17
In addition, regular maintenace is required for:
•
VDI 6022
- Hygienic standards for ventilation and air-conditioning
•
VDI 3801
- Exploitation of air conditioning systems
•
VDMA 24186 - Performance program for maintenance of air conditioning and other
technical equipment in buildings, air handling units and equipment
•
AMEV
- Recommendation - Maintenance 85
We refer to the above regulations in the checklists where recommendations are done for the
maintenance intervals! For maintenance and repair of HVAC-systems according to VDI 6022 an
education in accordance with category B (hygienic education) is required.
Maintenance intervals of the unit
The application period for the following items cannot be prescribed. The regular maintenance and
cleaning of the device depends only on the degree of soiling. This depends on the degree of dust in
the external or ambient air.
9.2 Engine
The engine is maintenance free. Occassionally it should be dried and made dust free.
9.3 Heat exchanger
Clean the heat exchanger by blowing compressed air onto it. Take care of oil-containing dust with
an oil-soluble detergent. Use a steam cleaner to remove sticky surface.
Note!
Use low pressure as well as an intermediate distance to the heat exchanger of at least 300mm.
9.4 Air filter
In case of contaminated filter with a resistance of 150Pa it can be removed from the filter section.
Ordinary dust can be removed by knocking it off. Do not use solvents as gasoline, fuel oil, etc.
Always make sure of an adequate substitute. When installing a filter from a different manufacturer
take the suppliers rules into account.
Note!
When replacing the filter it must have a P3-class. Dirty filters can lead to an increased health
risk.
10 Decommissioning - Disassembly
10.1 Decommissioning
•
Control louvres with recirculation mode - Shutdown air valve control to prevent hypothermia
and danger of frostbite.
•
Close all valves.
•
Shut circulation pumps off.
•
Empty luminaires with danger of frost. Blow the heat exchanger and piping connections empty
with compressed air. Run the fan until all surfaces are dry.
•
Drain the float switch and outlet pump.
•
Turn off the isolator switch and shut down the installation.
EN
Summary of Contents for 0662551
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