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
- 21 -
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
12 Operating the M-WRG-S/Z-KNX, M-WRG-S/Z-KNX-F,
M-WRG-S/Z-KNX-FC ventilation units
The ventilation unit can be controlled via the following interfaces:
—
directly on the ventilation unit using the stepping switch (see section 13.1 on page 23)
—
control via building control system with KNX bus, e.g. 6-fold pushbutton sensor with LEDs
NOTE
The ventilation unit always carries out the last command that it received from one of the two inter-
faces (stepping switch on the ventilation unit or control via KNX bus).
12.1 Operation with control via KNX bus
The ventilation unit was connected to the building control system and configured by the electrician.
The following ventilation programs can be activated via the KNX bus, depending on the unit type:
12.1.1 “Reduced ventilation (people absent)” program
The ventilation unit runs at the lowest ventilation level (15 m
3
/h). This operating
mode can be selected when the occupier is absent (e.g. on holiday) to ensure a
minimum level of air renewal. This includes the ventilation for moisture protection.
NOTE
The associated LED flashes in the event of a fault (e.g. faulty sensor or motor).
12.1.2 “Normal ventilation (people present)” program
The ventilation unit runs at the middle ventilation level (30 m
3
/h). This is the normal
mode used to achieve the ventilation needed to meet hygiene and health require-
ments when the users are present.
NOTE
The associated LED flashes when the air filters need to be changed (see section
12.1.3 “Increased ventilation” program
The ventilation unit runs at a higher ventilation level (60 m
3
/h) in order to dissi-
pate load peaks, e.g. when there are multiple people present or increased odour
nuisance.
