7
4.
Operation
4.1 General
A product from the WRG 300 / 400 EC range
is a highly developed heat recovery fan,
which, thanks to the latest electronic control-
ler, combines minimum energy consumption
and maximum comfort in a single unit.
A
micro-processor controller guarantees the
safe operation of the fan and ensures that the
defined air volume values remain constant.
The WRG 300 / 400 EC is equipped with an
operating panel with display. This makes it
possible to make a continuous air volume
adjustment and to read off the operating data
without opening the ventilation unit.
4.2 LED display system and
operating panel
The WRG 300 / 400 EC is equipped with an
operating panel. This is used to call up and/or
modify settings.
The operating panel has four buttons and a
display.
1 Display
2 "
OK
" button (confirm, ready, reset filter
status display)
3 "Increase parameter value” button
4 Function
button
5 "Lower parameter value” button
The lefthand area of the display shows the
ventilation level or the parameter type. The
righthand area shows the read-out value, e.g.
the defined air volume.
Example:
From the display, you can read off that the
unit is operating at ventilation level 3, with a
flow rate of 280 m
3
/h.
The 4 buttons have the following functions:
F
Switch function button / parameter
menu on and off
+
Next parameter / Increase value
-
Previous parameter / Lower value
OK
Switch setting menu on and off
/ manual error reset / filter status
display
reset
Further commands can be entered with but-
ton combinations.
F and + (set)
Confirm parameter value
F and - (reset)
Reset parameter value back
to factory setting
OK and + (ON)
Switch on unit
OK and - (OFF)
Switch off unit
In the case of an operating procedure carried
out using function buttons, the corresponding
button is identified by quote marks and bold
print in the manual.
Example: - Press "
OK
"
button
