Classification Of Air Filters; Installing Air Filters - Airflow Duplexvent Flexi DV1600 Installation, Use And Maintenance Manual

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Connect a pipe or hose (not included; a standard washing machine hose is recommended) to the condensate outlet and shape it
into a siphon trap with dimensions as shown in the picture. Fix the siphon trap shape and connect it to the sewer line.
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Check the entire length of the pipe including the parts inside the unit for free flow and the angle for drainage.
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Prime the condensate drain siphon trap.

5.7 Classification of air filters

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If the unit is supplied with filters of various filtration grades (F7 and F5), then the F7 grade filter is an outdoor air filter and the F5
grade filter is an extract air filter.
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The outdoor air filter is installed in chamber e1 (ODA) and the extract air filter in chamber i1 (ETA).

5.8 Installing air filters

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The unit is supplied with separately packaged filter cassettes. Unpack the cassettes and check their condition. Should any
damage or contamination be detected, replace them with new ones. Spare filter cassettes are to be ordered from the
manufacturer. The manufacturer´s address and the spare cassette part number are shown on the identification plate of the unit.
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Insert undamaged clean filters into the guide rails and secure them following the instructions in the pictures below:
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Especially make sure that the arrow showing the direction of air flow through the filter cassette can be seen from the side of the
operator (the arrow is by the unit´s door) and that it is always pointing toward the heat recovery exchanger!
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The unit is supplied with filter cassette labels. Attach the relevant identification labels near both filters.
ATTENTION: Use original filter cassettes only! If different cassettes are used, the manufacturer cannot guarantee their proper
function!
 Record the date of installing filters appropriately in e.g. the operational logbook.
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