Noritz WHiC56 Service Manual page 62

■ When Unused for an Extended Period
If the water heater will not be used for a long period of time, drain the water.
CAUTION
Because the operation in equipment is necessary for complete drainage.
CAUTION
To prevent scalding.
The water within the appliance is still very hot , for a short period after use.
Preparation
Drainage Using the Remote Controller
1
(1) button is "OFF".
(2) Press the
Select
Press the
The "Misc settings" screen appears.
(3) Select
and then press
(4) Select "YES" using the
Press button.
2
Close the water supply
valve.
3
Fully open all hot water
fi xtures/faucets.
4
Open all drain plugs and drain the water out of
the unit.
5
When the water is completely drained, replace all
drain plugs and close the hot water fi xtures/faucets.
6
Close the gas valve and disconnect
the electrical power supplied to the unit.
Do not touch with wet hands.
If you do not use the product for long time, contact your
nearest agency.
Whenever the unit is checked, maintained, or drained, the power
switch must be turned "Off", and it must be allowed to cool down fi rst.
A bucket for draining water.
button inside the cover,
using the buttons.
button.
using the buttons,
button.
buttons,
Hot water
fi xture/faucet
1
Close the gas valve.
2
(1) Turn the power on/off button "On".
(2) Turn and leave open
the hot water fi xtures/
faucets for more than
2 minutes and close.
* An 11 Error Code may appear on
3
Close the water supply valve
and disconnect the electrical
power supplied to the unit.
Do not touch with wet hands.
4
Fully open all hot water
fi xtures/faucets.
5
Open all drain plugs and drain the
water out of the unit.
6
When the water is completely drained,
replace all drain plugs and close the
hot water fi xtures/faucets.
Drain Plugs
Each drain plug mignt not be visible if
insulation is installed around the piping.
- 62 -
Manual Draining
Hot water
fi xture/faucet
* If multiple units are being used,
drain two minutes for each unit.
the remote controller.
This is not a malfunction of the unit.
Do not turn Power ON/OFF Button OFF.
Hot water
fi xture/faucet
Ex. WHiCX56,LWHiCX56