Manual Dimplex HPL 6S-TUW2 (page 25 of 52) (English, German, French)

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www.glendimplex.de 452163.66.69 · FD 0010 EN-9

HPL 6S-TUW2 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

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

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 .

ATTENTION!

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.

ATTENTION!

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.

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Dimplex HPL 6S-TUW2 Manual

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