Area Of Application; Personnel Qualification - Helios KWL 170 W Notice De Montage Et D'utilisation

Installation and Operating Instructions
Central ventilation unit – KWL 170 W/W ET
required. The locally applicable regulations and laws must be observed!
• The following must be observed before all installation, maintenance and clea-
ning work or before opening the terminal compartment:
◦ Isolate the unit from the mains power supply and secure against unintended
restart!
◦ The rotating parts must first come to a standstill!
◦ Once the rotating parts come to a standstill, a waiting time of 5 min. must be
observed, as dangerous voltages may be present due to internal capacitors,
even after isolation from the power supply!
• It must be ensured that there no foreign bodies remain in the unit after any
work!
• The unit may only be opened by an authorised electrician.
• The unit is designed so that it is possible to change the filter without removing
the doors on the front side. Therefore, this action can also be carried out by
the user.
• If the unit network cable is damaged, it must be replaced by the Helios custo-
mer service team or a qualified electrician.
1.4

Area of application

– Intended use
The central ventilation unit KWL 170 W/W ET with heat recovery is designed for the central supply and extract venti-
lation of residential houses and apartments. The unit is suitable for conveying normal or slightly dusty (particle size <
10 µm), less aggressive and humid air in a moderate climate and in the range of its performance curve. The maximum
permissible air flow temperature is +40 °C.
Operation is only admissible with fixed installation within buildings. The unit is designed for installation on the wall, in a
front wall or installation in a cabinet. The standard equipment allows installation and operation in frost-free rooms from
+5 °C to +45 °C and a relative humidity < 90 % (non-condensing).
Any other use than the intended use is prohibited!
– Reasonably foreseeable misuse
The unit is not suitable for operation under difficult conditions, such as high levels of humidity, aggressive media, long
standstill periods, heavy contamination (e.g. greasy air), excessive loads due to climatic, technical or electronic influen-
ces. The same applies for the mobile use of the unit (vehicles, aircraft, ships, etc.). Usage under these conditions is only
possible with release approval from Helios, as the standard version is not suitable in this case.
The operating point must not lie outside of the characteristic curve.
– Improper, prohibited use
The conveying of solid matter or solid matter content > 10 µm in the air and liquid is not permitted. Transport media,
which affect the materials of the fan, and abrasive media are not permitted.
Use in explosive atmospheres is not permitted.
The unit must not be operated without piping or with an open unit cover.
1.5

Personnel qualification

The electrical connections and electrical commissioning as well as maintenance and cleaning work may only be carried
out by qualified electricians.
Installation work may only be carried out by trained specialists (e.g. industrial mechanics, mechatronics engineers,
ventilation fitters or persons with comparable education).
The operation of the unit as well as the filter replacement and condensate drain maintenance may be carried out by
the user.
4
EN