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Temperature Regulation
The thermostat is adjusted to the pilot position when
it is shipped from the factory. Water temperature can
be regulated by moving the temperature dial to the
preferred setting. The preferred starting point is 120°F
at the "HOT" setting. Align the knob with the desired
water temperature as shown in Figure 22. There is a
hot water scald potential if the thermostat is set too high.
NOTE: Temperatures shown on the gas control valve/
thermostat are approximates. The actual temperature of
the heated water may vary.
Due to the nature of the typical gas water heater, the water
temperature in certain situations may vary up to 30F ° (16.7 C°)
higher or lower at the point of use such as, bathtubs, showers,
sink, etc.
F!t 17.'1 [el:1;|
Water temperature over 125°F
(52°C) can cause severe burns
instantly resulting in severe injury
ordeath.
Children the elderly, and the
_t_ " physically or mentally disabled
are at highest riskforscald injury.
Feel water before bathing or
showering.
° _ _ TemperatUreavailable.limiting valves are
Read instruction manual for safe
temperature setting
HOTTER WATER CAN SCALD: Water heaters are intended to
produce hot water. Water heated to a temperature which wilt
satisfy space heating, clothes washing, dish washing, and other
sanitizing needs can scald and permanently injure you upon
contact. Some people are more likely to be permanently injured
by hot water than others. These include the elderly, children,
the infirm, or physically/mentally handicapped. If anyone using
hot water in your home fits into one of these groups or if there is
a local code or state taw requiring a certain temperature water
at the hot water tap, then you must take special precautions. In
addition to using the lowest possible temperature setting that
satisfies your hot water needs, a means such as a mixing valve
should be used at the hot water taps used by these people or
at the water heater. Mixing valves are available at plumbing
supply or hardware stores. Follow manufacturer's instructions
for installation of the valves. Before changing the factory setting
on the thermostat, see Figures 21 and 22.
Never allow small children to use a hot water tap, or to draw
their own bath water. Never leave a child or handicapped person
unattended in a bathtub or shower.
NOTE: Awater temperature range of 120°F-140°F (49°C-60°C)
is recommended by most dishwasher manufacturers.
IMPORTANT: Adjusting the thermostat past the 120°F bar on
the temperature dial wilt increase the risk of scald injury. Hot
water can produce first degree burns within:
110
116
116
122
131
140
149
154
(normal shower temp.)
(pain threshold)
35 minutes
1 minute
5 seconds
2 seconds
1 second
instantaneous
45 minutes
5 minutes
25 seconds
5 seconds
2 seconds
1 second
(U.S. Government Memorandum, C.RS.C., Peter L.Armstrong, Sept. 15,1978)
FIGURE 21.
FIGURE 22.
NOTE: During tow demand periods when hot water is not being
used, a lower thermostat setting will reduce energy losses and
may satisfy your normal hot water needs. If hot water use is
expected to be more than normal, a higher thermostat setting
may be required to meet the increased demand. When leaving
your home for extended periods (vacations, etc.), turn the
temperature dial to the vacation (VAC) setting. This wilt maintain
the water at tow temperatures with minimum energy losses and
prevent the tank from freezing during cold weather.
2O
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