Operating instructions
M-WRG-S/Z-T(-F,-FC) ventilation unit
- 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
on the exhaust air side. When an exhaust air temperature of 4 °C is maintained for a period of
3 minutes, the unit switches back to the previous operating state. If a temperature of 2 °C is not
achieved on the exhaust air side, despite increasing the proportion of extract air, e.g. because the
room has cooled down, the extract air and supply air fans are switched off. As soon as a value of
4 °C is identified at the exhaust air temperature sensor, Ventilation mode is resumed at the fan
level that was set before it was switched off.
10 Ventilation programs
There are different ventilation programs available for selection, depending on the type of ventila-
tion unit. The individual ventilation programs are identified by symbols on the InControl pushbutton
sensor.
10.1 “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).
10.2 “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 sec
-
tion 11 on page 23).
10.3 “Increased ventilation” program
The ventilation unit runs at a higher ventilation level (60 m
3
/h) in order to dissipate
load peaks, e.g. when there are multiple people present or increased odour nui-
sance.
10.4 “Intensive ventilation (15 min)” program
The ventilation unit runs at maximum ventilation level (100 m
3
/h). After roughly
15 minutes or when another button is pressed, the intensive ventilation is ended
and the previously set ventilation level is resumed.
