Periodical Maintenance; Filter Inspection And Replacement - Komfovent Domekt Series User Manual

EN

5. PERIODICAL MAINTENANCE

For proper operation of the air handling unit, it should be periodically inspected, the air filters replaced in due time and the in-
terior of the unit cleaned. Some of the maintenance works can be performed by the user and others only by a qualified specialist.
• Before performing any work inside the unit, make sure that the device is stopped and unplugged.
• After stopping the unit, wait a few minutes for the fans to stop rotating and heating devices to
cool down before opening the door.
• Open the door of flat ceiling mounted devices carefully, do not let them swing freely on the
hinges. Also, be careful, as the filters may fall out when the door is opened.
The following table provides recommended regular maintenance intervals for the unit. Actual frequency of maintenance
works depends on operating conditions, amount of dust and impurities in the ventilated air as well as environment in which
the unit is installed. Locations of all the mentioned device components and notes indicated in the "Installation Manual".
Check filters; change, if necessary
Change filters
Clean dust inside the unit
Check the rotor belt for wear and tension (only for DOMEKT R devices)
Replacement of a worn rotor belt
Check the rotor wheel brushes for tightness and wear (only for DOMEKT R devices)
Replace worn rotor wheel brushes
Check the rotor wheel for contamination with dust/other materials (only for DOMEKT R devices)
Clean the rotor wheel
Check the plate heat exchanger for contamination with dust/other materials
(only for DOMEKT CF devices)
Clean the plate heat exchanger
Check if the rotor wheel rotates freely and at the required speed (only for DOMEKT R devices)
Check operation of an air bypass damper of the plate heat exchanger (only for DOMEKT CF units)
Check if dampers open/close fully (if available)
Rotate fans by hand to check for any obstructions, extraneous noise and vibrations
Check fan operation and clean impellers
Check operation of heating/cooling devices
Check automation and safety devices
Check tightness of the doors and state of gaskets
Clean piping and siphon of the condensate drainage (only for DOMEKT CF units)
The inside of the air handling unit can be cleaned with a vacuum cleaner and/or a damp cloth. When cleaning, prevent
water from entering electrical components of the unit. Make sure all surfaces are completely dry before starting the unit.

5.1. Filter inspection and replacement

Check if filters are not damaged, torn or dampened. Filter replacement time depends on environmental contamination,
season of the year, for example, during spring and summer filters may be contaminated with pollen, fluff or insects, therefore
change intervals are shorter. Replace filters if they are visibly dirty even though it is not time yet. When replacing filters earlier,
be sure to perform a clean filter calibration as described in Chapter 3. When filters are replaced upon a filter replacement
message, calibration is not required. Contaminated filters increase pressure loss of the unit, reduce purification efficiency
and increase power consumption.
The pictures below show the location of filters on different models of devices. Because the devices are manufactured
with the right and left access sides, and the images show only one access side, your device may look different from the one
shown. Layout of filters and components presented in the "Installation Manual".
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Task
UAB KOMFOVENT we reserve the right to make changes without prior notice
Frequency Performed by
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6 months User
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6 months User
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