V E N T I L A T I O N & H E A T R E C O V E R Y
INSTALLATION INSTRUCTIONS AND
USER GUIDE
Part no. 744012EN, Week 47/2019 EN
External wireless CO
M-WRG-II FSC
2
Fig. 1: External wireless CO
Item in Fig. 1
Description
1
Control button (touch-sensitive)
2
3
1
Introduction
1.1
Notes on these instructions
These instructions contain important information that
should be followed when installing and using the wire-
less CO
sensor.
2
► Read all the instructions carefully to avoid possible risks and
mistakes.
► These instructions are part of the product. Keep the instructions
in a safe place for future reference.
NOTICE
► When operating the ventilation unit, also follow the operating
instructions that were supplied with your unit.
1.2
Description
The wireless CO
sensor is used for wireless operation of ventilation
2
units from the M-WRG-II and M-WRG series constructed from 2020
onwards (excluding bus unit types). It can also be used to determine
the CO
concentration at an installation location selected by you,
2
provided that it is within the wireless range. The "CO
"Automatic mode" ventilation programs use the transmitted values
to automatically adjust the unit's air flow to the required ventilation
level. One wireless CO
sensor may be linked to each ventilation
2
unit. If the ventilation unit has an internal CO
matically disabled. The wireless CO
control function into ventilation units without an internal CO
The control button (item 1 in Fig. 1) is used to activate five different
ventilation levels/programs. The current selection is indicated by
one of the five green mode LEDs (item 3 in Fig. 1). The multi-
coloured status LED (item 2 in Fig. 1) signals the wireless sensor
and ventilation unit operating statuses. If the CO
exceeds 800 ppm (factory setting) in the "CO
mode" ventilation program, the ventilation level is increased contin-
uously up to max. 60 m
/h until the CO
3
drops back below 800 ppm. When it is started for the first time, the
wireless CO
sensor takes 2 minutes to calibrate itself so that it can
2
return stable values.
The wireless sensor is fixed to the wall with the dowels and screws
provided (see section 4.1). A 230 V connection is needed for oper-
ation.
sensor
2
3
1
sensor
2
control" and
2
sensor, it will be auto-
2
sensor incorporates the CO
2
concentration
2
control" or "Automatic
2
concentration in the room
2
The optional M-WRG-FBH wireless remote control, part no. 5478-10,
can be used to program the functions of the wireless sensor. You
will find more details in the "User guide for wireless remote control
M-WRG-FBH". The wireless CO
with the M-WRG-FBH wireless remote control, M-WRG-FT 4-way
wireless pushbutton switch and M-WRG-II FSF wireless humidity
sensor and in conjunction with the U
M-WRG-II and M-WRG covers.
1.3
Target group
These installation and operating instructions are aimed at two target
groups:
The activities described in chapter "4 Installation and set-up" must
only be carried out by specialised personnel with the following
qualifications:
— Training in the installation and commissioning of electrical
devices
— Training in electrical hazards and the local safety requirements
— Knowledge of the relevant standards and directives
— Knowledge and observance of this document and all the safety
instructions
The other chapters of this document are intended for users of the
wireless CO
2
1.4
EU declaration of conformity
The wireless CO
Type: M-WRG-II FSC
Part number: 733011
manufactured by
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4
D-82239 Alling
conforms to the regulations and standards listed in the EU Declara-
tion of Conformity.
1.5
Technical data
Product characteristics
Dimensions (W x H x D)
Weight
Colour
Material of the plastic parts
Ambient conditions
Ambient temperature during
Ambient temperature for storage and
shipping
Relative humidity
IP code (IEC 60529)
Electrical connection
Operating voltage
Mains frequency
Maximum power consumption
Cable cross-section
Wireless connection
2
sensor.
2
Communication frequency
Output power
Data logging
Measurement range
Measurement accuracy (within the
measurement range, >10 minutes
after switching on)
Time taken to achieve measurement
stability after switching on
sensor can also be used in parallel
2
installation version and all
2
sensor. No special prior knowledge is needed.
sensor described below
2
100 mm x 100 mm x 25 mm
approx. 125 g
white, similar to RAL 9010
ABS
0 °C to 40 °C
-20 °C to 55 °C
0 % to 90 %,
non-condensing
IP30
195 V AC to 253 V AC
50 Hz
4 W
0.25 mm
868.3 MHz
at least 0 dBm
400 ppm to 2,000 ppm
40 ppm + 2 % of the
measured value at 20 °C
2 min
to 2.5 mm
2
2
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