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7.
Maintenance / Service
CAUTION!
Prior to opening the HPWH, the unit must be disconnected from the power supply; be careful of fan that
may still be rotating!
General
The heat pump water heater is nearly maintenance-free. A few days following the commissioning procedure, a
visual check for possible leaks in the water system or clogging of the condensate drain is to be performed once.
No maintenance activities need to be performed on the refrigeration cycle of the heat pump.
For cleaning the HPWH, simply use a damp cloth and some soapy water. Caution! Do not allow water to come in
contact with the operating controls. Prior to commencing the cleaning procedure, withdraw the mains plug or
disconnect the unit from the power supply.
7.1
Water Circuit / Condensate Drain
The inspection of the water circuit is limited to any filters that may have been field-installed, and the performance
of leak tests. The condensate hose must not be kinked (condensate must be able to drain freely). Dirty water
filters have to be cleaned and replaced, if necessary. The sealing lip valve provided at the condensate hose end
must be periodically checked and cleaned, if necessary.
7.2
Air Circuit
The maintenance activities on the unit are limited to the cleaning of the evaporator, whenever required.
Caution!
There is a hazard of injury from sharp-edged fins. Fins must not be distorted or damaged!
The air filters used in exhaust air systems must regularly be checked for contamination and be cleaned or
replaced, if necessary.
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