Tecnoplastic VL Series User manual

TECNOPLAST ITALY Srl Pag.1
CENTRIFUGAL
FANS
VL SERIES
OPERATING MANUAL
TECNOPLAST ITALY SRL –VIA L. MANARA, 13 –20814 LIMBIATE (MB) - ITALY
Tel. [phone] –Fax [phone] –www.tecnoplastonline.it

TECNOPLAST ITALY Srl Pag.2
INDEX
INTRODUCTION ............................................................................................................... 3
USE AND CONSERVATION OF MANUAL............................................................................. 3
DESIGN USE ..................................................................................................................... 4
TECHNICAL DESCRIPTION ................................................................................................. 5
INSTALLATION ................................................................................................................. 6
MECHANICAL CONNECTION.........................................................................................................................6
ELECTRIC CONNECTION...............................................................................................................................6
TROUBLESHOOTING......................................................................................................... 8
NO SUCTION .........................................................................................................................................8
INSUFFICIENT SUCTION ........................................................................................................................8
LOUDNESS ............................................................................................................................................8
MOTOR HALT ........................................................................................................................................8
STRUCTURES AND ACCESS................................................................................................ 9
HANDLING AND LIFTING................................................................................................... 9
MAINTENANCE ................................................................................................................ 9
INFORMATION ON RESIDUE DANGERS AND EMERGENCY SITUATIONS ............................ 10
Stability...........................................................................................................................................10
Risks due to surfaces, angles and edges.........................................................................................10
Risks due to assembling errors .......................................................................................................10
Fire risks..........................................................................................................................................10
Fall risk............................................................................................................................................10
ASSEMBLING AND DISASSEMBLING................................................................................ 10
SPARE PARTS AND ORDER PROCEDURE .......................................................................... 11
DEMOLITION.................................................................................................................. 11

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INTRODUCTION
The “Machines Direction”, 2006/42/CE, and the harmonized standards EN ISO 12100-1 / EN
ISO 12100-2, EN ISO 13857, 91/368/CEE, foresee that any device put on the European
market should be completed with “Use and Maintenance” manual .
The manufacturer must guarantee the safety base qualifications of its devices put on the
market in the following cases:
When the machine is used in conformity with the projected use of the manufacturer
When the installation, the use and maintenance occurs in accordance to the
destination of the machine and the supplied instructions
In case of malfunctioning and predictable dangers.
With terms “use instructions”, is intended any means of communication containing
instructions relative to transport, handling and lifting, start-up operations, technical
characteristics, use, maintenance, residual risks information, etc…
In the spirit of Machines Direction and with the help of this manual, Company TECNOPLAST
Italy Srl intends to transfer to the user-customer all the needed information to define the
“projected use of the machine” and then the use for which the manufacturer guarantees
that the machine placed on the market respects all the concerning necessary safety
qualifications.
USE AND CONSERVATION OF MANUAL
The instruction manual is directed to anybody that, at any level (owner, responsible,
employed), must manage, of the machine produced and put on the market, operation as
handling, installation, set-up, use, overseeing, maintenance, breakup etc…
The manual is intended to indicate the use of the machine foresee in project, the technical
characteristics, supply instructions for transportation, movement, installation, assembling,
tuning and use, direct the maintenance scheduling, give information on residual risks, etc.
During binding operations and/or installation specifications, setup, maintenance, etc.,
assigned to professional personnel, the manual is only a fast reference, with the indications
of the main operations and cannot substitute the worker’s experience (he could adopt
different, but suitable actions)
The instruction manual has to be considered part of the fan and must be preserved for
future reference until the dismantling of the equipment.
The instruction manual must be rapidly available for consultation. It must be kept near the
fan and in a protected place to avoid deterioration. In case of loss or damage, the user can
ask for a copy to the manufacturer.
The manual reflects the state of technology at the moment of commercialization and cannot
be considered inadequate if upgrade or modifications occurs since then.
The manufacturer retains the rights to modify the production and the manuals without
notice.
TECNOPLAST Italy Srl is at disposal to satisfy the customer’s requirements for any
information and will keep in consideration eventual suggestions to improve the manual.

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In case of sell of the equipment, the user is asked to signal to the manufacturer the address
of the new owner, so to ease the transmission of manual’s upgrades in case of events when
the manufacturer is raised by eventual responsibility, as:
a) improper use;
b) uncorrected installation;
c) feeding defects;
d) missing maintenance;
e) modification or unauthorized intervention;
f) use of not original or not suitable spare parts;
g) total or partial inobservance of given instructions;
h) exceptional events, etc.
Do not put the fan into operation as long as uncertainties exist.
With the commissioning of the fan you confirm that you have read and understood
the operating manual.
WARRANTY
The warranty ends on the date stated in the general terms of sale and delivery.
Warranty is limited to the delivery of spare parts or the repair of defective parts in
the manufacturer’s works. Any further claims or the replacement of expandable
items or of items subject to normal wear and tear are excluded.
We guarantee the availability of spare parts identical in construction to the original
over a period of 1 year effective from the date of delivery.
Tecnoplast Italy Srl only guarantees the stability of materials under the condition
that technological data was available before production.
Any change in the conditions of use is only permissible after approval by Tecnoplast
Italy; otherwise this entails the loss of warranty.
Any changes or repair work during the warranty period may only be made with our
written consent.
We refer to the limitation of warranty in the case where a frequency converter
supplied by a third party is used.
SAFETY REVIEW
After having installed the fan, we recommend checking out the entire operating
situation by means of a risk analysis. In this way it can be guaranteed that neither
the fan suffers damage nor that the fan causes any damage. Please make a record of
this review in a report.

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DESIGN USE
The centrifugal fans series VL are designed and manufactured to extract air from any kind of
industrial environment.
Their use is necessary where an exhausting system is required, particularly when corrosive
or aggressive substances are present, because the construction materials of the components
in contact with the fluids are PP (polypropylene), a material that is resistant to a wide range
of chemicals or compounds.
The maximum operative temperature cannot be over 70º C for.
It is not recommended to use this kind of fans with solvents or with higher temperatures.
Ask however to TECNOPLAST Italy in case of variations of the operative conditions than
discussed during offer and order to check the effective reliability of the equipment
After installation, the device working is automatic, thanks to remote connection with
switches and doesn’t need intervention, with the exception for ordinary and extraordinary
maintenance operations explained later in the manual. (page 12)
The electric installation must obligatorily include the standard protection for the motor.
It is recommended to use protection grills or nets on the suction points, to avoid the
entrance of external bodies as rags or other objects that can cause damage the fan when in
contact with the moving impeller.
The installation of the fans with solutions and fittings parts different to what indicated, raise
the manufacturer from any responsibility about their inefficiency in case of damaging events
as meteorological (rainstorms, hail, wind, etc…) and should be verified and evaluated by
expert installers.
The fan is not suitable for the transport of solids in the air flow. This operating mode will
lead to the destruction of the fan.
The ducts on the intake and delivery sides must always be open. A closed duct will lead to a
rise in temperature which could cause the destruction of the fan.
The minimum air speed through the fan is 5 meters per second.
DUE TO THE SPCIFICAL USE OF THE DEVICES PUT ON THE MARKET, ANY DIFFERENT USE
THAN DISCUSSED DURING OFFER AND ORDER PHASES –IF NOT AUTHORIZED OR
SUGGESTED EXPRESSIVELY BY THE MANUFACTURER –IS CONSIDERED UNPROPER AND RAISE
THE COMPANY TECNOPLAST Italy Srl BY ANY OBLIGATION OF ASSISTANCE, OTHER THAN THE
RESPONSIBILITY FOR THE CONNECTED RISKS.
TECHNICAL DESCRIPTION
1. BASE FRAME in painted carbon steel with epoxy lining and belt stretcher
2. BOLTS for motor fixing on base frame, in stainless steel
3. ELECTRIC MOTOR three-phase series UNEL-MEC protection IP55, squirrel cage rotor,
external cooling, class F, voltage V230/400 and frequency 50/60Hz, simple o double
polarity.
4. NUTS for motor fixing on Casing Support Plate, stainless steel
5. CASING SUPPORT Plate, PP
6. Casing GASKET
7. IMPELLER centrifugal, backward blades, dynamically balanced, PP
8. FASTENER SCREW impeller on motor shaft
9. Ogive GASKET, in EPDM

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10. OGIVE for impeller hub protection
11. CASING in PVC or PP, can be partially or totally covered with resin fiberglass
12. Casing GASKET
13. NUTS for inlet fixing on casing
14. INLET
INSTALLATION
Mechanical Connection
The fan can be located either inside or outside the exhausted room. It must be fixed
through the base frame holes on roof or a concrete basement appropriately sized to
support the fan weight
After fixing, verify the stability and planarity of the fan.
The connection between the inlet and the outlet of the fan with the ducts should
include flexible antivibration joints, better if flanged. These ducts should be
appropriately fixed to avoid load on the fan.
It is recommended to use antivibration mountings under the base frame.
The expulsion fitting MUST HAVE a net for birds, so the aspiration side in case of
working with free inlet (i.e. Atmosphere aspiration for room ventilation).
IN CASE OF INSTALLATION IN AREAS WITH PEOPLE PASSAGE, A RIGID PROTECTION
ON THE CASING IS RECOMMENDED, TO AVOID DAMAGES IN CASE OF
MALFUNCTIONS OR ACCIDENTAL BREAKAGES
Electric Connection
The control panel will be equipped of thermal-magnet protection to preserve the
motor and a differential switch to protect the operators in case of ground dispersion.
Near the fan will be installed a switch to be used during maintenance period. Turning
on the fan briefly, check the rotation sense, comparing it with the arrow on the fan. In
case of wrong rotation, invert two phases.
When any work is done on the fan, the electric drive is to be isolated from the
electrical supply and it is to be made sure that it cannot be reconnected. The main
power switch has to be secured against operation by third parties using a lockable
device (e.g. padlock) by the persons working on the fan. The full disconnection of the
motor is only permissible in case of complete removal!
The safety regulations for work on electrical equipment in effect at the place of
operation must be observed at all times and be available at the place of operation.
ATTENTION: if the impeller rotation is wrong, the fan exhausts but, having to win
bigger resistance, with less efficiency and more current absorption, there is a motor
damage risk.
During the electrical connection the elementary safety rules must be followed
carefully and the cables must be without voltage.
Turn-on the fan from a safety position against the impeller and the other moving
parts; be sure that no device or equipment is in contact with the impeller.
In case of wrong rotation, before invert the phases as above described, turn-off the
fan.

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Inspection of the installation and settings
Check list:
Prior to commissioning and initial start-up, it must be guaranteed that:
the fan is installed vibration-free and mechanically secured,
all components are cleaned both on the inside and outside and are free from
foreign bodies,
all intake and delivery ducts are connected in a leak-proof and elastic
manner,
all rotating parts are protected against unintentional contact,
the electrical connections are installed and their function tested,
a lockable main control switch is available to which the fan is connected,
the EMERGENCY-STOP equipment is functionally tested,
the safety inspector has made sure that safety equipment exists,
the operating personnel is familiar with the operating manual,
the safety inspector has given his approval for the operation of the
installation and that external persons are present in the plant area.

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TROUBLESHOOTING
NO SUCTION
CAUSE
SOLUTION
Fan turned-off
Check the connection and turn-on the fan
Inlet obstructed
Remove the obstacle
Outlet obstructed
Remove the obstacle
Electrical protection or thermal-switch
intervention
Verify the electrical connection and re-arm
the protection
INSUFFICIENT SUCTION
CAUSE
SOLUTION
Inlet partially obstructed
Remove the obstacle
Outlet partially obstructed
Remove the obstacle
Wrong rotation of the impeller
Invert two phases in the motor panel
Piping breakage
Repair the pipe damage (call TECNOPLAST
Italy Srl)
LOUDNESS
CAUSE
SOLUTION
Impeller unbalanced
Call TECNOPLAST Italy Srl
Motor bearings used up
Call TECNOPLAST Italy Srl or substitute the
bearings
MOTOR HALT
CAUSE
SOLUTION
Electric motor short-circuit
Call TECNOPLAST Italy Srl
Motor bearings blocked
Call TECNOPLAST Italy Srl or substitute the
bearings
Wrong thermal-switch setup
Call an electrical technician to reset the
thermal-switch setup
Differential switch turns of
Verify the electrical connection and re-arm
the protection
No current on service socket
Verify the fuses and substitute if damaged

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STRUCTURES AND ACCESS
When maintenance is required on fans installed on roofs or metal structure, verify their
resistance to operator weight and that they are equipped with the safety characteristics
foreseen. Always consult preliminarily the constructions responsible and follow the rules
indicated. Evaluate if the intervention needs the safer use of lifting machines (cranes,
scaffolds, etc…).
The maintenance on TECNOPLAST Italy fans must be performed on turned-off machine (use
the switch previously installed near the fan)
The machine tampering or the wrong assembling, performed by not specialized or
unauthorized technicians, exclude the Vendor from any responsibility for related damages to
persons or things.
HANDLING AND LIFTING
Fan handling and lifting are operations to be performed carefully and by expert personnel.
Handling can be made using elevator trolleys or transpallett according to weight and
dimensions
The lifting points are two anchorage plates on the back of the base frame.
It is recommended to use suitable belts or chains and to check the connection to the fan
plates.
MAINTENANCE
Centrifugal fans series VL are designed and realized to last in time in full efficiency, without
repetitive maintenance operations. The construction materials guarantee the maximum
resistance also in continuos working conditions and long exposition to atmosphere agents or
unhealthy environments.
However it is recommended to check periodically, with frequency due to environmental
conditions and to substance nature (once per year or twice if the conditions are particularly
critics):
The impeller cleaning, that must be kept high to avoid unbalancing
The bearings status that can be damaged if the impeller isn’t kept dinamically balanced.
ATTENTION: the bearings are shielded and do not require greasing. It is recommended
the substitution every 20.000 working hours (on two poles motor) or 40.000 (on four
poles motor) and however every two years.
The anchorage devices (check them particularly in places where atmospheric agents are
tight; i.e. winds, rainstorms, snow)
The electrical cables, connections, especially outside
The switch near the fan, very important in case of emergency
The piping conditions, especially near the fan inlet and outlet
Must be precise that any time that operation on electrical connection are performed, must
be verified the rotation sense of the impeller, also indicated on the motor

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INFORMATION ON RESIDUE DANGERS AND EMERGENCY SITUATIONS
Big attention is dedicated during design, production and delivery of any equipment, to point
and prevent any possible risk for operator’s health.
It is inevitable the presence of residual risks not foreseeable through design or protection
devices, or potential and not apparent dangers. Here is a brief list of the most significant .
Stability
Shapes, materials and anchorage structures are designed to guarantee
maximum stability when adverse meteorological conditions occur –wind, snow,
hail. Avoid to overload the external parts with foreign bodies, to not
compromise stiffness and strength, or cause breakage or deformations.
Risks due to surfaces, angles and edges
Being realized having care to round off any angle and edge, some equipment
parts could cause injuries or abrasions in case of impact or rubbing. During
manual movement it is recommended to wear protection gloves.
Risks due to assembling errors
The present instruction manual is thought to ease and make safer the
assembling and start-up operations. It is recommended to read it carefully
because malfunctioning, breaks, accidents can derive by their underestimation.
In case of doubt read again the interested parts or consult directly the
TECNOPLAST Italy Srl technical personnel.
Fire risks
The equipment is designed and produced to avoid any fire risk or overheating
caused by itself. Being partially realized in plastic material –inflammable, if not
self-extinguish version -, some elementary fire-proof cautions must be taken.
Avoid to install the equipment near heat sources and to produce flames
(oxyhydrogen torch or matches and cigarettes) in proximity of it. Check the
electric connections quality to prevent sparks and discharges.
Fall risk
Fans can be located on roofs, metallic or cement structures. The fall risk is
always present during shifting, lifting, positioning, installation and maintenance
and cautions must be always taken.
ASSEMBLING AND DISASSEMBLING
With reference to the exploded fan view, the disassembling must be executed with this
procedure.
1. IMPELLER SUBSTITUTION OR CLEANING
a) Disconnect ducts
b) Disconnect electrically the motor (3)
c) Unscrew the casing fixing nuts (13)

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d) Remove the casing (11)
e) Unscrew the ogive (10)
f) Remove O-Ring gasket (9)
g) Unscrew motor fixing screw (8)
h) Extract the impeller (7)
2. MOTOR DISMANTLING FOR MAINTENANCE OR SUBSITUTION
a) Disconnect ducts
b) Disconnect electrically the motor (3)
c) Unscrew the casing fixing nuts (13)
d) Remove the casing (11)
e) Unscrew the ogive (10)
f) Remove O-Ring gasket (9)
g) Unscrew motor fixing screw (8)
h) Extract the impeller (7)
i) Unscrew motor fixing screws (2)
The assembling follows the reverse order.
SPARE PARTS AND ORDER PROCEDURE
The spare parts are listed in the fan exploded view.
To order them is necessary name the fan’s serial number and year of supply, over to the list
of the needed components with their identification number.
Through the use of inappropriate materials, the fan and/or parts of it can be damaged or
become non-operable. Please always use original spare parts and contact the manufacturer
in any case of doubt.
DEMOLITION
Disconnect electrically the motor
Dismantle the fan (pag.12)
Remove the motor
Demolish the plastic parts
Differentiate the materials separating into homogeneous groups, and deliver to specific
containers for steel, stainless steel, plastic.