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Dimplex LA 40TU Manual

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EN-8 452163.66.10 · FD 9506 www.dimplex.de
English
LA 17TU - LA 40TU
8.2 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. They enter the heating system via the val-
ves, the circulating pumps and/or plastic pipes. It is therefore es-
sential - in particular with respect to the entire pipework - that
only diffusion-resistant materials are used.
NOTE
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 case 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% phos-
phoric acid solution for cleaning purposes. However, if cleaning
needs to be performed more frequently, a 5% formic acid solu-
tion should be used.
In either case, the cleaning fluid should be at room temperature.
We recommend flushing the heat exchanger in the direction op-
posite to the normal flow direction.
To prevent acidic cleaning agents from entering the heating sys-
tem circuit, we recommend connecting the flushing device di-
rectly 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 system.
Acids must be used with care and the regulations of the employ-
ers’ liability insurance associations must be adhered to.
The manufacturer's instructions regarding cleaning agent must
be complied with at all times.
8.3 Cleaning the air system
The evaporator, ventilator and condensate outflow should be
cleaned of contamination (leaves, twigs, etc.) before each new
heating period.
ATTENTION!
Before opening the device, ensure that all circuits are powered down.
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 in 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.
All panelling can be removed to allow accessing the inside of the
device. Note that the upper covers can only be removed after the
lower covers have been taken off.
The two sash fasteners must be opened for this purpose. The
cover must then be slightly tilted forward and lifted off toward the
top.
The lateral and rear panels are hooked into the cover panel. Loo-
sen the two screws for dismantling and unhook the panels by pul-
ling them back.
The cover panels on the ventilator side can be dismantled after
the two upper lateral side panels have been removed. Loosen
the screws for this purpose, slide the panel slightly to the right or
left and then lift it off towards the front.
Opening the lower covers Closing the lower covers
Opening the lateral and
rear cover panels on top
Closing the lateral and
rear cover panels on top
Opening the
upper front covers
Closing the
upper front covers
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