Biddle DF Spezifikationen PDF herunterladen (Seite 30)

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4. . Maintenance

4.1 Cleaning the unit

You may clean the exterior of the unit with a damp cloth and a

domestic cleansing agent. Do not use any solvents.

Caution:

c Make sure no water runs into the unit.

4.2 Scheduled maintenance

Biddle recommends that the following inspection and mainte-

nance work is performed by an installer or other technical

expert every year.

• Check that the heat exchanger and the electrical heating

element are clean. Settled dust may cause unpleasant

smells.

• Gently remove dust with a vacuum cleaner.

• Check whether fans are working properly.

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Biddle DF Spezifikationen Seite 30