Maintenance; Stopping - Pfannenberg DTD Série Notice De Montage Et D'utilisation

11.2 Maintenance

12 Stopping

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Proceed as follows:
1) Stop cooling unit.
2) De-energize cooling unit.
3) Remove cooling unit.
4) Place cooling unit onto suitable support. Especially observe units where the condensa-
te drainage connection protrude out of the bottom.
5) Clean condenser.
CAUTION:
Protect the electric components against leakage.
CAUTION: Damage to louvres
Do not use any pointed or sharp-edged objects. When cleaning, make sure that you do not
press against the louvres or damage them in any other way.
• If the cooling units are provided with a front filter clean the filter mat regularly. The
cleaning intervals or the intervals for replacement of the filter mat mainly depend upon
ambient conditions (air pollution).
• You can rinse the filter mat using water heated to 40 °C and commercially available
mild detergent. It is possible to remove any dry dirt by knocking the mat slightly, vacu-
um cleaning it or blowing it out.
CAUTION: Damage to the filter mat.
Do not wring the filter mat. Avoid too solid a water jet.
• If the filter mat is oily or greasy, replace.
After an operating time of approx. two years an expert must check the cooling system for
tightness.
After each maintenance check the condensate drainage for proper function.
If the cooling unit is not in use for a longer period, disconnect it. Ensure that unauthorised
persons cannot start the cooling unit.
If the cooling unit is to be scrapped, disposal must be carried out by a competent person
and in accordance with the current regulations pertaining to environmental protection. It is
essential that the refrigerant in the cooling system is properly removed by suction. Refrig-
erant emissions must be prevented.
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