20
21
2VV.
Creating innovative solutions for you and your business since 1995.
ver.1 31-05-21
8.2 PERIODICAL CLEANING OF THE VENTILATION UNIT
We suggest checking and cleaning the unit every six months, however these intervals must be accommodated to specific
operating conditions.
We suggest thorough cleaning of the unit once a year. If the unit is not in use for a long time, we suggest its activation every
six months for about an hour.
ATTENTION
Service of internal components and cleaning of the unit must be carried out by professional service shop only!
Operation of the unit without the filter is not allowed! Otherwise the heat exchanger can be damaged!!!
Clean the ventilation unit, using a vacuum-cleaner, small brush, cloth and soapy water especially recuperator. Do not
clean the unit with following: Sharp objects, aggressive chemicals, solvents, abrasive cleaning products, pressured water,
pressured air or steam.
9. TROUBLESHOOTING
Description
Unit's behav
-
iour
Likely problem
Solution
4 – Supply fan error
Unit is not
working
Overheated fan or defect on
thermal contact of inlet fan
Determine the cause of the overheating (defective bear
-
ing, short-circuit...) or replace the engine.
5 – Exhaust fan error
Unit is not
working
Overheated fan or defect on
thermal contact of inlet fan
Determine the cause of the overheating (defective bear
-
ing, short-circuit...) or replace the engine
ATTENTION!
Before and during maintenance and repairs, the unit must be disconnected from the power supply, which must be locked,
and the service switch in 0 position (off).
Do not perform repairs if you aren’t sure or don’t know the exact procedure; contact a specialised service!
Malfunctions are usually signalled with a message on the display. See table below.
TECHNICAL DATA