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Maintenance
8
Maintenance
Generally, we recommend having the DHW tank
checked and cleaned by a qualified contractor at
least every two years. Please inform the user
accordingly.
Shorter cleaning intervals should be chosen under
unfavorable operating conditions, such as hard or
very hard water and/or high operating temperatures.
TANK DAMAGE
due to unsatisfactory cleaning and
maintenance.
CAUTION!
z Carry out cleaning and maintenance at
least every two years.
z Remedy all faults immediately to
prevent possible damage.
8.1
Preparing the DHW tank for maintenance
z Disconnect your heating system from the electricity
supply.
z Drain the DHW tank. Shut off so the cold water feed
and open the drain EL. Open the air vent valve or the
highest tap to vent the system.
z Remove the top cover (Fig. 15, Item 2). Remove the
four screws on the side.
z Remove the thermal insulating disk (Fig. 15, Item 1)
from the front of the access cover.
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logalux ST400/3, 500/3, 750/3 and 1000/3 "US" • Issue 07/2005
2
1
Fig. 15 Thermal insulation – top access port
Item 1: Thermal insulation disk
Item 2: Tank cover
8
15
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