Maintenance - Dimplex Dhw 301P Montage- Und Gebrauchsanweisungen

Maintenance

11. Maintenance
11.1. General
To ensure fault free functioning and to extend the ser-
vice life of the device, we recommend having annual
inspection and maintenance work carried out by an
authorised specialist.
NOTE
Any work on the domestic hot water heat pump may
only be carried out by qualified personnel.
NOTE
The applicable local safety regulations must be adhered
to. Observe country-specific building regulations.
NOTE
Any work on the refrigeration circuit may only be car-
ried out by qualified personnel with a refrigeration
certificate in at least category 1.
NOTE
Discharging refrigerant into the surrounding air is pro-
hibited.
NOTE
The refrigerant must be extracted before any work on
the refrigeration circuit. Avoid ignition sources in the
immediate vicinity during extraction. Do not use
cleaning agents containing oil.
NOTE
De-energize the domestic hot water heat pump before
opening.
NOTE
Before working on the heat pump, check that the fan
is stopped.
NOTE
The function of the electric additional heating element
must be checked at regular intervals and any limescale
deposits must be removed from the heating elements.
When draining the cylinder, ensure that there is suffi-
cient rear ventilation to avoid any negative pressure in
the cylinder.
The following materials and products may not be
used:
Brushes with steel bristles and steel sponges,

Scouring powder.

Any product based on sodium or potassium hy-

pochlorite solution or other chlorine derivatives.
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During maintenance work or when decommissioning
the domestic hot water heat pump, observe the envi-
ronmental protection regulations with regard to col-
lecting, recycling and disposing of operating materials
and components.
NOTE
The R290 refrigerant in the heat pump circuit poses
no risk to the environment, but is flammable.
NOTE
The R290 refrigerant is odourless and heavier than air.
NOTE
The pipes of the refrigeration circuit must not be dam-
aged.
NOTE
Do not work with a naked flame or other ignition
sources inside the device.
NOTE
In the event of a refrigerant leak, disconnect the heat
pump from the power supply, ventilate the room thor-
oughly and contact after-sales service.
When carrying out work on the refrigeration circuit:
Secure the work area.

Inform the affected persons of the risks associated

with the work being carried out.
Ensure that the risk of ignition is low.

Ensure that there are no ignition sources or naked

flames in an area of 3 m around the heat pump.
Avoid working in enclosed, narrow spaces. The

work area must be adequately ventilated.
Check the work area before and during the work

with a suitable leak detector.
Keep a dry powder or CO

the work area.
FD 0303
English
extinguisher close to
2
EN-25