Operating instructions
M-WRG-S/Z-S, M-WRG-S/Z-24,
M-WRG-S/Z-EIB, M-WRG-S/Z-KNX (-F, -FC) ventilation units
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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 AT I O N & H E AT R E C O V E R Y
1 Introduction
1.1
Notes on the operating instructions
These original operating instructions contain important information that should be followed
when setting up and using the M-WRG-S/Z-S, M-WRG-S/Z-24, M-WRG-S/Z-EIB and
M-WRG-S/Z-KNX (-F, -FC) ventilation units.
►
Read all the instructions carefully before starting up the ventilation unit to avoid possible
risks and mistakes.
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When assembly is complete, give these instructions to the home owner, caretaker or prop-
erty manager.
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These instructions are part of the product. Keep the instructions in a safe place for future
reference.
WARNING
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Follow ALL danger and warning instructions and notes on precautionary measures.
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Read section „2 Safety instructions“ on page 9 carefully.
1.2
Description
These instructions describe how to set up and
operate the decentralised ventilation units
M-WRG-S/Z-S, M-WRG-S/Z-24, M-WRG-S/Z-EIB
and M-WRG-S/Z-KNX (-F, -FC) (see Fig. 1).
M-WRG stands for Meltem heat recovery. Home
ventilation experience extending back over
35 years has been incorporated into this product
from Meltem Wärmerückgewinnung.
Using windows for ventilation, particularly during
periods of cold weather, is now a thing of the
past. This ventilation unit brings in outdoor air fully
automatically, and heats it by recovering heat from
the air that is extracted. Outdoor air and extract
air are routed in separate ducts through a cross-
flow plate heat exchanger (see section 5.2.2 on
page 14).
You save on heating costs, increase your living
comfort and are kind to the environment by
reducing CO
2
emissions. An air filter also removes
pollen, dust and other impurities from the outdoor air.
The ventilation units are designed for continuous operation and can be both surface-mounted and
flush-mounted. They are low-maintenance, but
regular air filter changes
are important.
A stepping switch on the ventilation units is used to set three different power levels and a
time-limited intensive ventilation level. The ventilation units also have different communication
Fig. 1: M-WRG-S/Z-S, M-WRG-S/Z-24, M-WRG-S/Z-
EIB, M-WRG-S/Z-KNX (-F, -FC) ventilation units