Owner's Manual

3
OTHER PRECAUTIONS
1. This unit is only for indoor use. Avoid its exposure to rain or moisture.
2. Do not use for drinking or cooking until the water supply has been approved by local
authorities.
3. Hot water (or cold water) left in heat exchanger or piping must not be used for cooking or
drinking.
4. When using a large amount of hot water the temperature may change, even though the
temperature setting has not been changed. Special caution must be taken if two faucets are
open at the same time.
5. If the unit appears to be operating abnormally or in an emergency, turn off the unit and call
an authorized service person.
6. To avoid the use of hard water is recommended. In regions where hard water is the only
source, take advantage of a water softener or periodical maintenance of cleaning the
accumulated carbonate calcium is recommended..
7. Do not use a damaged unit. If repairs are needed, contact your dealer.
8. Keep the area around the unit, the fuel tank and the exhaust pipe clean and free of
flammable materials.
9. If you plan to be away from your home for a long period of time, shut-off the fuel valve from
the fuel tank. Press “POWER SWITCH” to “OFF” position and disconnect the power supply
cord.
10. If the unit is not used for a long period of time, the fuel tank may contain water cause by
condensation. Be sure to check all filters and strainers for this condition, clean or replace
filter elements before using the unit.
11. The use of the water heater with the temperature selector knob at “MED” or “LOW” may
cause to propagate bacteria in water. In order avoid this, turn the temperature selector knob
to “HIGH” once a week to heat the water heater and water at high temperature for
approximately one hour.
12. Before changing temperature setting, make sure that the water heater is not being used by
any of your family at any place in the house. All family members should be aware of this
Caution.