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7.1.2 Commissioning of Hot Water System
•
Fill hot water circuit via the external connection.
•
Vent the hot water circuit
(open hot water taps at the topmost points of use until no more air escapes).
•
Perform a leak test of the entire hot water circuit.
•
Connect the unit to the power supply (insert plug into wall outlet).
•
Turn on the heat pump switch (Fig. 3).
•
The desired hot water temperature is infinitely adjustable (up to 55 °C) by means of the temperature
dial (Fig. 3).
•
At air intake temperatures below 8°C or if there is an increased demand for hot water, the electrical im-
mersion heater is activated automatically or manually (Fig. 3).
•
Water heating by means of a supplementary heat source is possible by switching on the heat ex-
changer charging pump (Fig. 3) (provided the required electrical connection has been established).
8.
Maintenance / Service
Caution!
Always disconnect the mains plug from the power supply prior to opening the HPWH;
be careful as fan may still be rotating!
General
No maintenance activities need to be performed on the refrigeration circuit 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 operating controls.
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.
8.1
Water Circuit / Condensate Drain
The service of the water circuit is limited to the inspection of filters that may have been field-installed, and the
performance of leak tests. Contaminated water filters must be cleaned and replaced, if necessary. The seal-
ing lip valve provided at the condensate hose end must be periodically checked for contamination and be
cleaned, if necessary.
8.2 Air Supply
Maintenance activities are limited to cleaning the evaporator (using a vacuum cleaner) on a regular basis, or
as required.
Caution! There is a hazard of injury from sharp-edged fins. Fins must not be distorted or damaged!
If air filters are used, they must regularly be checked for contamination and be cleaned or replaced, if neces-
sary.
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