3
GB
OPERATING MANUAL
KWS, KWS timer, KWS hygro
IMPORTANT NOTICE
Please read the Operating Manual
carefully before attempting to install or
service the fan! Manufacturer shall not
be liable for any damage resulting from
incorrect operation, non-intended use
or unauthorized repair or modifications
of the product. The Operating Manual
and the installation instructions
contained in it are an essential part of
the product equipment. The Operating
Manual specifies important technical
information and instructions for the
operating safety of the fan. Carefully
read the installation instructions in the
Operating Manual. Keep the Operating
Manual available for future reference.
Warnings
Follow all safety regulations and the
safety symbols shown in the Operating
Manual to avoid injury and hazards.
Attention rotating elements!
Safety precautions:
• This product can be used by children at
least 8 years old, by people with impaired
physical and/or mental abilities, and
by people without any experience in or
understanding of the operation of the
product, if supervised or instructed by a
competent adult in the safe use of the
product so that they understand the
relevant operating risks. This product is
not a toy and children should not play
with it. Children should not be allowed to
clean or maintain the product without
supervision of an adult.
• The fan is intended for permanent
installation and connection with the
building electrical system. The building
electrical system connected to the fan
must be capable of breaking live voltage
contact on all switching poles to fully
isolate the fan from power. Category III
overvoltage conditions, in accordance
to applicable electrical engineering
regulations.
• The fan is designed for installation at
a substantial height, i.e. 2.3 m above the
floor. The fan shall only be installed in a
position and an orientation specified
in the Operating Manual, given the
necessary entry of the power cable
into the fan housing.
• Before servicing the fan, isolate it
from the mains voltage with the circuit
breaker. Secure the circuit breaker
against inadvertent operation.
• The fan installation design must prevent
reverse flow of flue gas into the room
from open flue gas exhaust ducts and
appliances operated with open flames.
• Never attempt to modify or alter the fan
without authorization.
• Before installing the fan, verify the
load bearing capacity of the installation
substructure. Improper installation
fastening may result in damage or
failure of the fan and hazards to
the people nearby. The fan can be
hazardous when operated against
its intended use or installed by
unqualified personnel.
Application and operating conditions
• The air exhaust fan is intended for
handling air of normal quality or with a
low dust content (with a particle size <
10 μm) and of low aggressiveness and
humidity. The air exhaust fan is intended
for operation in temperate climate
conditions and within the performance
limits specified in the product catalogue.
• The air exhaust fan may be operated
only in a permanent indoor installation
and with its power supply line concealed.
• The maximum temperature of the
medium handled by the air exhaust fan
and the maximum ambient temperature
are +40°C.
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