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
- 18 -
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
9 Operating the M-WRG-S/Z-S ventilation unit
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)
—
via a three-step rotary switch with zero position provided by the customer and an optional
pushbutton for intensive ventilation
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 three-step rotary switch with zero position).
9.1
Three-step rotary switch with zero position
The following operating modes can be selected on the three-step rotary switch with zero position:
Switch position on the
three-step rotary switch
with zero position
Air flow
0
0 m
3
/h (Standby mode, see section 13.2 on page 24)
1
15 m
3
/h
2
30 m
3
/h
3
60 m
3
/h
NOTE
You can exit Standby mode (see section 13.2 on page 24) as follows:
►
Use the stepping switch on the ventilation unit to select a ventilation level between I and III
(see section 13.1 on page 23).
►
Select a ventilation level between 1 and 3 on the three-step rotary switch with zero position
provided by the customer.
9.2
Optional pushbutton for intensive ventilation
The optional pushbutton allows you to start 15 minutes of intensive ventilation at maximum power
level (100 m
3
/h). The ventilation unit then resumes operation at the previously set ventilation level.
You can cancel intensive ventilation while it is running by selecting a ventilation level on the three-
step rotary switch.
