Noritz NRC111-SV Owner's Manual page 19

If the water heater will not be used for a long period of time, drain the water.
Drain the water as follows:
CAUTION
Drain water into a bucket to prevent water damage.
Drainage Using the Remote Controller
(1) Turn the power on/off
1
button "off".
(2) Press the flow meter alarm set
button for about two seconds
until the alarm sounds.
The maximum hot water
temperature will flash.
(3) Press the flow meter alarm
set button again.
(4) Press the setting button
marked " ". The display
will change from "oF" to "on"
after the button is pushed.
Close the water supply
2
valve.
Fully open all hot water fixtures.
3
Open all drain plugs and drain the water out of
4
the unit.
5
When the water is completely drained, replace
all drain plugs and close the hot water fixtures.
Close the gas valve and disconnect
6
the electrical power supplied to the unit.
Do not touch with wet hands.
To avoid burns, wait until the equipment cools down
before draining the water. The appliance will remain
hot after it is turned off.
High Temperature
(Ex. 120°F)
Fixture
Manual Draining
Close the gas valve.
1
(1) Turn the power on/off button "On".
2
(2) Turn and leave open
the hot water fixtures
for more than 2 minutes
and close.
* If multiple units are being used,
drain two minutes for each unit.
* An 11 Error Code may appear on
the remote controller.
This is not a malfunction of the unit.
Do not turn Power ON/OFF Button OFF.
Close the water supply
3
valve and disconnect
the electrical power
supplied to the unit.
Do not touch with wet hands.
Fully open all
4
hot water fixtures.
Open all drain plugs and drain the
5
water out of the unit.
When the water is completely drained,
6
replace all drain plugs and close the
hot water fixtures.
Drain Plugs
Fixture
Fixture
19