14
Installation & Owner‘s Manual
8.2 Recommended regular maintenance table
Checking
Item
Checking
content
Checking frequency
Action
1
air filter
(inlet/outlet)
every month
Clean the filter
2
anode rod
every half year
R
eplace if required
3
inner tank
every half year
Clean the tank
4
5
e-heater
every half year
Clean e-heater
Operate the
hander of PTR
valve to ensure
that waterways
are clear.
PTR valve
If water doesn't flow freely when operating the
handle, replace PTR valve with a new one
every year
Table
.
8-1
8. MAINTENANCE
8.1 Maintenance
1) Check the connection between power supply plug and socket
and ground wiring regularly;
2) In some cold areas (below 0
℃
), if the system will be stopped for
a long time, all the water should be released in case of freezing
of inner tank and damage of E-Heater.
3)
It is recommended to clean the inner tank and E-Heater
regularly to keep an efficient performance.
①
Cut off the power.
②
Close the cold water inlet valve, open the hot water tap.
③
Use a flexible pipe to connect the drain port to a suitable sewage
draining exit. (The min. heat resistance of the drain pipe is not
less than 93
℃
, if the drain pipe can not meet the requirement,
please open the cold water inlet valve, open the hot water tap,
until there is no hot water flow out.)
④
Open the drain port of the water heater; drain out all the water in
the inner tank. If it is needed, use water to wash the inner tank
several times to clear the deposits.
⑤
Close the drain port, re-fill the inner tank with water, and
re-power on.
4) Check the anode every half year and change if required. For
more details, please contact the supplier or the service.
How to Change the anode
●
Turn off the power, and turn off the water inlet valve.
●
Open hot water tap, and decrease the pressure of the inner
container.
●
Open the drain port, and release about 20L water.
●
Unscrew anode according to instruction.
● Replace with a new one, and make sure effective sealed.
●
Open cold water valve until hot water flows out, and turn off the
hot water tap.
● Restart and can be used normally.
NOTE
How to Take Off The Air Filter
，
remove screw from top cover.
Take the top cover,
and slide out the filter
Rotate top cover
counter clockwise
When installing the top cover please refer to the
direction of arrow, after assembling it should be line
up.
NOTE
Summary of Contents for 190RDN3-E
Page 20: ...MDV11IU 055BW DZ 2020001A9998...
