Maintenance and cleaning
6 720 648 071
(2012/03)
12
7
Maintenance and cleaning
•
If not agreed to otherwise in writing, the DHW tank
may be filled only with potable water.
•
It is recommended that a qualified installer inspect
and clean the DHW tank at regular intervals of not
more than 2 years.
•
In the event of poor water quality (hard to very hard
water) in combination with high temperatures,
inspection and cleaning should be carried out at
shorter intervals.
7.1
Checking the magnesium anode
B
Close the cold water inlet (EK); open the tank's drain.
To allow air into the system, open a fixture at a higher
elevation than the drain valve.
B
Remove the plastic plugs [1] from the magnesium
anode [2] and inspection port.
B
Unscrew the magnesium anode [2].
Fig. 10
Installing / removing the magnesium anode
1
Plug (24 mm socket)
2
Magnesium anode (27 mm wrench required)
3
Inspection port (plug, 24 mm socket)
B
Check the diameter of the magnesium anode.
B
If the diameter is reduced to about 1/2" (13 mm), the
anode rod must be replaced.
DANGER:
Risk of fatal injury from electric
shock.
B
Only trained and certified electricians are
permitted to carry out electrical work.
B
Isolate the DHW tank electrically by using
the emergency shut-off switch or by
disengaging the heating system circuit
breaker.
B
Secure the DHW tank against
unintentional reconnection.
B
Please observe all installation
instructions.
WARNING:
Risk of equipment damage from
improper maintenance!
Lack of maintenance or improper
maintenance can result in damage or
destruction of the DHW tank and voiding the
warranty.
B
Arrange for regular, thorough, and
professional maintenance of the DHW
tank.
B
Protect electrical components and
control units from water and moisture.
Use only original spare parts from the
manufacturer or parts approved by the
manufacturer.
Damage caused by spare parts not supplied
by the manufacturer is excluded from our
warranty.
The anode rod must be inspected annually
and replaced if compromised. Failure to
operate the tank without a properly
maintained anode rod may void the
warranty.
DANGER:
Risk of fatal injury from electric
shock.
B
Before working on the system,
disconnect the electrical power.
Never bring the magnesium anode surface in
contact with oil or grease. Ensure
cleanliness.
6 720 648 100-10.1ITL
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2
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