1.6 Environmentally-friendly disposal
The components of the wireless CO
2
sensor must not be
disposed of in the residual waste bin.
► In Germany, metal and plastic components should be disposed
of at the local recycling centre. The national regulations in other
EU states should also be followed.
► In Germany, electrical components should be disposed of in
accordance with the Electrical and Electronic Equipment Act
(ElektroG). In other EU states, the national implementation of the
Waste Electrical and Electronic Equipment Directive 2012/19/EU
(WEEE) should be followed.
► The regulations and statutory requirements in your own country
concerning disposal should also be followed.
1.7 Explanation of the symbols used
► This symbol indicates an action to be taken.
— This symbol indicates a list.
2
Safety
The wireless CO
2
sensor is approved only for use in dry interior
areas and must be protected against humidity and moisture to
prevent short-circuits. Parts of the wireless CO
2
sensor carry poten-
tially fatal voltages.
2.1 Hazard classification
DANGER
The signal word designates a hazard with a
high
degree of risk
which, if it is not avoided, will result in death or severe injury.
WARNING
The signal word designates a hazard with a
medium
degree of
risk which, if it is not avoided, will result in death or severe injury.
CAUTION
The signal word designates a hazard with a
low
degree of risk
which, if it is not avoided, could result in minor or moderate injury.
NOTICE
A note as used in this manual contains important information
about the product or about a part of the manual to which particular
attention should be paid.
2.2 Notes on operation
This unit may be used by children from 8 years old and by persons
of restricted physical, sensory or mental abilities or persons lacking
experience and knowledge if they are supervised or have been
instructed in how to use the unit safely and understand the associ-
ated hazards. Do not allow children to play with the unit. Cleaning
and user maintenance must not be carried out by children unless
they are supervised.
2.3 Intended use
The wireless CO
2
sensor must only be used to operate M-WRG-II
and M-WRG ventilation units. Any different or more extensive usage
will be regarded as contrary to the intended use. The intended use
also includes compliance with all the notes in these instructions.
For any use contrary to the intended use, Meltem Wärmerückge-
winnung GmbH & Co. KG shall accept no liability for any damage
that may occur and offers no warranty that the components will work
perfectly and correctly.
3
Items supplied
— Wireless CO
2
sensor M-WRG-II FSC
— 2x screws and dowels
4
Installation and set-up
DANGER
The activities described in this chapter must only be carried out by
specialised personnel (see section 1.3).
NOTICE
Never install the wireless CO
2
sensor in a metal enclosure, other-
wise wireless communication between the wireless sensor and
ventilation unit will not be possible.
4.1 Removing the cover and safety cover plate
1
2
3
4
5
Fig. 2: Removing the cover and safety cover plate
► Press the tab (item 1 in Fig. 2) on the underside of the housing
(item 3 in Fig. 2) and pull the cover (item 2 in Fig. 2) away from
the housing.
► Use a small flat-bladed screwdriver to press the latch (item 4 in
Fig. 2) and lift up the safety cover plate (item 5 in Fig. 2).
4.2 Introducing the mains cable and fixing the housing
to the wall
DANGER
Potentially fatal voltages
— The electrical installation work must only be carried out by a
qualified electrician.
— The VDE regulations or any special safety regulations appli-
cable in your country apply to the electrical installation work.
► Before starting installation or maintenance work, disconnect
the mains cable for connecting to the wireless CO
2
sensor on
all poles from the mains supply.
► Observe the five safety rules (DIN VDE 0105-100,
EN 50110-1) for working on electrical systems:
— Disconnect from mains (all-pole disconnection of a system
from live parts)
— Secure against reconnection
— Check that the system is voltage-free
— Earth and short-circuit
— Cover or block off access to adjacent live parts
4
5
1
2
3
4
Fig. 3: Introducing the mains cable and fixing the housing to the
wall
► Introduce the mains cable into the housing (item 4 in Fig. 3)
from behind (item 1 in Fig. 3) or from below (item 2 in Fig. 3). If
appropriate, break out the plastic tabs (item 3 in Fig. 3) on the
bottom cable inlet.
► Use the screws and dowels provided (item 5 in Fig. 3) to fix the
housing in the desired position.
Summary of Contents for M-WRG-II FSC
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