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Installation and Operating Instructions
INSTALLATION AND OPERATING INSTRUCTIONS
1.0 Important information
In order to ensure complete and effective operation
and for your own safety, all of the following instruc-
tions should be read carefully and observed.
This document should be regarded as part of the
product and as such should be kept accessible
and durable to ensure the safe operation of the
power supply unit.
These installation instructions cannot take all Instal-
lation, operating and maintenance conditions into
account. You can obtain further information from
your local dealer or the product data sheet, which
can be downloaded on the internet.
1.1 Safety instructions
Special regulations apply for use, con-
nection and operation. Consultation is
required in case of doubt. Further infor-
mation can be found in the relevant stan-
dards and legal texts.
m The following points
observed
before
any
maintenance and installation work:
• Isolate device from the mains power
supply and secure against being swit-
ched on again!
• After switching off, a waiting time of
5 min. must be observed, as dange-
rous voltages may be present after
disconnection from the mains due to
internal capacitors!
• Touching live electrical parts or im-
proper use of this power supply unit
can result in death, serious injuries or
significant material damage.
• All plant-related safety regulations
must be observed! Compliance with
the applicable national regulations
must also be ensured.
1.2 Area of application
This compact, fully encapsulated switching power
supply is solely designed as a decentral
supply for the KWL EC 45 fan series for installation
in a flush-mounted box.
Further information can be found in section 3.0
"Installation".
– Intended use:
The KWL 45 SNU power supply unit is only appro-
ved for fixed installation inside buildings in a flush-
mounted box. The maximum permissible ambient
temperature can be found on the type plate.
– Reasonably foreseeable misuse:
The power supply unit is not suitable for operation
under difficult conditions, such as high levels of
hu- midity, aggressive media, long standstill peri-
ods, heavy contamination, excessive loads due to
clima- tic, technical or electronic influences. The
same ap- plies for the mobile use of power supplies
(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.
– Improper, prohibited use:
Any use other than the intended use is not permitted!
Use in explosive atmospheres is also not permitted!
Switching power supply KWL 45 SNU
1.3 Personnel qualification
m DANGER!
The electrical connection and commissioning
may only be carried out by qualified electrici-
ans. Installation, maintenance and servicing
work may only be carried out by trained spe-
cialists.
EcoVent Verso ventilation units can be used by
children over the age of 8 as well as persons with
physical, sensory, or mental disabilities or lack of
experience and knowledge, if they are supervised or
instructed with regard to the safe use of the unit and
they understand the resulting risks. Children must
not play with the unit. Cleaning or user maintenance
must not be carried out by unsupervised children.
1.4 Scope of delivery
The delivery includes the switching power supply
KWL 45 SNU / Ref. no.: 03008
2.0 Warranty claims – exclusion of liability
If the following instructions are not observed, our
must be
warranty shall be invalidated. The same applies
cleaning,
to liability claims against Helios. The use of ac-
cessory parts, which are not recommended or
offered by Helios, is not permitted. Any possible
damages are not covered by the warranty.
2.1 Regulations – Guidelines
If the product is installed correctly and used to its
intended purpose, it conforms to all applicable
EU guidelines at its date of manufacture.
2.2 Shipping
The power supply unit is packed ex works in
such a way that it is protected against normal
transport strain. Carry out the shipping carefully.
It is recommended to leave the power supply
unit in the original packaging.
2.3 Receipt
The shipment must be checked for damage and
correctness immediately upon delivery. If there is
any damage, promptly report the damage with
the assistance of the transport company. If com-
plaints are not made within the agreed period,
any claims could be lost.
3.0 Installation
- During operation, the power supply unit must
power
not be accessible.
- A suitable flameproof casing must be provided
in the end product.
- The maximum surface temperature at the Tc
point must not be exceeded.
The housing fulfils the requirements of IP 67 and
it is fully protected against dust and penetrating
humidity.
The power supply units are intended for installa-
tion in deep (61 mm) flush-mounted boxes with
a 68 mm diameter (fire resistance according
to DIN EN 60670-1, cavity wall boxes 850 °C,
standard boxes 650 °C).
The connection can be made via the connecting
wires with suitable terminals.
Connecting cables:
Input side:
0.8 mm² (black - white)
with outer casing,
wire end ferrule installed
Output side:
0.52 mm² (black - red)
tin-plated
3.1 Electrical connection / Commissioning
m DANGER
Touching live parts will result in electric shock.
Only connect with no voltage present!
– The electrical connection and initial commissioning
must be carried out in accordance with the relevant
wiring diagrams and may only be carried out by a
certified electrician.
– The relevant standards, safety regulations (e.g. DIN
VDE 0100, EN 50178) as well as the technical con-
nection conditions of energy suppliers must be adhe-
red to!
– An all-pole mains section switch/isolator, with a mini-
mum contact opening of 3 mm (VDE 0700 pt1 7.12.2
/ EN 60335-1) is mandatory!
– The power supply and the supply network must be
sufficiently fused.
– The network connection must comply with IEC 62103,
EN 50178 and IEC 60364, VDE 100
– Network configuration, voltage and frequency must be
consistent with the type plate information.
– The supply line must be introduced, so that no water
can get in along the cable in case of water exposure.
– Never work on the power supply unit when it is live!
There is a risk of electric arcs and electric shock
which can result in death, serious injuries or significant
mate- rial damage.
m Warning:
Dangerous voltages and components with significant
amounts of stored energy may be present during normal
power supply unit operating conditions.
Improper use can result in electrical shock or signifi-
cant burns! Keep away from fire and water!
The power supply unit must be connected according to
wiring diagram SS-1091 (1 unit), or SS-1093 (2 parallel
units) depending on the configuration.
Fig.1
m Attention!
A ferrite is mounted on the output side of the power
supply unit. It is a component of the power supply
unit and it is required to ensure correct functionality.
The ferrite must not be removed.
The input and output lines must be laid separately from
each other (see Fig. 1). The ferrite must be placed with a
distance of approx. 1 cm behind the power supply unit.
Lay the cables without tangles. The lines must not cross
and they must be shortened accordingly.
All wiring terminal points must be used according to DIN
EN 60998.
These must be suitable for a temperature range of 85 °C
and a voltage of 300 V.
Terminal suggestion: Wago type 221
1
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