19
GENERAL MAINTENANCE
Water Temperature Regulation
WARNING
The higher the setting, the greater the risk of
scalding. Hot water can cause third degree burns
in under one (1) second at 160
o
F (71
o
C), in five (5)
seconds at 140
o
F (60
o
C) and in thirty (30)
seconds at 130
o
F (54
o
C). In households where
there are children, physically challenged individuals
or seniors, mixing valves for point of use are nec-
essary as means of reducing the scalding potential
of hot water.
The gas control valve is factory-adjusted to its low-
est temperature, approximately 70
o
F (21
o
C). When
the water heater is plugged in for the first time, the
gas control valve will start to heat the water to this
temperature. To avoid any unintentional changes in
the water temperature settings, the gas control valve
has a tamper resistant feature included for changing
the temperature setting. If you want to change this
setting for either cooler or warmer water, the following
steps are necessary:
FLASHING
APPROXIMATE
TEMPERATURE
˚F (˚C)
70 (21)
(Vacation)
110 (43)
115 (46)
120 (49)
125 (52)
130 (54)
135 (57)
140 (60)
145 (63)
150 (66)
160 (71)
APPROXIMATE
TIME TO
CAUSE INJURY
N/A
5 Minutes
30 Seconds
5 Seconds
1.5 Seconds
Under 1 Second
DISPLAY
Figure 17
1. “Wake up” the temperature indicators by holding
down both the COOLER and HOTTER temperature
adjustment buttons at the same time for one (1) sec-
ond (see Lighting Instructions). One or two of the
temperature indicators will light up. These indicators
will only remain on for thirty (30) seconds, if no fur-
ther buttons are pressed. After thirty (30) seconds,
the control will go back to “Sleep” mode and both
buttons will again have to be pressed to see the
water temperature setting. Release both of the
temperature adjustment buttons.
2. If this is the first time that the control has been
used, the leftmost green
indicator will be illumi-
nated, indicating the
water temperature set-
ting of approximately
70°F (21°C). If the control
has been in operation
for some time, the water
temperature setting may
indicate a diffe rent tem-
perature. See Figure 17
for an explanation of what
each of the temperature indicators mean.
To decrease the temperature, press and release
the COOLER button once. The temperature indica-
tors will now display the new temperature
setting. Press and release the COOLER button until
you have reached the desired setting.
HOLDING DOWN THE BUTTON WILL NOT
CONTINUE TO LOWER THE SETTING. The
button must be pressed and released for each tem-
perature change desired.
To increase the temperature, press and release
the HOTTER button once. The temperature
indicators will now display the new temperature
setting. Press and release the HOTTER but-
ton until you have reached the desired setting.
HOLDING DOWN THE BUTTON WILL NOT
CONTINUE TO RAISE THE SETTING. The
button must be pressed and released for each
temperature change desired.
To maximize the efficiency of this water heater and
reduce the risk of scalding, it is recommended that
the gas control valve be set at the setting below the
large triangle
(« »)
, which represents approximately
120°F (49°C).
3. When you have completed setting the control, wait
thirty (30) seconds to see that the temperature
indicators go off and the control enters “Sleep”
mode. ALL OF THE TEMPERATURE
INDICATORS WILL BE OFF DURING NORMAL
OPERATION. If at any time you see the indicators
on, there may be a system error and you should
consult the
Troubleshooting Guide
of this document or
contact a trained service professional.
When hot water is drawn from the tank in frequent
short bursts, a condition known as “stacking” is
created. “Stacking” is the result of increased cycling of the
burner and can produce very hot water temperatures at
the hot water outlet. Always remember to check the hot
water coming out of any faucet with your hand before use.
This will reduce the risk of scalding-related injury.
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