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CAUTION!
11
According to current knowledge, we recommend
cleaning with a 5% phosphoric acid solution or, in
the case that cleaning needs to be performed more
frequently, with a 5% formic acid solution.
In either case, the cleaning fluid should be at room
temperature. It is recommended that the heat
exchanger be cleaned in the direction opposite to
the normal flow direction.
To prevent acidic cleaning agents from entering
the circuit of the heating installation we recom-
mend that the flushing device be fitted directly to
the supply and return lines of the condenser. To
prevent any damage caused by cleaning agent
residues that may be present in the system it is
important that the system be thoroughly flushed
using appropriate neutralising agents.
The acids must be used with great care, all rele-
vant regulations of the employers' liability
insurance associations must be adhered to.
If in doubt, contact the manufacturer of the chemicals!
Caution - Heating Technicians !
Depending on the filling water quality and
quantity, in particular in the case of mixed
installations and plastic pipes, mineral deposits
(rust sludge, lime) may form, impairing the pro-
per functioning of the heating installation. A
reason for this is the water hardness and
oxygen dissolved in the filling waters as well
as additional oxygen from the air, which may
penetrate via valves, fittings and plastic pipes
(oxygen diffusion). As a preventive measure it
is recommended that a physical water conditio-
ner such as ELYSATOR be used.
9.3 Cleaning of Heat Source Side
The supplied strainer is to be install-
ed in the heat source inlet of the heat pump in
order to protect the evaporator against conta-
mination.
The filter screen of the strainer should be cleaned
one day after commissioning, thereafter every week.
If no more contamination can be noticed any more,
the strainer filter can be removed in order to reduce
pressure losses.
MALFUNCTIONS/
TROUBLESHOOTING
This heat pump is a quality product and is designed
for trouble-free operation. In the event that a
malfunction occurs nevertheless, you will be able to
correct the problem yourself in most of the cases.
Simply consult the Malfunctions and Trouble-
shooting table contained in the operating manual of
the heat pump controller.
Additional malfunctions can be interrogated at the
heat pump controller.
If you cannot correct the malfunction yourself, please
contact the after-sales service agent in charge (see
Warranty Certificate).
All work on the heat pump may only
be performed by an authorised and qualified
after-sales service.
DECOMMISSIONING
11.1 Shutdown in Summer
Shutting down the heating system in summer is
effected by switching the heat pump controller to the
"Summer" operating mode.
11.2 End-of-Life Decommissioning/
Disposal
Before removing the heat pump, disconnect the
machine from the power source and close all valves.
Environment-relevant requirements regarding the
recovery, recycling and disposal of service fuels and
components in accordance with all relevant
standards must be adhered to. Particular attention
must hereby be paid to the proper disposal of
refrigerants and refrigeration oils.
CAUTION!
CAUTION!
CARE/CLEANING
MALFUNCTIONS/TROUBLESHOOTING
DECOMMISSIONING