Functional Description Fan Unit Els Ec - Helios ELS EC Série Notice De Montage Et D'utilisation

Installation and Operating Instructions
CHAPTER 4
FUNCTION
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Fan unit ELS EC..
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Functional description Fan unit ELS EC..

Ventilation through activation/deactivation e.g. in combination with light switch or multistage with stage switch.
4.1 Functional description Fan unit ELS EC.. N (with fixed start-up delay and overrun time)
Ventilation through activation/deactivation with fixed start-up delay of 45 sec. and fixed overrun time of 15 min. e.g. in
combination with light switch or multistage with stage switch.
The start-up delay for multi-speed types only takes place from standstill. The overrun time for multi-speed types only
takes place for the last actuated stage.
4.2 Functional description Fan unit ELS EC.. NC (with start-up delay, overrun & interval switching)
With start-up delay, integrated overrun and interval switching. Optional start-up delay 0 or approx. 45 sec., optional
overrun time approx. 6, 10, 15, 21 minutes, optional interval time approx. 0, 8, 12, 24 hrs. The start-up delay for
multi-speed types only takes place from standstill. The overrun time for multi-speed types only takes place for the last
actuated stage. The interval time always works at the highest stage.
Push button operation is only possible in connection with deactivated start-up delay.
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The factory settings (start-up delay 45 sec., overrun time 15 min.) must only be set or changed by an authori-
sed electrician!
Before opening the cover:
After fully isolating the unit from the power supply and removing the spiral from the casing, wait 3 min. until the connec-
tion cover can be opened.
4.3 Functional description Fan unit ELS EC.. P (with integrated presence sensor)
This control unit contains a PIR sensor. The sensor detects thermal radiation, which is invisible to the human eye, but
typical for human beings. If a person enters the detection range of the sensor, it recognises the room use and activa-
tes the fan. If no other movement is detected in the detection range, the 15 minute overrun time will begin. Any other
movement within the overrun time will restart the overrun time.
Regardless of the sensor control unit, the fan can also be controlled via the required ventilation.
With start-up delay and integrated overrun time. Optional start-up delay 0 or approx. 45 sec., optional overrun time
approx. 6, 10, 15, 21 minutes. The start-up delay for multi-speed types only takes place from standstill. The overrun
time for multi-speed types only takes place for the last actuated stage.
The sensor control unit always works at the highest stage.
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The factory settings (start-up delay 45 sec., overrun time 15 min.) must only be set or changed by an authori-
sed electrician!
Before opening the cover:
After fully isolating the unit from the power supply and removing the spiral from the casing, wait 3 min. until the connec-
tion cover can be opened.
Range and detection angle:
Under ideal conditions up to approx. 5 m, horizontal 100°, vertical 82°, see Fig. 21. The temperature difference bet-
ween the object and background must be at least 4 °C. The lowest object speed is 0.5 to 1.5 m/s. The range depends
on the temperature difference, movement and speed.
Note: The sensor cannot detect movement if it is covered, e.g. by shower curtains or the like. If the object moves at the
border of the measuring range, it is possible that the object will not be detected.
The best detection coverage is achieved when the predominant movement direction in the room is at a right angle to
the sensor. There is an area in which no objects can be detected directly in front of the Sensor (0°).
The following errors can occur during movement detection:
Other heat sources
– Animals
– Light sources with high IR proportion (e.g. sunlight, incandescent lamps, etc.)
– Rapidly changing air temperature differences, which result from e.g. the activation of air conditioning units, fan heaters
or the like.
Other error sources
– IR filters in front of the sensor, e.g. glass or acrylic, absorb a proportion of the thermal radiation,
so that the objects may no longer be detected.
– If the heat source moves very rapidly or very slowly (see above), detection is not possible.
4.4 Functional description Fan unit ELS EC.. F (with automatic humidity control)
With integrated, electronic, humidity curve-dependent automatic control unit. If 70 % relative humidity is exceeded or
a rapid increase in humidity, the fan will be automatically activated. Always at the highest stage for multi-speed types.
Once the normal room air humidity is achieved, the fan will deactivate again. Regardless of the humidity control unit,
the fan can be activated with an external switch (possibly connected to light) with start-up delay and overrun time.
Optional start-up delay 0 or approx. 45 sec., optional overrun time approx. 6, 10, 15, 21 minutes. The start-up delay
for multi-speed types only takes place from standstill. The overrun time for multi-speed types only takes place for the
last actuated stage.
The sensor control unit always works at the highest stage. Regardless of the sensor control unit, the fan can also be
controlled via the required ventilation.
Factory settings:
Start-up delay: 45 sec., overrun: 15 min.
Activation threshold 70 % (adjustable)
Deactivation threshold 60 % (= activation threshold - 10 %)
The following functions are implemented:
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