M-WRG-S
User Manual
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1. You have made the right choice!
With the M-WRG-S decentralized ventilation unit with heat recovery, you acquired a high quality product.
M-WRG-S stands for Meltem – heat recovery – with comfort. Meltem‘s „know how“ of more than 30 years
developing and producing decentralized ventilation systems is now combined with their innovate heat recovery
process.
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 units have a 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.
The system is constructed for continuous operation. We guarantee an effective operation as well as a long
lifespan of the system if it is correctly used. We hope you will enjoy your new M-WRG home ventilation system
with heat recovery!
1.1 Safety and Security
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The M-WRG-S ventilation unit may only be operated once installed correctly.
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For correct installation of the system please follow the instructions of the assembly manual.
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The M-WRG-S ventilation unit may only be used for the ventilation of living space and interior rooms
(Kitchens, bathrooms, basements, offices, etc). With rooms that have an excessive build up of dust and
corrosive gas emissions, the M-WRG-S ventilation unit may be limited and/or damaged in its operating
capacity.
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Please familiarize yourself with the operating modes and procedures of the M-WRG-S ventilation unit.
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The M-WRG-S ventilation unit is especially suitable for the drying phase after the building is constructed
and the inhabitants have moved in. It is not suitable for drying a building during construction or to
ventilate a building while interior renovations are in progress. A continuously high concentration of dust
and/or moisture will clog the filters additionally and overwork the automated extraction of condensate.
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Never operate the M-WRG-S ventilation unit without the suitable filters. The filters protect your health
and your living space from exterior environmental influences. Only with the suitable filters, the M-WRG-S
ventilation unit will remain clean. Additionally it will prevent the pollution of the electrical components and
the heat converter, as well as reduce or prevent full operating capacity of the M-WRG-S ventilation unit.
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Do not install the M-WRG-S ventilation unit into the interior of a cabinet or other furniture. Do not cover
the M-WRG-S ventilation unit with a any type of fabric (towel, curtains, etc.) or any other objects
(furniture, blinds, etc.).
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Please follow the instructions contained in this user manual.
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Please follow the maintenance instructions contained in this user manual.
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Important Indication according to DIN EN 60335: This M-WRG-S ventilation unit is not to be operated
by persons (including children) with limited physical, sensory or mental capabilities, or lack of experience
and/or lack of knowledge. Except if they are supervised, or were given instructions how to use the
M-WRG-S ventilation unit, by a legal guardian responsible for their safety and security. Children should
be supervised, in order to ensure that they are not playing with the M-WRG-S ventilation unit.
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If these Safety and Security regulations are not regarded, Meltem will not be held liable!
Safety Advice for installing the M-WRG-S ventilation unit in rooms with open fire places: For planning and
installation of the ventilation system, the fireplace safety regulations (i.e.FeuVo) have to be met! Before
operating the M-WRG-S ventilation unit, the fireplace regulations have to be discussed and approved by the
responsible official authorities and the chimney sweeper.
