Airflow Duplexvent Flexi DV 2600 Manual de instalação, utilização e manutenção - Página 12
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Check around air vents with room
9.3
air induction and extraction air
outlets for solid deposits
Clean structural parts of secondary
9.4
air flow
While checking air filters make sure the following is documented (e.g. in the operational logbook):
− Pressure difference
− Time of operation
− Appearance (check for cracks in filter material and leaks between the frame and mounting wall)
If significant contamination or cracks are present the air filter should be replaced!
Hygiene inspections should be carried out regularly every 3 years. As per the requirements of the VDI 6022 standard the
inspection must include the following steps:
− Inspecting the application and rooms it supplies with the company´s doctor and HR representative in attendance, with
attention paid to apparent deficiencies
− Measurement of physical climatic parameters (temperature, humidity, air flow rate) at sample points in the appliance and in
the rooms
− Inspecting hygienic conditions including specific tapping on filters and heat exchangers
− Checking the total content of Legionella germs (must be carried out by the hygiene authority)
− A written report on the inspection results to the user with recommendations and required corrective measures during a
business meeting
The total number of Legionella germs should not exceed 1 KBE/ml.
All inspections should be documented
9 .
C l e a n i n g a n d m a i n t e n a n c e
9.1 General
●
During the maintenance of the appliance follow instructions from the previous chapters, observe the basic rules of safety at work
and proceed in compliance with the working regulations and use suitable means of access to the HVAC equipment (ladders,
mobile stepladders, platforms etc.).
●
Maintenance consists particularly in the visual inspection of the appliance, a regular replacement of air filters and cleaning the
heat recovery exchanger.
●
Observe personal hygiene during the maintenance of the appliance. We recommend using personal protective equipment (face
masks, rubber gloves etc.).
●
We recommend commissioning the maintenance and cleaning of the appliance to a specialist service company.
9.2 Cleaning the cabinet
●
After opening the door of the unit vacuum clean all impurities. Possibly wipe clean and disinfect.
●
Check the condition of the door seal.
●
Check the condensate drain for cleanliness and flooding. A blocked drain might cause serious problems.
9.3 Air filters, replacing filter cassettes
●
As standard, the appliance contains outdoor (e1/ODA) and extraction air filters (i1/ETA), which should be regularly replaced.
●
The filters are designed to capture dust particles and thus protect your health as well as the other parts of the appliance from
contamination; therefore make sure they are replaced regularly!
●
Only carry out filter replacement operations if you do not suffer from allergies to dust particles. Avoid replacing filters when
persons with such allergies are present.
●
Replacement is carried out depending on the dust load of the external and internal environment and the subsequent
contamination of filters and an increase in air resistance indicated by the differential manostats every 500 to 2000 running hours.
The filter cassettes are replaced when the final permitted difference between filter pressures or the time interval for replacement
have been reached, or if the filters show technical or hygienic functional defects. Earlier replacement or shorter replacement
intervals are desirable if the results of a hygiene inspection show it appropriate.
When replacing the filter cassettes, avoid the contamination of the surroundings, other air-handling parts of the appliance as well
as the rooms being ventilated. In particular make sure that the newly installed filters have not been contaminated by dust from
the old ones!
●
Spare filter cassettes are to be ordered from the manufacturer. Please include in your order the order code of the cassette (the
code is shown on the identification plate of the appliance).
●
After opening the unit door, slide out the contaminated cassettes from the guide rails and insert new ones.
●
During insertion make sure that the identification plate of each filter cassette faces your direction (i.e. the appliance door) and
that the arrow showing the direction of air flow always points toward the heat recovery exchanger!
●
Make sure that each section (supply, exhaust) has filter cassettes with the correct filter grade as indicated on the identification
plate of the appliance.
●
Dispose of the contaminated cassettes with general municipal waste.
Clean
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