Bedienungsanleitung Dimplex LAK 14ITR (Seite 43 von 100) (Deutsch, Englisch, Französisch)

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www.glendimplex.de 452162.66.09a · FD 0108 EN-17

LAK 3IMR - LAK 14ITR English

9 Cleaning / maintenance

9.1 Maintenance

To protect the cover, avoid leaning anything against the device

or putting objects on the device. External parts can be wiped

clean with a damp cloth and domestic cleaner.

CAUTION!

Never use cleaning agents containing sand, soda, acid or

chloride, as these can damage the surfaces.

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 piping of underfloor heating systems.

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 adhered to.

The instructions of the cleaning agent manufacturer must al-

ways be observed.

10 Faults / troubleshooting

LAiC devices are high-quality products and should work with-

out problems. Should a fault occur, however, it will be indicated

on the heat pump manager display. In this case, consult the

"Faults and troubleshooting" page in the operating instructions

of the heat pump manager. If you cannot correct the fault your-

self, 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 system must only be performed by authorised

and qualified after-sales service technicians!

11 Decommissioning / disposal

Before dismantling the LWPS device, disconnect it from the

power source and close all valves. The heat pump must be dis-

mantled by trained personnel. Observe all environmental re-

quirements regarding the recovery, recycling and disposal of

materials and components in accordance with all applicable

standards.

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