Datasheet

ENGLISH
calculatedwithouttheriskofburningthemotorastheyinherentlydonotsignificantlyincreasetheflowratewhenthecircuitresi
stance is reduced. These fans draw the maximum power when they approach the highest performance value. It is recommended
to install on the circuit a regulating shutter, to be set up when starting the system. For further information, please read the technical
catalogues.
AXIAL FANS
Axialfansfeatureanaxialairflowina“crossflow”configuration.Theirperformanceissuitableformediumorhighairflowsand
for medium or high pressures. The performance of each fan is shown in the technical catalogues. The range of axial fans includes
standard versions, suitable to handle clean or slightly dusty air with a temperature between -20°C and +40°C, or special versions.
Such features are described in the technical catalogues and in the enclosed technical datasheet, which must be consulted to
identifythesuitabilityofthefantohandlethefluidtreatedbytheplantwherethefanwillbeinstalled.Basedontheirconstruction,
they can essentially be divided in two types:
Ducted axial fan: consisting of an impeller and a motor mounted in a cylindrical casing; the fan is driven directly from the motor
(direct coupling) or by means of pulleys and belts (indirect coupling)
Wall-mounted axial fan: with directly coupled impeller and motor mounted on a panel or ring.
For further information, please consult the technical catalogues.
3. GENERAL SAFETY WARNINGS
ASSESSING SAFETY CONDITIONS
The fans can be installed in 4 different working conditions:
• AWithfreeinletandoutlet(notducted)
• Bfreeinletandductedoutlet
• Cductedinletandfreeoutlet
• Dductedinletandoutlet
SAFETY NETS
WARNING:Themanufacturercannotknowthetypeoffinalinstallationandthereforesuppliestheguards(forinletand/
oroutlet)oncustomer’srequest,whoisresponsibleforassessingthesystemsafeconditions.Shouldothertypesof
guardsberequired,thefinalinstaller,orwhoeveractsonhisbehalf,mustcarryoutariskassessmentspecificallyrelated
to the type of installation required and therefore insert the suitable safety systems according to the type of application.
In order to ensure full compliance with Machine Directive 2006/42/EC these systems must be well built, in order to avoid
anyriskofinjuryandmustbefixedsecurelybyrequiringaspecialtooltoremovethem.
Theprovisionofsafetynetschangestheaeraulicefficiencyofthefan:alllossesofload,includingthosegeneratedbythesafety
nets or by other accessories, must be assessed at the design stage according to the speed, the air density, the temperature and
all other issues which contribute to change their impact in the system.
Boththefinaluserandtheinstallermusttakeintoaccountothertypesofrisks,morespecificallythosecausedbyforeignbodies
entering the fan, or by mixtures different from those allowed. It is also necessary to take into account other risks during the routine
and unscheduled maintenance operations, which must be carried out safely, by disconnecting or isolating the motor power supply,
withsuitablesafetydevicesandwithotherprecautionsspecifiedinmoredetailsinthefollowingsections,whichlistthesafety
warnings and maintenance sections.
WARNING! Fitting safety nets does not fully avoid foreign bodies from entering the fan. If hazardous bodies or particles
should get mixed up with the treated air, the user must carry out a full risk assessment able to identify their possible dimensions;
if the diameter of the standard safety net is not enough to ensure the minimum safety requirements, the user must take all the
precautionary measures required to avoid any residual risk.
WARNING:Periodicallychecktheefficiencyoftheguards;shouldtheybecomefaultyortoowornwhichcouldnegative
ly affect their operation, they must be replaced. After the installation, all the main technical features of the fan must be checked
(that the guards have not been removed and/or damaged and/or changed) and, if necessary, a global risk assessment for the fan
in relation to its application.
RISKS CAUSED BY IMPROPER USES
Do not insert your hands or other parts of the body near moving parts•
Do not insert your hands or other parts of the body beyond the guards•
Do not remove, dispose of or change the guards•
Do not remove, dispose of or change any monitoring devices•
Donotusethefaninenvironmentsdifferentfromthosespecified•
Unauthorised operators are not allowed to carry out any kind of operation on the fan•
Reset the safety systems before restarting the fan after carrying out operations which required their removal.•
Make sure that all safety devices are in full working order•
Makesureallthesafetyandinformationplatesfittedonthefanareingoodconditions•
Securely tighten all drives or adjusting screws•
The staff who carries out any operation on the fan must use the required PPE•
Do not use loose clothing•
Donottouchfansusedtohandlehightemperaturefluids.•
FAN INHERENT RISKS
Dragging by moving parts•
Dragging by the fan inlet•
Violent ejection of an object entered in the fan through the outlet•
Risk of burns or scalding caused by very hot outer surfaces of the fan.•
Risk of breakages for: Too many vibrations•
Pag. 14