When Unused For An Extended Period - andrews WHC56 Owner's Manual Manual

When Unused for an Extended Period-1

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 RC-7508M
Follow the procedure on Pgs. 18 - 19,
1
and set "Drain the heater" to "yes".
Close the water
2
supply valve.
Fully open all hot
3
water fixtures.
Open all cleanout plugs by turning
4
them to the left.
(Position of the cleanout plugs
* Draining starts.
When the water is completely drained,
5
replace all drain plugs and close the hot
water fixtures.
Close the gas valve and
6
disconnect the electrical
power supplied to the unit.
Do not touch with wet hand's.
If you do not use the product for long time, contact your
nearest agency of ANDREWS WATER HEATERS.
Whenever the unit is checked, maintained, or drained, the power
switch must be turned "Off", and it must be allowed to cool down first.
A bucket for draining water.
Here
Displayed
for 10
minutes.
Fixture
P22)
Manual draining
Close the gas
1
valve.
1. Turn the power switch "On".
2
(If there is no remote controller, make
sure that the power is plugged in.)
2. Open the hot water tap fully,
leave it in that position for
at least 2 minutes, and then
turn off the tap.
* For conjunct setting: Allow at least 2
minutes per unit
* Error display <11> may appear on the
remote controller, but this is not an error.
Do not turn the power switch "Off".
Close the water supply valve
3
and disconnect the electrical
power supplied to the unit.
Do not touch with wet hand's.
Fully open all hot
4
water fixtures.
Open all cleanout plugs by turning
5
them to the left.
(Position of the cleanout plugs
* Draining starts.
6
When the water is completely drained,
replace all drain plugs and close the hot
water fixtures.
Fixture
Fixture Fixture
P22)
21
(Continued)