Control - A.O. Smith TC-049R3 Service Handbook

RESIDENTIAL GAS AND ELECTRIC WATER HEATER
This portion of this manual applies to the Operations and Servicing of Residential Gas, Tank
Type, Water Heaters, which are vented atmospherically and use a thermocouple as their electrical
source.
Construction: See also "General" section of this
manual.
l: There is one control on this style of water heater. The control has a main gas regulator,
Contro
pilot gas regulator, on-off-pilot knob, controls water temperature, has a temperature adjustment
knob, and a high water temperature limit safety.
A.O. Smith Water Products Company
©2005
SERVICE HANDBOOK
RESIDENTAL GAS WATER HEATER SERVICE
Technical Training Department
6
σ(delta)
Note: The word "Hot"
may or may not be
present on the control
knob
Ashland City, TN