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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
V E N T I L A T I O N & H E A T R E C O V E R Y
5.1.4
Important notes on the filter change
—
Never run the ventilation unit without air filters.
—
Always use genuine Meltem filters. These are precisely matched to your M-WRG-II
ventilation units, ensure minimal pressure losses and will ensure a long service life
from your ventilation units.
—
DIN 1946-6 “Ventilation for residential buildings” recommends changing air filters
every six months. The air filters for outdoor air and extract air should be replaced at
least once a year on hygiene grounds, ideally before the cold weather starts.
—
In high levels of air pollution (e.g. from road traffic or industry, rooms with high dust
levels) change the filters
every six months
.
—
Always replace air filters in pairs. The permeability of both air filters affects the effi
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ciency and power consumption of the ventilation unit.
—
Observe the filter change indicator (LED 1 lights up continuously, see Fig. 3 on
page 7) and replace the air filters as necessary.
NOTICE
An outdoor air filter from filter class ISO ePM1 ≥50% (F7) is needed to fulfil the hygiene
requirements defined in VDI 6022 and DIN 1946-6 (category H). Every M-WRG-II venti
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lation unit is equipped with such an air filter as standard.
5.2
Cleaning the ventilation unit
WARNING
► Switch off the power to the ventilation unit before cleaning.
► When cleaning, make sure that no moisture penetrates into the inside of the
housing.
► Never use a high pressure cleaner, steam cleaner or steam jet.
The ventilation unit is made of high quality plastic and requires little care.
► Wipe the outer surfaces from time to time with a soft, damp cloth. Use mild soapy
water. A commercially available plastic cleaner can be used for particularly stubborn
dirt.
NOTICE
► Never use acidic, corrosive or abrasive cleaning agents.