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19
changing the factory setting on the thermostat, read the
Temperature Regulation section in this manual, 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: A water temperature range of 120°F-140°F (49°C-60°C)
is recommended by most residential dishwasher
manufacturers.
The thermostat of this water heater has been factory set at its
lowest position (PILOT LIGHTING). It is adjustable and must
be reset to the desired temperature setting to reduce the risk of
scald injury. The mark (
) indicative of approximately 120°F
(49°C) is preferred starting point. Some states have a
requirement for a lower setting.
Turn the water temperature dial clockwise (
) to decrease
the temperature, or counterclockwise ( ) to increase the
temperature.
Should overheating occur or the gas supply fail to shut off, turn
off the manual gas control valve to the appliance.
FIGURE 21.
Time to Produce 2nd & 3rd
Temperature Setting Degree Burns on Adult Skin
VERY HOT=APPROX.180°F (82°C) Nearly instantaneous
D = APPROX.160°F (71°C) About 1/2 second
C = APPROX.150°F (65°C) About 1-1/2 seconds
B = APPROX.140°F (60°C) Less than 5 seconds
A = APPROX.130°F (54°C) About 30 seconds
APPROX.120°F (49°C) More than 5 minutes
LOW = APPROX.100°F (37.8°C) - - - - - - - -
FIGURE 22.
Temperature Regulation
Due to the nature of the typical gas water heater, the water
temperature in certain situations may vary up to 30°F (16.7° C)
higher or lower at the point of use such as, bathtubs, showers,
sink, etc.
Any water heater’s intended purpose is to heat water. Hot
water is needed for cleansing, cleaning, and sanitizing (bodies,
dishes, clothing). Untempered hot water can present a scald
hazard. Depending on the time element, and the people
involved (adults, children, elderly, infirm, etc.) scalding may
occur at different temperatures.
HOTTER WATER CAN SCALD: Water heaters are intended
to produce hot water. Water heated to a temperature which
will 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 law 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, shall 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