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UAB KOMFOVENT we reserve the right to make changes without prior notice
VERSO PRO2_guide_20-07
EN
7. PERIODIC MAINTENANCE
The air handling unit must be serviced by a qualified technician or authorized service representative.
•
Before starting any tasks, make sure that the unit is unplugged from the mains.
•
Use caution when performing works near internal or external heaters as their surfaces may be
hot.
•
Remove all foreign objects and tools from the unit.
•
Use appropriate safety equipment (gloves, goggles).
•
If you have washed or cleaned any of the components, wait for them to dry completely before
starting the unit.
The following table provides recommended regular maintenance intervals for the unit. Actual frequency of maintenance
procedures depends on operating conditions, amount of dust and impurities in the supplied air as well as environment in
which the unit is installed. Maintenance intervals may be shorter, following the national hygiene norms and specific require-
ments for ventilation of the premises.
Task
Frequency
Commissioning
3 months
6 months
12 months
7.1. Housing
Mechanical damage
X
X
Air-tightness and gaskets of the sections
X
X
Horizontality of the sections
X
X
Air-tightness and gaskets of doors and locks
X
X
Air damper operation
X
X
Condensate drainage
X
X
Cleaning of drip trays
X
7.2. Filters
Visual inspection of filters
X
X
Inspection of differential pressure sensors
X
X
Filter replacement
X
7.3. Fans
Extraneous noise and vibrations
X
X
Fan operation, speed adjustment
X
X
Cleaning of the impeller
X
Motor overheat protection
X
X
7.4. Rotary heat exchanger
Belt inspection
X
X
Motor operation
X
X
Drum brushes and seals
X
Free rotation and bearings of the drum
X
Drum cleaning
X
7.5. Counter-flow heat exchanger
Air bypass valve operation
X
X
Tightness and gaskets of the heat exchanger
X
7.6. Liquid coupled heat exchanger
Fluid leakage
X
X
Operation of piping components
X
X
Cleaning of the heat exchanger
X
