2.0
Important information
To ensure safety and correct operation please read and observe the following instructions carefully before proceeding.
The electrical connection must be fully isolated from the supply up to the final assembly !
Put the installation and
operating instructions, as well as accessories for the final assembly, after occurred installation into the ELS- casing and
closed the casing with the cover plate to the final assembly. After the final assembly the document must be handed out
to the operator (tenant/owner).
2.1
Warning and safety instructions
Accompanying symbol is a safety-relevant prominent warning label. All safety regulations and/or symbols
must be absolutely adhered to, so that any danger situation is avoided.
2.2
Warranty – Exclusion of liability
If the preceding instructions are not observed all warranty claims and accommodation treatment are excluded. This
also applies to any liability claims extended to the manufacturer.
The use of accessories not offered or recommended by Helios is not permitted. Potential damages are not liable for
warranty.
2.3
Certificates
If the product is installed correctly and used to its intended purpose, it conforms to all applicable European Standards
at its date of manufacture. Types with 'national technical approvals', DIBt. Certificate number:
Z-51.1-193
2.4
Receipt
Please check delivery immediately on receipt for accuracy and damage. If damaged, please notify carrier immediately.
In case of delayed notification, any possible claim may be void.
2.5
Storage
When storing for a prolonged time the following steps are to be taken to avoid damaging influences: sealing of bare
parts with anti-corrosion agent, protection of motor by dry, air- dustproof packing (plastic bags with drying agent and
moisture indicators). The storage place must be water proof, vibration-free and free of temperature variations.
When storing for several years or non rotation of motor an inspection of the bearings with possible relubrication and an
electrical inspection to VDE 0701 and VDE 0530 are absolutely necessary before starting operation. When transhipping
(especially over longer distances) check if the packing is adequate for method and manner of transportation.
Damages due to improper transportation, storage or putting into operation are not liable for warranty.
2.6
Application/Operation
The units (casing and fan) are designed for air extraction from toilets and bathrooms to UK Building Regulations docu-
ment F and BS 7671 for zones 1, 2, and 3. All ELS- fan units fit unmodified in surface mounted casings. If the unit is to
be used in other applications where high humidity, excessive dust, temperature in excess of 40°C or long periods at
standstill (not running), please contact your local Helios dealer for advice. This also applies for special technical and
electrical applications. The fan may only be used according its intended purpose. The complete fan corresponds to
protection IP X5 (jet water-protected), protection class II and is suitable for use in zone 1 of bathrooms.
2.7
Performance
The unit must be installed correctly to achieve the optimum performance. This applies to the installation of the unit, the
ducting and the replacement air supply. If installing in a room where the fan can affect a fuel burning device (e.g. a gas
boiler) which has a balanced flue, it is the installer's responsibility to ensure that there is sufficient replacement air to
prevent fumes being drawn down the flue when the fan is operating at maximum extract rate. Incorrect installation con-
ditions may lead to a reduction in the system performance. Use the largest practical size of ducting with the minimum
number of bends to maintain the minimum system resistance. The catalogue noise levels stated are A-rated sound
power levels LWA (to DIN 45635 T.1). The A-rated sound pressure level LA depends on the acoustic condition in the
room in which it is installed.
References to the ducting system at ventilation systems with common exhaust air duct.
The ventilation system is to be performed according to DIN 18017, T.3. The exhaust air ducts consist of the connecting
duct for the fans and the common exhaust air duct (main line). The duct section above the uppermost fan connection
is called exhaust air duct and is to be led above roof. Exhaust air ducts must be airtight, stable and with more than two
floors from fire-firm material class A according to DIN 4102. The ducting and thermal insulation installed so that no con-
densate damages can occur. Access openings with tight seals are to be attached in sufficient number in such a way
that the exhaust air ducts can be easily cleaned. Threaded access openings are not permissible.
The main line (main riser) is to be led straight, vertical and in continuous cross section. If the main line does not run pos-
sibly perpendicularly, the calculational proof is to be given that the requirements are fulfilled according to DIN 18017,
T.3, section 3.1.3.. With calculation of the main line it is to be presupposed that all fans are operated at the same time
with full capacity. Air dampers are not allowed. The diameter of the main line can be determined with the dimensioning
pattern (of Helios main catalogue). Besides, it is to be noted that with a length of the extract air duct over 1,5 m and a
storey height over 2,75 m increased pressure losses develop, which must be compensated by bigger cross section of
the main line. For dimensioning the Helios ELS software can be used. Available via the Helios website: www.heliosven-
tilatoren.de. Maximum of two fan units per floor may be connected to a single main riser. The exhaust of other rooms of
a flat may not occur via the same fan about which bathroom and toilet are ventilated. Consider minimum bending radi-
us of connecting duct R = DN. Execution and installation of the ventilating system must correspond to the noise trans-
mission regulations in buildings (DIN 4109).
3
Fan-casing-types ELS-GAP / ELS-GAPB
Installation and Operating Instructions
CHAPTER 2
GENERAL INFORMATION
NOTE
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