Helios KWL 470 W Notice De Montage Et D'utilisation page 60

Installation and Operating Instructions
EN
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DANGER
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WARNING
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WARNING
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WARNING
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WARNING
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Central ventilation unit – KWL 470 W/W ET
Proceed as follows to replace the filters:
– Intake air filter
1. Unhook panel (magnetic) upwards and remove filter co-
ver (foam part).
2. Pull intake air filter
ò
Fig. 38).
– Extract air filter
Depending on the intake air connection, the extract air filter
is located on the right (intake air connection from right) or
left side (intake air connection from left) of the unit.
3. Carefully remove the filter panel (plastic part).
4. Pull extract air filter
ù
Fig. 38).
5. Confirm the filter replacement:
– enter the filter replacement date and confirm via the
easyControls 3.0 software in the menu "Home-
page"> "Filter replacement".
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– confirm with via the control element KWL-BE Touch.
– the filter replacement can be confirmed via the slide switch control element KWL-BE Eco. For this purpose, switch
through all operating stages 4x within one second (up–down–up–down.
The unit is equipped with filters ISO Coarse 65 % on the intake air and extract air sides as standard.
The filters are available as accessories:
Replacement air filter Coarse filter Coarse 65 % (2 pcs.)
Replacement air filter Fine filter ePM 1 50 % (1 pc.)
Replacement air filter Activ. carbon ePM 2.5 60 % (1 pc.)
The filters can be ordered at www.Ersatzluftfilter.de.
9.3 Heat exchanger maintenance and cleaning
9.3.1 Heat exchanger maintenance
The heat exchanger must be checked as needed or at least every year for contamination and dirt (visual inspection) and,
if necessary, cleaned, see chapter 9.3.2 „Heat exchanger cleaning", page 29.
9.3.2 Heat exchanger cleaning
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Danger to life due to electric shock
An electric shock can result in death or serious injuries.
> Before opening the unit, the unit must be fully isolated from the power supply.
> The unit may only be opened by an authorised electrician.
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Risk of burns due to hot surfaces!
Hot surfaces can cause serious burns.
> Allow unit to cool down for at least 5 minutes or wait until the fans are turned off.
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Risk of injury due to rotating fans!
Rotating fans can injure limbs and cause serious injuries.
> Before working on the unit, wait until the fans are turned off.
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Risk of injury due to the panel or unit door falling down!
The panel or unit door can fall down when removing and cause serious injuries.
> Wear protective footwear.
> Carefully remove the panel or unit door with both hands.
1. Unhook panel (magnetic) upwards.
2. Loosen and remove the screws in the unit door.
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Risk of injury due to the high weight of the heat exchanger!
The heat exchanger can fall down and cause serious injuries when removed from the unit.
> Wear protective footwear.
> Carefully remove the heat exchanger from the unit with both hands.
3. Carefully remove the heat exchanger
to the front and replace (see
to the front and replace (see
from the unit (see Fig. 39).
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Fig. 39
ò
29
ò
ù
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ELF-KWL 360/470/4/4 Ref. no. 07371
ELF-KWL 360/470/4/4 Ref. no. 07375
ELF-KWL 360/470 AK Ref. no. 08129
Fig. 38