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Dimplex HPL 9S-TURW Manual

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www.glendimplex.de 452168.66.05a · FD 0104 EN-9
HPL 9S-TU(R)W - HPL 18S-TU(R)W English
9 Cleaning / maintenance
9.1 Maintenance
To protect the paintwork, avoid leaning anything against the
device or putting objects on the device. External heat pump
parts can be wiped with a damp cloth and commercially availa-
ble domestic cleaner.
NOTE
º
ºººº
Never use cleaning agents containing sand, soda, acid or
chloride, as these can damage the surfaces.
To prevent faults due to sediment in the heat exchanger of the
heat pump, ensure that the heat exchanger in the heating sys-
tem cannot be contaminated. Should operating malfunctions
due to contamination still occur, however, the system should
be cleaned as described below.
9.2 Cleaning the heating system
The ingress of oxygen into the heating water circuit may result
in the formation of oxidation products (rust), particularly if steel
components are used. These enter the heating system via the
valves, the circulating pumps and/or plastic pipes. A diffusion-
resistant installation is therefore essential, especially with re-
gard to the complete piping.
NOTE
º
ºººº
We recommend the installation of a suitable corrosion
protection system to prevent the formation of deposits (e.g.
rust) in the condenser of the heat pump. We recommend
equipping diffusion-open heating systems with an
electrophysical anti-corrosion system (e.g. ELYSATOR
system).
Residue from lubricants and sealants may also contaminate the
heating water.
In the event of severe contamination leading to a reduction in
the performance of the liquefier in the heat pump, the system
must be cleaned by a heating technician.
Based on current information, we recommend using a 5%
phosphoric acid solution for cleaning purposes. However, if
cleaning needs to be performed more frequently, a 5 % formic
acid solution should be used.
In both cases, the cleaning fluid should be at room tempera-
ture. We recommend flushing the heat exchanger in the direc-
tion opposite to the normal flow direction.
To prevent acidic cleaning agents from entering the heating
system circuit, we recommend connecting the flushing device
directly to the flow and return of the liquefier of the heat pump.
It is then important that the system be thoroughly flushed using
appropriate neutralising agents to prevent any damage from
being caused by cleaning agent residue remaining in the sys-
tem.
Acids must be used with care and the regulations of the em-
ployers liability insurance associations must be adhered to.
The instructions of the cleaning agent manufacturer must al-
ways be observed.
9.3 Cleaning the air system
The evaporator, fan and condensate drain should be cleaned of
contamination (leaves, twigs, etc.) before each new heating pe-
riod. Do this by opening the heat pump as described in
Chapter 7.1.
CAUTION!
!!
Before opening the device, ensure that all circuits are
disconnected from the power supply!
To prevent the evaporator and the condensate tray from being
damaged, do not use hard or sharp objects when cleaning.
Under extreme weather conditions (e.g. snow drifts), ice may
form on the air intake and air outlet grids. If this happens, the ice
must be removed from the vicinity of the air intake and air outlet
grids to ensure that the minimum air flow is maintained.
To ensure proper drainage from the condensate tray, it must be
regularly inspected and cleaned, if necessary.
10 Faults / troubleshooting
This heat pump is a quality product and is designed for trouble-
free operation. Should a fault occur, however, it will be indi-
cated on the heat pump manager display. In this case, consult
the "Faults and troubleshooting" page in the operating instruc-
tions of the heat pump manager. If you cannot correct the fault
yourself, please contact your after-sales service technician.
CAUTION!
!
!
Before opening the device, ensure that all circuits are
disconnected from the power supply!
After disconnecting the power supply, always wait for at least 5
minutes to allow stored electric charges to dissipate.
CAUTION!
!
!
Work on the heat pump must only be performed by
authorised and qualified after-sales service technicians!
11 Decommissioning / disposal
Before removing the heat pump, disconnect it from the power
source and close all valves. The heat pump must be dismantled
by trained personnel. Observe all environmental requirements
regarding the recovery, recycling and disposal of materials and
components in accordance with all applicable standards. Par-
ticular attention should be paid to the proper disposal of refrig-
erants and refrigerant oils.
… 33 …


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