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3
Safety instructions
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KONČAR-MES axial and centrifugal fans are produced in accordance with the latest
technical standards and our quality assurance program which includes material and function
tests ensures that the final product is of a high quality and durability. Never the less these
fans can be dangerous if they are not used and installed correctly, according to the
instructions.
•
Put the fan and other components to use only after they have been securely mounted and
fitted with protection guards to unit application (suitable guards can be supplied upon
request).
•
Installation, electrical wiring, maintenance only by qualified engineers.
•
The fan must be operated only in accordance with the performance data ( Data plate) and
the approved medium passing through.
3.1.
General safety instructions
Before installing and operating this fan please read this instructions carefully!
Axial and Centrifugal fans with standard motor are suitable for ventilation of - clean air, -
slightly dusty and greasy air, - slightly aggressive gases and vapor - mediums up to an
atmospheric density of 1.3 kg/m3, - mediums with a temperature of -30
°C up to +80°C, -
mediums up to a max. humidity of 95%.
Lower temperature till -
50°C possible-see fan
name plate.
- The ambient temperature must be between -3
0°C and +60°C. For fans design for ambient
temp. below -
30°C it is
nessesery
to ensure every day raning period
– work of fans at least
15 minuts. if the fan is design for low temperature till -50
°C- see fan name plate.
Make sure and adhere to the specifications of the motor manufacturer.
The following workplace safety instructions must be adhered to at all times:
•
The fan has been designed and produced according to the latest state of technology. If the instructions
in this manual are adhered to, the fan is a safe device. Improper operation, or use for purposes other
than those intended might endanger persons and property and lead to damage of the unit.
•
These instructions are binding for all persons involved in the installation, dismantling and assembly,
commissioning operation, maintenance (inspection, servicing and repair) of the unit at the operator
’s
premises. All persons involved in the above work must read the entire manual. We recommend that
the operator requests staff to sign a declaration to this fact.
•
Proper use is defined in this manual. If any other use is performed, producer of this fan denies any
responsibility for caused damage on property or people.
•
Operator must ensure that personnel for each aspect of fan servicing is fully defined so there is no
confusion in safety related issues.
•
When works are executed, the entire unit must be shutdown and the power plug must be
disconnected.
•
Unauthorized modifications and extensions to the fan are not permitted as they might affect its
functions and safety.
•
It is prohibited to remove any safety signs, symbols and plates.
•
Prior to restarting the unit after maintenance, inspect all safety devices.
3.2.
Electrical requirements and instructions regarding project planning, design and
application
•
When selecting a motor based on its performance, note that the load torque of fan follows a square
curve.
•
When selecting an option for switching on the fan, the initial mass moment of inertia must be taken into
account.
•
If the motors are operated at temperatures that are above the permitted level, the ratio between
permitted motor power and rated power is reduced. This also applies to units installed higher than
1000 m above sea level. In this case, contact the fan manufacturer for advice.
•
When two speed motors are used, ensure smooth changing between speeds
•
After prolonged standstill, prior to switching on, inspect insulation resistance. Damp windings must be
dried with hot air.
•
Unused openings in the terminal box should be sealed with weatherproofed plugs or grommets
•
The cable entry points into the terminal box must be threaded through a gland assembly, and the gland
assembly should be tightened enough to hold the cable and provide a weatherproof seal.
