oPErATIoN
settings
www.stiebel-eltron.com
LWE 40 |
19
EN
GL
ISH
One of the paired appliances permanently draws the extract air
from the building. The other appliance permanently draws supply
air into the building.
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
for humidity
protection
I
Necessary ventilation for ensuring that the building
structure is protected under normal conditions of use
with somewhat reduced moisture loads, e.g. during
temporary absence of users and no drying of washing
in the residential unit.
Reduced
ventilation
II
Reduced ventilation is the ventilation necessary to
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
ventilation
III
Standard ventilation is the ventilation necessary to
meet hygiene standards and ensure protection of the
building structure when users are present.
Reference
air flow rate
I & III
The air flow rate is 70 % of the maximum air flow
rate. You can only switch on this fan stage if the refer-
ence air flow rate is enabled.
Intensive
ventilation
I & II & III
Intensive ventilation is increased ventilation with a
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
f
Set the fan stage using the "UP" and "DOWN" buttons.
f
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
To set intensive ventilation, press the "UP" button while standard
ventilation is active (LED III lights up).
Setting the duration of intensive ventilation
f
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
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
60
75
90
105
∞
II
II
II
II
II
II
II
-
III
II
I
Filter
Delivered condition : 15 minutes
f
f
To save the selected value, press the "Differential mode" and
"Cross-ventilation" buttons simultaneously.
4.6 Reference air flow rate
Enabling and disabling the reference air flow rate
Delivered condition: Enabled
f
f
Press and hold the "UP" button for five seconds.
"Differential mode" and "Cross-ventilation" are shown, flashing
alternately.
f
f
Set the mode using the "UP" and "DOWN" buttons.
display disabled
Enabled
III
f
f
To confirm, press the "Differential mode" and "Cross-ventila-
tion" buttons simultaneously.
Setting the runtime for the reference air flow rate
You can set the unit runtime with the reference air flow rate.
f
f
Set the "Reference air flow rate" fan stage using the "UP" and
"DOWN" buttons.
f
f
Press and hold the "Differential mode" and "Cross-ventila-
tion" buttons for at least 5 seconds.
f
f
Set the runtime using the "UP" and "DOWN" buttons.
display
runtime [min] / Fan stage after end of runtime
15
30
45
60
75
90
105
∞
II
II
II
II
II
II
II
-
III
II
I
Filter
f
f
To confirm, press the "Differential mode" and "Cross-ventila-
tion" buttons simultaneously.
4.7 Ventilation pause
You can switch off the appliances for an adjustable time.
f
f
Use the "DOWN" button to select fan stage I.
f
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
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.
f
f
Set the duration using the "UP" and "DOWN" buttons.