELECTRIC WATER HEATER
Residential Gas – continued
Condensation is a mild acid – it will corrode steel
is usually noted when:
Condensation
•
water dripping is heard (only) while the main burner is on,
•
there is "water" around the heater just after the heater has been operating,
•
there are small, black or red granules on the main burner or top of the heater or
•
corroded jacket or vent piping is noted.
If ...
any of the above conditions exist
Suggested Multiple Heater Water Piping Required For
A.O. Smith Water Products Company
©2005
SERVICE HANDBOOK
Proper Operation of Top Connect Models
TEMPERATURE/PRESSURE RELIEF VALVES
... then
raise the supply air temperature or
•
increase stored water temperature or
•
increase the size of the tank
•
You would not wish to lower combustion
efficiency – this would waste gas. Use
materials (stainless steel, PVC etc.) that
will not be affected by the condensation
Installed in accordance with local codes.
Technical Training Department
14
Ashland City, TN