Safety Warnings; Water Temperature Setting - Bosch Compress 3000 Instruction Manual

Operating Instructions
4.2

Safety warnings

Warning: Hydrogen gas can be
produced in a hot water system served
by this water heater that has not been
used for a long period of time (generally
two weeks or more).
HYDROGEN GAS IS EXTREMELY
FLAMMABLE!
To dissipate such gas and to reduce
risk of injury, it is recommended that the
hot water faucet be opened for several
minutes at the kitchen sink before using
any electrical appliance connected to
the hot water system. If hydrogen is
present, there will be an unusual sound
such as air escaping through the pipe
as the water begins to flow. Do not
smoke or use an open flame near the
faucet at the time it is open.
Caution: Turn off power to water
heater if it has been subjected to
overheating, fire, flood or physical
damage.
Caution: Do not turn on water heater
unless it is filled with water or internal
damage may occur.
Caution: To avoid thermal expansion
and the potential that the water heater
may burst, do not turn on water heater if
cold water supply shut-off valve is
closed.
Danger: To avoid the potential for
ignition and fire, do not store or use
gasoline or other flammable vapors and
liquids, such as adhesives or paint
thinner, in the vicinity of this or any
other appliance. If such flammables
must be used, open doors and
windows for ventilation.
Warning: If there's any difficulty in
understanding or following the
Operating Instructions or the Care and
Cleaning section, it is recommended to
have a qualified person or serviceman
performing the work.
Flammable vapours may be drawn by air
i
currents from surrounding areas to the
water heater.
20
4.3

Water temperature setting

The temperature of the water in the water heater can be
regulated by adjusting the temperature setting up or
down using arrow keys on the control panel.
Safety and energy conservation are factors to be con-
sidered when selecting the water temperature setting of
the water heater. The lower the temperature setting, the
greater the savings in energy and operating costs.
To comply with safety regulations, the water tempera-
ture is factory set at 120°F where local codes require.
This is the recommended starting point.
Water temperatures above 125°F can cause severe
burns or death from scalding. Be sure to read and follow
the warnings outlined in this manual and on the label on
the water heater. This label is located on the water
heater near the upper element access panel.
Mixing valves for reducing point-of-use water tempera-
ture by mixing hot and cold water in branch water lines
are available. Contact a licensed plumber or the local
plumbing authority for further information.
The chart below may be used as a guide in determining
the proper water temperature for your home.
Danger: There is a hot water scald
potential if the water temperature is set
too high. Households with small
children, disabled, or elderly persons
may require a 120°F or lower
thermostat setting to prevent contact
with HOT water that may cause
scalding and serious injury.
Time/Temperature Relationship in Scalds
Temperature Time to produce a serious burn
120°F More than 5 minutes
125°F 1-1/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1-1/2 seconds
155°F About 1 second
Table 4
4.3.1 To adjust the temperature
B Press the UP or DOWN arrow on the control panel
key pad.
Then the temperature can be increased or decreased
by pressing the UP or DOWN arrows.
Finally press the ENTER button to confirm.
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