M-WRG-S
User Manual
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Important user information
Ventilation with heat recovery
M-WRG-S is a decentralized ventilation system with
heat recovery from Meltem. It adds to the value of
your home and creates a healthier indoor climate,
and is a protective measure against moisture and
mold damages in your home.
Ventilation by opening windows especially during
cold seasons, belong to the past. From now on,
fresh and filtered air is supplied fully automated.
The stale air is extracted from your home and while
passing through the heat exchanger its warmth is
transferred to the fresh air. While doing so, the M-
WRG-S ventilation units have minimum power
consumption. You save heating costs, increase the
comfort of your home and at the same time reduce
the impact on the environment by reducing CO2
emissions.
Of course you still may open your windows -
especially during warmer days.
A family of four produces daily an average of 10-14
litres of moisture, due to cooking, laundry, personal
hygiene, and breathing of inhabitants, plants and
animals! This excessive amount of moisture, within
the interior air, is extracted through the M-WRG
ventilation unit and therefore prevents the forming
of mold and resulting building damages. At the
same time, fumes from floors, furniture and a too
high CO2 concentration in the air, which can lead to
fatigue and health issues, will be extracted from the
interior rooms and replaced by fresh and clean air.
Directions for correct usage
Please read this manual carefully and follow the
instructions contained in this manual. Familiarize
yourself with the M-WRG-S ventilation unit, and pay
attention to the warnings and cautions contained in
this manual.
•
Never operate the M-WRG-S ventilation unit
without filters. Only with the original filters from
Meltem, the units will remain clean, fully
operative, and have a long lifespan.
•
The M-WRG-S ventilation unit may only be
operated once installed correctly.
•
When ventilating basements or similar rooms we
advise to be cautious (especially during the
summer season and warm weather), due to the
fact that the moisture in the air will condense on
cold interior walls and - despite ventilation –
moisture damages can occur. Therefore only
ventilate at night during warm weather seasons! If
you would like to ventilate such rooms with a M-
WRG ventilation system, please consult with the
manufacturer prior to purchase.
•
Never cover the M-WRG-S ventilation unit or any
part of it with e.g. cabinets, blinds or curtains. A
minimum distance of 30 cm to any furniture is
required, in order for the M-WRG-S ventilation
unit to remain fully operable.
•
The M-WRG-S ventilation unit has been
designed for continuous operation and a long
lifespan. During cold seasons, the M-WRG-S
ventilation unit should be operated continuously.
High
efficient DC motors and innovative
electronics ensure a very low power consumption
of approx. 3.8 Watt at ventilation rate I. Only a
continuous operation achieves a permanent
extraction of moisture and condensation. If this
does not occur, it is possible that condensate will
gather in the unit.
•
If a high concentration of moisture occurs, we
recommend to regularly ventilating the room at
the highest ventilation level for 10 minutes, in
order to eliminate any possible condensation
inside the unit.
•
In order to guarantee a smooth operation,
especially during low exterior temperatures
(below
-5°C),
you
should
avoid
interior
temperatures below 15°C.
Caution: In case of exterior temperatures below
0°C, icicles may form at the façade covers.
These should be removed for safety purposes.
Filter replacement
The ventilation unit automatically monitors the filter
status. An acoustic warning signal will inform you,
when the filters need to be replaced.
However, for hygienic reasons, it is strongly
recommended to replace the filters at least once
per year, ideally before the heating season.
For a reliable operation of the units and for your
own safety, only original and certified parts
from Meltem shall be used. Otherwise this may
void the warranty and Meltem will not be liable
for any damages.
We hope you will enjoy your new M-WRG home
ventilation system with heat recovery!
