Regular Maintenance - Noritz N-063 Owner's Manual And Installation Manual

If the water heater will not be used for a long period of time
Drain the water as follows:
Caution
High Temperature
Provide a pan or bucket for drainage to prevent water damage.
1
Turn on the operation button, and check that the light comes on.
2
Close the gas valve.
3
Open a hot water fixture, and keep it open for approximately 1 minute until the number 11
is flashing on the remote display.
* It is possible that another number may displayed on the remote controller, but as long as
the number is flashing, you may continue.
4
Close the water supply valve.
5
Keep the operation switch on and disconnect the power.
6
Fully open all hot water fixtures.
7
Remove inlet and outlet drain plugs. (0.1 to 0.2 gal. will drain
out of the unit.)
8
When the water is completely drained, replace all drain plugs
and close the hot water fixtures.
This method cannot prevent the water supply, hot water piping and water supply valve from
freezing.
Be sure to protect them with insulation or an electric heater.
(If you are still worried the unit will freeze, consult the nearest Noritz agent.)
To turn the unit back on
1. Check that all drain plugs are inserted.
2. Check that all hot water fixtures are closed.
3. Follow the procedure on p.11 "Initial operation".
18
To avoid burns, wait until the equipment cools down before
draining the water. The appliance remains hot after it is
turned off.
Do not touch with wet hands.
Fixture
7
Drain plug

Regular Maintenance

Inspection (Once a month)
Caution
To avoid burns, wait until the equipment cools down
before draining the water. The appliance remains hot
after it is turned off.
High Temperature
For laundry, newspaper, timber,
Check
oil, spray cans and other
combustible materials. ( p.5)
Check For abnormal sounds
during operation.
For abnormalities in
Check
external appearance,
change in color or flaws.
For water leaks from the
Check
equipment and piping.
Maintenance (once a month)
Equipment
Wipe the outside surface with a wet cloth, then dry the surface. Use a neutral detergent to clean
any stains.
Remote controller
Wipe the surface with a wet cloth.
• Do not use benzene, oil or fatty detergent to clean the remote controller.
Deformation may occur.
• The remote controller is waterproof, but it should be kept dry as much as possible.
Check For dust and soot in
the exhaust vent or
exhaust vent terminal.
Check
For dust in the air inlet.
19