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8 Maintenance
Electricity!
Only perform maintenance work on the
pump group if the voltage supply has been
disconnected.
Hot water!
Severe scalds possible.
Do not reach into the hot water when
emptying the pump group.
Ensure that the pump group has cooled
down before carrying out maintenance,
cleaning and repair work.
Install a suitable scald protection device
at every tapping point (for example, safety
shut-off valve or thermostat mixer tap).
More detailed information on scald
protection can be found in DIN 1988, sheet
2, clause 4.2.
Hot surfaces!
Serious burns possible.
Do not touch the pipelines or the
components during operation.
Ensure that the pump group has cooled
down before carrying out maintenance,
cleaning and repair work.
Wear heat-resistant safety gloves if it
is necessary to carry out work on hot
components.
The maintenance of the pump group must
only be carried out by trained personnel who
have been authorized by the manufacturer.
HKFC20-IM-DE-W-UK-04-2022-Rev.1 | Part no. 10084532
8.1 Annual maintenance intervals
1. General visual inspections
• Check the station for leaks and retighten sealing connec-
tions or replace seals, as required.
2. Functional checks
• Check that settings and operating and performance
parameters are set correctly.
• Check flow noise during operation.
• Ask users if there are any noticeable problems.
3. Ball taps
• Check that stop valves and ball taps can move freely.
4. Pump
• Pay attention to the noise of the pump.
5. 3-way mixer
• Check 3-way mixer for function.
6. Motor
• Check the motor for function.
7. Actions following maintenance work
• Check that all screw fittings that were unscrewed have
been retightened and retighten if necessary.
• Remove all tools, materials and other equipment used from
the working area.
• Vent the system.
8.2 Replacement of wear parts
Please note that the pump group contains parts that, for
technical reasons, are subject to wear depending on the
intensity of use, even if the specified care and maintenance
have been observed.
This especially applies to mechanical parts and parts that
could come into contact with water and steam, for example,
hoses, seals, valves, etc.
By their nature, defects as the result of wear do not represent
a fault and therefore are not covered by the warranty or the
guarantee. Nevertheless, these defects and malfunctions
must only be remedied by trained specialist personnel.
Contact your specialist dealer for this.
9
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