Orcon WTU-1000-EC-E, Инструкция по установке и эксплуатации

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12. Maintenance
• Turn off all switches or disconnect from the mains before carrying out
maintenance.
• Do not run the unit without an air filter to prevent unnecessary contamination of the
WTU.
• Clean the filter after half a year.
• Change the air filter at least once a year. The article numbers of the filters can be
found on page 32.
• Clean the heat exchanger at least once a year.
Optional particulate filter Return
air filter Supply air filter
Supply air fan Return air fan
Step 1 Remove the service cap from the
exchanger. Step 2 Replace the filters.
Step 3 Remove the heat exchanger and clean if necessary with a hoover.
Supply and return air fans
The fans have EC-controlled external rotor motors that can be steplessly and
individually controlled from 0-100%. The speed can be programmed in 2 steps
(normal/reduced) in the weekly schedule. The motor bearings are lubricated and
maintenance-free for their entire service life. It is possible to remove the fans for
cleaning via the service hatches underneath the unit.
Important
• Before carrying out maintenance work, check that the power supply to the WTU
is disconnected.
• All electrical connections must be carried out by a qualified electrician in
accordance with the law and regulations.