Dux 17ENB5L, Руководство пользователя

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Owner’s Guide
17
Frost Protection
* Outside temperature including wind chill factor
less than -15°C.
Freezing cannot be prevented when the power plug
is unplugged. Do not remove the power plug from
the wall outlet.
Freezing will be prevented regardless of whether
the
Operation
button is ON or OFF.
The freeze prevention heaters will not prevent
the plumbing external to the Water Heater from
freezing. Protect this plumbing with insulation, heat
tape or electric heaters, solenoids, or pipe covers.
Freezing is prevented within the
device automatically by the freeze
prevention heater.
This method can protect not only the Water Heater,
but also the water supply, water piping and mixing
valves.
1. Turn off the
Operation
button.
2. Close the gas supply valve.
3. Open a hot water fixture, and keep a small
stream of hot water running. (400 mL/minute or
about 4 mm thick.)
• If there is a mixing
valve, set it to the
highest level.
4. The flow may become unstable from time to
time. Check the flow 30 minutes later.
• In general, it is not advisable to run water
through the Water Heater when it is OFF (See
page 5), but in this case freeze prevention is
more important.
Take the measures below for
extremely cold temperatures*.
If water will not flow due to freeze
1. Close the gas and water valves.
2. Turn off the
Operation
button.
3. Open the water supply valve occasionally to
check whether water is running.
4. When the water is flowing again, check for
water leaks from the Water Heater and piping
before using.
NOTE If the Water Heater or the piping
is frozen, do not use the Water
Heater or it may get damaged.
4 mm thick
Hot water fixture
• Damage can occur from frozen water within
the appliance and pipes even in warm
environments. Be sure to read below for
appropriate measures.
• Repairs for damage caused by freezing are not
covered by the warranty.
NOTICE