Fan Stage; Intensive Ventilation; Reference Air Flow Rate; Ventilation Pause - Steinberg Systems LWE 40 Mode D'emploi

oPErATIoN
settings
If, on summer nights, the outside temperature is lower than the
room temperature, cross-ventilation is ideal for passive cooling
of the building.
4.4

Fan stage

display
Ventilation I Necessary ventilation for ensuring that the building
for humidity structure is protected under normal conditions of use
protection with somewhat reduced moisture loads, e.g. during
temporary absence of users and no drying of washing
in the residential unit.
Reduced II Reduced ventilation is the ventilation necessary to
ventilation meet hygiene standards and ensure protection of the
building structure (moisture level) under standard
conditions of use with partially reduced moisture and
pollutant loads, e.g. as a result of intermittent user
absence.
Standard III Standard ventilation is the ventilation necessary to
ventilation meet hygiene standards and ensure protection of the
building structure when users are present.
Reference I & III The air flow rate is 70 % of the maximum air flow
air flow rate rate. You can only switch on this fan stage if the refer-
ence air flow rate is enabled. This fan stage can only
be switched on via the programming unit, not via the
switch inputs.
Intensive I & II & III Intensive ventilation is increased ventilation with a
ventilation higher flow rate to reduce load peaks, e.g. for rapid
ventilation during or after a party. Intensive ventila-
tion ends automatically after a time that you set.
f Set the fan stage using the "UP" and "DOWN" buttons.
f The selected fan stage is indicated by the three LEDs on the
"Fan stage" indicator. When the fan stage is "Intensive ven-
tilation", the three LEDs on the "Fan stage" indicator light up
simultaneously.
4.5

Intensive ventilation

In order to set intensive ventilation, press the "ON" button until
the three LEDs on the "Fan stage" display light up.
Setting the duration of intensive ventilation
f When intensive ventilation is activated, press the "Differential
mode" and "Cross-ventilation" buttons simultaneously for at
least 3 seconds.
The "Differential mode" indicator and the "Cross-ventilation" in-
dicator are illuminated.
f Set the duration using the "UP" and "DOWN" buttons.
display Intensive ventilation duration [min] / Fan stage
after end of intensive ventilation
15* 30 45
II* II II
III
II
I
Filter
*: Delivered condition
f To save the selected value, press and hold the "Differential
mode" and "Cross-ventilation" buttons simultaneously for at
least 3 seconds.
20 | LWE 40
60 75 90 105 ∞
II II II II -
4.6

Reference air flow rate

Enabling and disabling the reference air flow rate
Delivered condition: Enabled
f Press and hold the "UP" button for five seconds.
"Differential mode" and "Cross-ventilation" are shown, flashing
alternately.
f Set the mode using the "UP" and "DOWN" buttons.
display disabled
III
f To save the selected value, press and hold the "Differential
mode" and "Cross-ventilation" buttons simultaneously for at
least 3 seconds.
Setting the runtime for the reference air flow rate
You can set the unit runtime with the reference air flow rate.
f Set the "Reference air flow rate" fan stage using the "UP" and
"DOWN" buttons.
f Press and hold the "Differential mode" and "Cross-ventila-
tion" buttons for at least 5 seconds.
f Set the runtime using the "UP" and "DOWN" buttons.
display runtime [min] / Fan stage after end of runtime
15 30 45
II II II
III
II
I
Filter
*: Delivered condition
f To save the selected value, press and hold the "Differential
mode" and "Cross-ventilation" buttons simultaneously for at
least 3 seconds.
4.7

Ventilation pause

You can switch off the appliances for an adjustable time.
f Use the "DOWN" button to select fan stage I.
f Press the "DOWN" button once.
Note
If you press the "DOWN" button again during the venti-
lation pause, this switches off the appliance completely.
During the ventilation pause, LED I or LED II flashes slowly. The
LED for the fan stage that the appliance is switching to after the
ventilation pause flashes.
Duration of the ventilation pause
f During the ventilation pause (stage 0), press the "Differential
mode" and "Cross-ventilation" buttons simultaneously for at
least 3 seconds.
The "Differential mode" and "Cross-ventilation" indicators flash
rapidly and the "Fault" indicator lights up.
Enabled
60 75 90 105 ∞*
II II II II -*
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