User guide
Wireless remote control M-WRG-FBH
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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 A T I O N & H E A T R E C O V E R Y
8.1.3 “Humidity control”
Symbol
Default view
Description
The ventilation unit runs constantly at the lowest ventilation
level (10 m
3
/h*). If the relative room air humidity exceeds
60 % RH, the ventilation level is increased continuously up to
max. 60 m
3
/h until the humidity in the room drops back below
60% RH.
NOTICE
To ensure dehumidification, the ventilation unit compares
the calculated absolute humidity of the supply air and extract
air. LED 3 on the M-WRG-II ventilation unit flashes when the
humidity of the outdoor air is greater than that of the extract
air, which means that dehumidification is not possible.
8.1.4 “CO
2
control”
Symbol
Default view
Description
The ventilation unit runs constantly at the lowest ventilation
level (10 m
3
/h*). A CO
2
sensor monitors the air quality in the
room. If the limit of 800 ppm is exceeded, the ventilation unit
calculates the optimum air renewal and sets the required venti-
lation level in the range from 10 - 60 m
3
/h.
If equipped with the M-WRG-II O/VOC-AUL option, ventila-
tion units with a CO
2
sensor can also detect volatile organic
compounds in the outdoor air using a VOC sensor.
NOTICE
—
When it is started up for the first time, the ventilation unit
must remain switched on for at least 15 minutes without
interruption so that the VOC sensor can be calibrated.
►
Make sure that the air is not severely contaminated
during the calibration phase by solvents, for example.
— When you switch on again, it will take roughly 5 minutes
for the sensor to recalibrate.
* The ventilation level can be reduced from 10 to 0 m
3
/h at the factory or using the optional wireless remote control
M-WRG-FBH. The ventilation unit switches to sniffing mode and interrupts its operation for the set pause time (set to
60 minutes at the factory). The relative humidity or CO
2
concentration is then checked for a 5-minute period. If the cor-
responding limit is exceeded, the ventilation unit switches back to ventilation mode.
