Elektror CF Series Repair manual

Elektror airsystems Sp. z o.o.
ul. Lesna 38
41-506 Chorzów
Elektror airsystems Sp. z o.o.
ul. Lesna 38
41-506 Chorzów
CFL1, CFL2, CFM1, CFM2, CFH1, CFH2, CFH3, CFXH, CFXH1, CFXH2, CFLD, CFLD1,
CFMT, CFMT1, CFMT2, CFM1D, CFH1D
CF
Radial fan
Clutch drive C
Translation of the
original operating
manual
EN

Legal notice Operating manual - Fan CF-C
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EN Legal notice
2018 by
Elektror airsystems Sp. z o.o.
Contact Information
If case of any questions, ambiguities or suggestions for improvement, please contact the
customer service of the manufacturer's plant:
Elektror airsystems Sp. z o.o.
ul. Lesna
38
41
-506 Chorzów
Phone:
[phone]
Telefax:
[phone]
e-mail:
[email protected]
Rights to the Operating Manual
With regard to the rights to the Operating Manual, its use is permitted by the manufacturer for
fan operation only. The manufacturer does not allow transferring the content of this Operating
Manual to third parties via corporate and over
-corporate network. Any other use of the
Operating Manual, in a manner not mentioned in the manual, requires obtaining approval from
the manufacturer.

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EN
Table of contents
Legal notice........................................................................................................................ 2
1Introduction................................................................................................................. 9
1.1 Important information about the Operating Manual........................................................9
1.2 Liability..........................................................................................................................9
1.3 Short description of the fan ...........................................................................................9
1.4 Use in a manner consistent with the intended use.......................................................10
1.4.1 Fan according to Directive 2014/34/UE ...................................................................10
1.4.2 Limits of fan use according to Directive 2014/34/UE................................................10
1.4.3 Operating conditions................................................................................................10
1.5 Predictable uses in a manner inconsistent with the intended use ................................10
1.6 Necessary qualifications to operate the fan .................................................................11
2Safety rules ............................................................................................................... 12
2.1 Symbols contained in the operating manual ................................................................12
2.1.1 Information ..............................................................................................................12
2.1.2 Warnings .................................................................................................................13
2.1.3 Safety signs.............................................................................................................14
2.1.3.1 Warning signs..........................................................................................................14
2.1.3.2 Prohibition signs ......................................................................................................14
2.1.3.3 Mandatory signs ......................................................................................................15
2.1.3.4 Symbols, indicating hazardous materials and the rules for their disposal.................15
2.2 Information plates on the fan.......................................................................................15
2.3 Fan safety systems .....................................................................................................17
2.3.1 Protective measures separating persons from the device........................................17
2.3.2 Protection of electrical components .........................................................................18
2.3.3 Information and markings ........................................................................................18
2.4 Overview of residual risk .............................................................................................19
2.5 Basic safety rules ........................................................................................................19
3Description ................................................................................................................ 21
3.1 Impeller .......................................................................................................................22
3.2 Housing.......................................................................................................................22
3.2.1 Inspection opening ..................................................................................................22
3.2.2 Condensate drain pipe ............................................................................................22
3.3 Hub seal......................................................................................................................23
3.3.1 Standard seal (temperature range up to +120 °C) ...................................................23
3.3.2 Standard seal (temperature range up to +300 °C) ...................................................23
3.3.3 Hub seal with graphite ring ......................................................................................23
3.3.4 Hub seal with a special ring .....................................................................................24
3.4 Console with frame .....................................................................................................24
3.5 Cooling disk ................................................................................................................24
3.6 Electric motor (drive motor) .........................................................................................24
3.7 Bearings......................................................................................................................25
3.7.1 Housing of several bearings (bearing block) ............................................................25
3.7.2 Single pedestal bearing ...........................................................................................25
3.8 Clutch..........................................................................................................................25
3.9 Connections ................................................................................................................25

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3.10 Accessories.................................................................................................................25
3.10.1 Compensators .........................................................................................................25
3.10.2 Vibration isolators ....................................................................................................26
4Technical specifications...........................................................................................26
4.1 Nameplate – Identification ...........................................................................................26
4.1.1 Marking according to Directive 2014/34/EU .............................................................26
4.1.2 Markings on the fan .................................................................................................26
4.2 Emissions....................................................................................................................27
5Transport and storage ..............................................................................................27
5.1 Safety rules .................................................................................................................27
5.2 Personal protective equipment ....................................................................................27
5.3 Special tools, equipment and material .........................................................................28
5.4 Activities and qualifications..........................................................................................28
5.5 Fan transport...............................................................................................................28
5.6 Packaging ...................................................................................................................31
5.7 Quality control of deliveries – transport damages ........................................................32
5.8 Fan storage.................................................................................................................32
6Mounting, installation and connection....................................................................33
6.1 Safety rules .................................................................................................................33
6.2 Personal protective equipment ....................................................................................34
6.3 Special tools, equipment and material .........................................................................34
6.4 Activities and qualifications..........................................................................................34
6.5 Installation and assembly of the fan ............................................................................35
6.5.1 Mounting conditions.................................................................................................35
6.5.2 Installation location ..................................................................................................36
6.5.2.1 Mounting..................................................................................................................36
6.5.2.2 Bolted connections ..................................................................................................39
6.5.2.3 Connection of pipes.................................................................................................40
6.6 Connection of power media.........................................................................................40
6.6.1 Connection to the electricity mains ..........................................................................40
6.6.2 Earthing ...................................................................................................................41
6.6.3 Connection of monitoring devices ............................................................................41
6.6.3.1 Temperature monitoring ..........................................................................................41
6.6.3.2 Rotation speed monitoring.......................................................................................41
6.6.3.3 Vibration monitoring.................................................................................................42
6.6.4 Connection of the system of hub sealing with gas barrier ........................................42
6.7 General inspections and testing ..................................................................................42
6.7.1 Checking the gap.....................................................................................................43
6.7.2 Checking the gap.....................................................................................................44
6.7.2.1 Impeller with intake nozzle.......................................................................................44
6.7.2.2 Impeller with inlet cone ............................................................................................45
6.7.2.3 Impeller with cone....................................................................................................46
6.7.3 Installation of compensators ....................................................................................46
6.7.4 Clutch ......................................................................................................................47
7Commissioning .........................................................................................................48
7.1 Personal protective equipment ....................................................................................48
7.2 Activities and qualifications..........................................................................................49

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7.3 Installation and assembly of the fan ............................................................................49
7.3.1 Test run ...................................................................................................................49
7.3.2 Rotation direction control .........................................................................................49
7.3.3 Switching the wrong direction of rotation .................................................................50
7.3.4 Installation and assembly of the fan.........................................................................50
7.3.4.1 Start-up after direct connection................................................................................51
7.3.4.2 Start-up in the case of a star-delta connection.........................................................51
7.3.4.3 Avoiding high, peak torque values in test run...........................................................51
7.3.4.4 Operation of a fan with frequency converter ............................................................51
7.3.5 Shutting down the fan..............................................................................................51
8Operation of the fan.................................................................................................. 52
8.1 Safety rules .................................................................................................................52
8.2 Personal protective equipment ....................................................................................52
8.3 Activities and qualifications .........................................................................................53
8.4 Behaviour of the fan during operation..........................................................................53
8.5 Emergency shutdown of the fan ..................................................................................54
8.6 Automatic operation of the fan.....................................................................................54
8.6.1 Rotational speed control by means of a frequency converter...................................54
8.6.2 Natural frequency of the fan ....................................................................................55
8.6.3 Parameterisation of the frequency converter ...........................................................55
8.6.4 Adjustment range of rotational speed ......................................................................55
8.7 Disturbances, error search and troubleshooting ..........................................................55
8.7.1 Searching for errors.................................................................................................55
8.7.2 Troubleshooting.......................................................................................................56
8.7.3 Disturbances ...........................................................................................................56
8.7.3.1 Disturbances of bearing system...............................................................................57
8.7.3.2 Clutch disturbances .................................................................................................57
8.8 Maintenance ...............................................................................................................58
8.8.1 Before the start of maintenance work ......................................................................58
8.8.2 Cleaning of the fan. .................................................................................................58
8.8.3 Fan maintenance.....................................................................................................59
8.8.4 Maintenance schedule.............................................................................................60
8.8.5 Lubrication of the fan ...............................................................................................65
8.8.5.1 Special tools, equipment and materials ...................................................................65
8.8.5.2 Lubricants................................................................................................................65
8.8.5.3 Symbols in lubrication schedules.............................................................................65
8.8.5.4 Lubrication schedule (Fan with bearing block) .........................................................66
8.8.5.5 Lubrication schedule (Fan with single pedestal bearing)..........................................68
8.8.5.6 Maintenance of rolling bearings ...............................................................................70
8.8.5.7 Notes on lubrication intervals...................................................................................70
8.8.5.8 Lubricants data........................................................................................................71
8.8.6 After maintenance activities.....................................................................................71
8.9 Repair .........................................................................................................................71
8.9.1 Performing repairs ...................................................................................................71
8.9.2 Repairs of the fan ....................................................................................................73
8.9.3 Spare Parts .............................................................................................................74
8.9.4 Impeller replacement ...............................................................................................74
9De-commissioning of the fan................................................................................... 76

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9.1 Safety rules .................................................................................................................77
9.2 Personal protective equipment ....................................................................................77
9.3 Special tools, equipment and material .........................................................................77
9.4 Activities and qualifications..........................................................................................77
9.5 De-commissioning of the fan .......................................................................................77
10 Dismantling................................................................................................................78
10.1 Safety rules .................................................................................................................78
10.2 Personal protective equipment ....................................................................................79
10.3 Special tools, equipment and material .........................................................................79
10.4 Activities and qualifications..........................................................................................79
10.5 Dismantling of the fan..................................................................................................79
10.5.1 Disposal (scope of application: EU Member States) ................................................80
10.5.2 Disposal (scope of application: countries other than EU Member States) ................81
11 Annex .........................................................................................................................81
11.1 Tightening torques for fastening bolts..........................................................................81
11.2 Limit values of vibrations .............................................................................................82
11.3 Limit values for storage temperatures .........................................................................83
12 Declaration of incorporation according to Annex II 1 A
Declaration of conformity according to EVPG § 4 passage 1 ...............................84

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List of tables
Table 1: List of abbreviations...........................................................................................................8
Table 2: Markings on the fan (examples).......................................................................................16
Table 3: Overview of residual risk..................................................................................................19
Table 4: Main components of the fan.............................................................................................21
Table 5: Transport – Activities and qualifications...........................................................................28
Table 6: Installation – Activities and qualifications .........................................................................34
Table 7: General inspections and testing.......................................................................................42
Table 8: Minimum gap width – impeller with intake nozzle.............................................................44
Table 9: Minimum gap width – impeller with inlet cone ..................................................................45
Table 10: Minimum gap width – impeller with cone (ATEX) ...........................................................46
Table 11: Indicative values of the permissible shaft displacement and gap dimensions ................48
Table 12: Commissioning – Activities and qualifications ................................................................49
Table 13: Fan operation – Activities and qualifications ..................................................................53
Table 14: Fans according to Directive 2014/34/UE – Activities and qualifications..........................53
Table 15: Rate of change of the rotational speed (Frequency converter ramp time) ......................55
Table 16: Disturbances of fan operation ........................................................................................56
Table 17: Disturbances of bearing system.....................................................................................57
Table 18: Clutch disturbances .......................................................................................................57
Table 19: Maintenance schedule...................................................................................................60
Table 20: Special tools, equipment and materials..........................................................................65
Table 21: Explanation of symbols in lubrication schedules ............................................................65
Table 22: Lubrication intervals and grease quantities for bearing blocks .......................................67
Table 23: Lubrication intervals and grease quantities for pedestal bearings ..................................69
Table 24: Change of relubrication intervals....................................................................................70
Table 25: Lubricant........................................................................................................................71
Table 26: De-commissioning – Activities and qualifications ...........................................................77
Table 27: Dismantling – Activities and qualifications......................................................................79
Table 28: Limit values of vibrations according to ISO 14694 .........................................................82
Table 29: Limit values of vibrations according to DIN ISO 10816-3 ...............................................82

List of abbreviations Operating manual - Fan CF-C
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EN List of abbreviations
Table 1: List of abbreviations
Abbreviation Explanation
ArbSchG Arbeitsschutzgesetz
Labour Protection Act
ASR Technische Regel für Arbeitsstätten
Technical rules for the workplace
ATEX Atmosphère Explosibles, Directive 2014/34/EU
BGV Berufsgenossenschaftliche Vorschrift
Provision issued by a professional association
BetrSichV Betriebssicherheitsverordnung
Regulation on work safety
BGI Berufsgenossenschaftliche Information
Information issued by a professional association
BGR Berufsgenossenschaftliche Regeln
Rules issued by a professional association
BGV Berufsgenossenschaftliche Vorschrift
Provision issued by a professional association
CE Conformité Européenne (European standardization)
DGUV Deutsche Gesetzliche Unfallversicherung
German statutory accident insurance
EMF Elektromagnetische Felder
Electromagnetic fields
EMV Elektromagnetische Verträglichkeit
Electromagnetic compatibility
EX Explosion
Explosion
LpA Messflächenschalldruckpegel
Sound pressure level on the measuring surface
PSA Personal protective equipment
TRBS Technische Regel für Betriebssicherheit
Technical rules for work safety

Operating manual - Fan CF-C Introduction
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EN
1 Introduction
1.1 Important information about the Operating Manual
The operating manual applies to C fan.
The operating manual is a separate part of the technical documentation and part of the
product.
The operating manual is a source of information for the fan user, allowing for safe and efficient
use of the fan.
Please read the operating manual ca
refully. Understanding of this operating manual is a
prerequisite for proper fan operation. You should always follow its recommendations and
information, especially in the area of security. Do not proceed according to the information
extracted from individ
ual chapters without including the manual as a whole.
The operating
manual contains references to other documents. You also need to follow the
content of these documents.
Some figures, included in the operating manual, are used to explain technical details
. The
colours of the presented elements may differ from the original.
The operating manual requires storage in a binder in a way that allows it to be accessed at all
times.
In the case of providing the digital manual and the need to prepare a printout for internal use, if
such action is not a copyright infringement, it is generally advisable to print in colour, as some
of the information contains full information only as a colour presentation.
1.2 Liability
Information on liability and warranty rights is included in the terms and conditions of the
contract for this project. The manufacturer excludes all liability for delays and damages
resulting from non-compliance with this operating manual.
The manufacturer is not responsible for errors in this operating manual. Liability for indirect
and direct damages related to the delivery or use of this operating manual is excluded to the
extent permitted by applicable law.
1.3 Short description of the fan
Fan with housing in which both bearings
are located (bearing block)
Fan with bearings in the form of a
pedestal bearing
The fan is a single-stage centrifugal fan, welded, used to
convey air, gases similar to air or gas mixtures.
The electric drive is carried out via the motor shaft, fan
shaft and clutch.
The fan shaft bearings were made in accordance with the
version
2 rolling bearings, grease lubricated, in housings
with pedestal bearings or
2 rolling bearings, grease
lubricated in one housing (bearing blocks)

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EN 1.4 Use in a manner consistent with the intended use
The fan has been designed, constructed, inspected and delivered to the operating conditions
in accordance with the conditions specified during the order. Do not exceed the values
specified in the data sheet.
Any use of the fan, having a divergent nature from use in a manner consistent with its intended
use is considered to be use in a manner inconsistent with the intended use.
1.4.1 Fan according to Directive 2014/34/UE
Using the fan in a manner consistent with the intended use according to Directive 2014/34/EU
is limited to:
field of application
category of use
category of explosivity of gases and vapors
type of gas or dust
category of temperature
You can find this data on the nameplate.
Use in an environment showing conditions differing from those given
or in another zone of the
plant is prohibited.
1.4.2 Limits of fan use according to Directive 2014/34/UE
The limit conditions for the use of the fan in accordance with Directive 2014/34/EU are:
maximum temperature in the given atmosphere in the temperature r
ange from -20 °C to + 60
°C
absolute pressure from 0,8 to 1,1 bar
Volume fraction of oxygen up to 21%
If the conditions are divergent in relation to the above
-mentioned limit conditions, a separate
contract for execution is required. The implementation sh
ould be followed up with
documentation and a separate risk assessment.
1.4.3 Operating conditions
It should be remembered that the operating conditions contained in the fan data sheet are
binding for the fan. If the fan is operated under different conditions
, the manufacturer's
consent should be obtained in advance.
1.5 Predictable uses in a manner inconsistent with the intended use
The use of a fan in a manner not intended in the contents of the operating manual that may
result from predictable human behavio
ur is considered to be “predictable uses in a manner
inconsistent with the intended use”.
Predictable uses in a manner inconsistent with the intended use:
- Failure to comply with the conditions of placing and installation of the fan.
-
Fan dimensions are not calculated in relation to the conditions of use.
-
The fan sucks in foreign matter, which may cause damage to the fan.
-
The control and adjustment environment generates data that can lead to conflicts within the
fan.
-
Installation personnel would switch the positions of the fan connections.
- Installation personnel would switch the fan accessories (e.g. compensator with deflector).

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- Installation personnel would make faulty electrical connection of the fan (electric motor).
-
The technical service personnel would forget tools or other items inside the fan. During start
up it is possible that tools or other objects are not noticed inside the fan.
-
The technical service personnel would perform activities on the fan and its components
when the fan is running.
-
Personnel would tamper with safety systems.
-
Personnel would remove the safety devices that separate the fan from people and start the
fan.
-
Personnel would fail to comply with the obligation to wear personal protective equipment.
- Personnel would use the console as an auxiliary ladder.
The above points only contain predictable uses in a way incompatible with the intended use,
the list may not be complete. Its content is based on the manufacturer's experience.
1.6 Necessary qualifications to operate the fan
The operating manual establishes qualifications for various areas of activity.
Cleaning personnel
The cleaning personnel was instructed by the user about the tasks assigned to him and
possible risks in the event of inadequate handling. This personnel carries out c
leaning of the
fan.
Electrical engineer
The electrical engineer, due to his professional qualifications, knowledge and experience as
well as knowledge of standards and provisions, is able to independently perform work on the
electrical installation and
identify risks and avoid them.
The electrical engineer is trained in the location of the place of work and knows the relevant
standards and regulations.
Maintenance engineer
The maintenance engineer, due to his professional qualifications, knowledge an
d experience
as well as knowledge of standards and provisions, is able to independently perform
mechanical work on the fan and identify risks and avoid them.
The maintenance engineer is trained in the location of the place of work and knows the
relevant standards and regulations.
Employee authorized to give instructions
The employee authorized to give instructions, due to the professional qualification and
authorization by the company, is authorized to give instructions to qualified personnel and is
obli
ged to perform control. The employee authorized to give instructions simultaneously
coordinates work and processes running in parallel.
Authorized person with additional qualifications for EX protection according to TRBS
1203
The authorized person with
additional qualifications in the scope of EX protection, due to his
professional qualifications, knowledge and experience as well as knowledge of standards and
provisions, is able to independently perform work in potentially explosive areas and in the area
of explosion protection components, and identify and avoid risks.
Information on assigning qualifications to activities at various stages of the machine's life
is available in the chapter "Activities and qualifications" for a specific stage of the dev
ice's
life.

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EN 2 Safety rules
The fan has been constructed and manufactured in accordance with the currently valid
technical level and recognized safety techniques. Despite this, it is possible that a risk to
persons or valuable objects occurs, because the sc
ope of an effective protective system does
not allow avoiding all possible threats. However, it is possible to prevent accidents resulting
from these risks and disruptions through exhaustive training of personnel regarding the
provisions of this operating
manual and the information contained therein. At the same time,
strict adherence to these operating manual allows you to take full advantage of the
performance and capabilities of the fan and to avoid unnecessary disturbances.
The basic condition for safe
and uninterrupted operation of the fan is full knowledge of safety
rules and applicable regulations.
Therefore, before starting the fan operation, read this section. You must also follow the
recommendations and warnings found on the relevant pages in the
text and in the following
chapters. Failure to comply with the rules and warnings may result in the manufacturer being
released from product liability.
In addition to the provisions of this operating manual, regulations, in particular safety
regulations a
nd accident prevention shall apply.
2.1 Symbols contained in the operating manual
This manual as well as signs on the fan use symbols and coloured backgrounds that require
special attention. The appearance and symbols of the operating manual are described below.
2.1.1 Information
This symbol draws attention to favourable tips, explanations and additions regarding the
fan operation.

The symbol refers to a chapter in the operating manual or other documentation / external
information.

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2.1.2 Warnings
Structure of a warning
Danger of suspended load
DANGER
The suspended load may break off, it is possible that it swings or
catches persons. This can result in serious injury of the personnel and
material damage.
Do not stand below a suspended load.
When repla
cing elements, always attach them carefully to appropriate
slings.
Avoid putting the suspended load in a swinging motion.
The subcontractors' documentation should be followed.
Structure of a warning
DANGER
DANGER
Informs about a dangerous sit
uation. Failure to follow the
recommendations related to this information can most likely result in a
fatal accident.
WARNING
WARNING
Informs about a dangerous situation. Failure to follow the
recommendations related to this information can result
in a fatal
accident or serious injury.
ATTENTION
ATTENTION
Informs about a dangerous situation. Failure to follow the
recommendations related to this information can most likely result in an
accident. Injuries can occur; however, fatalities and serious injuries are
unlikely.
ATTENTION
ATTENTION
Informs about a situation during which material damage may occur.
Failure to follow the recommendations related to this information can
result in material damage. The notice functions without being
associ
ated with a warning sign.
Warning sign and notice
Type and source of danger
Possible consequences of non-compliance
Avoiding (actions / prohibitions)

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EN 2.1.3 Safety signs
2.1.3.1 Warning signs
Warning signs indicate dangerous situations.
Warning against risk
The symbol warns against a risk for which there is no standard warning sign in the form
of a pictogram. If the threat is not vi
sible immediately, the next tab with the explanation
is located under the sign.
Warning against electricity
The symbol warns against a risk from electricity. Warning symbol, placed among others
on the terminal boxes of electric motors.
Warning against hot surface
The symbol warns against the risk of a hot surface. Warning symbol, placed among
others on the housing or the bearing of the fan.
Warning against suspended load
The symbol warns against the danger caused by suspended loads (e.g. transpo
rt of
heavy loads by cranes and gantries).
Warning against automatic start
The symbol warns against mechanical risk (e.g. gripping, drawing in or getting caught
by the impeller) and of automatic start.
Warning against being drawn inside the machine
The symbol warns against mechanical risk
– pulling in while using consumables.
Warning against hand injury
The symbol warns against mechanical risk
– crushing or cutting while using
consumables.
Warning against explosion
The symbol warns against r
isks caused by sparks or hot surfaces. Warning symbol,
placed among others on electrical components.
Warning against the emission of hot or dangerous gases
The symbol warns against risks due to hot or dangerous gases escaping from hub or flange
seals.
Warning against cutting off
The symbol warns against mechanical risk
– cutting off when opening the inspection
hatch.
2.1.3.2 Prohibition signs
No unauthorized access
The prohibition sign indicates an area to which access is only allowed to authorized
pers
ons.

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No use of open fire and smoking
The prohibition sign indicates an area where the use of open fire and smoking is
forbidden.
2.1.3.3 Mandatory signs
General mandatory sign
This sign is used in combination with an additional sign. You should strictly fol
low the
instructions shown on the additional sign.
The order of compliance with the instructions
The sign informs about the obligation to comply with the operating instructions. For
information on operating instructions, please refer to the user's manual.
Hearing protection
An order to wear hearing protection when performing activities in a noise environment
up to 80 dB(A) and / or exceeding a peak noise level of 135 dB(C).
Head protection
An order to wear head protection when performing activ
ities in conditions of risk of
falling objects or the possibility of hitting head against a hard object during normal body
movements.
Hand protection
An order to wear protective gloves when performing activities in conditions of risk of
injury, such a
s cutting, sticking, clamping, the effect of temperature or harmful
substances.
Foot protection
An order to wear foot protection when performing activities in conditions of risk of falling
or cramping objects, walking on sharp objects, effects of temp
erature or harmful
substances.
Eye protection
An order to wear eye protection when performing activities in an environment in which
there is possibility of liquids and gases under pressure or solid particles getting to the
eyes.
2.1.3.4 Symbols, indicating hazardous materials and the rules for their disposal
Risk to the environment.
The hazard symbol indicates materials exhibiting properties that pose risk to the
environment.
2.2 Information plates on the fan
Make sure that the descriptions and markings placed on the fan are visible and legible.

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Markings on the fan
Table 2: Markings on the fan (examples)
Item Symbol Description Location
01
Warning against electricity
The symbol warns against a risk from dangerous
electricity.
On the terminal box of electric
motor
02
Warning against hot surface
The symbol warns against thermal risk – hot surface
burns.
On the housing and bearing of
the fan
03
Warning against rotating impeller
The symbol warns against the mechanical risk caused
by the rotating impeller.
04
Warning against cutting off
The symbol warns against mechanical risk – cutting
off when opening the inspection hatch.
On the lid of the inspection
opening
05
[clockwise]
[counter-
clockwise]
Arrow indicating the direction of rotation
The symbol indicates the direction of rotation.
On the fan housing there are two
arrows indicating direction (the
direction of rotation and air
exhaust)
06
[clockwise]
[counter-
clockwise]
Direction of air exhaust
The symbol indicates the direction of air exhaust.
07
Earthing lugs
The symbol indicates the earthing lugs connection
Earthing lugs connection on the
console
08
Warning against risk of explosion
The symbol warns against risks caused by sparks or
hot surfaces.
On electric motor

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Marking with warning labels according to ANSI
Item
Symbol
Description
Location
01
Warning against electricity
The symbol warns against a risk from
dangerous electricity.
On the terminal box of
electric motor
02
Warning against hot surface
The symbol warns against thermal risk
– hot surface burns.
On the housing and bearing
of the fan
2.3 Fan safety systems
2.3.1 Protective measures separating persons from the device
Guards
Touch guards
hub seal / cooling disc and clutch
Fan with protective elements
The rotating parts of the fan, such as the bearing shaft,
clutch and cooling disc are protected by touch guards.
The version with a single pedestal bearing is also
equipped with an additional shaft cover.

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EN 2.3.2 Protection of electrical components
Motor circuit breaker
The motor circuit breaker protects the electric motor against thermal overload in the event of
mechanical overload or failure of a single wire or multiple external conductors.
2.3.3 Information and markings
Special hazard areas and security systems are marked using appropriate means.

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2.4 Overview of residual risk
Table 3 shows the residual risk of the fan.
Table 3: Overview of residual risk
Cause of risk Risk situation Actions
Contact with electrical
components during
troubleshooting
Directly touching the active
elements (electric motor)
Necessary training of personnel in dealing with live
components.
Improper visibility All activities at the fan Lighting system, provided by the user
Gripping, winding Contact with rotating parts
of the fan
Preparation of work instruction by the user
Overload, fatigue,
stress
All activities at the fan Preparation of work instruction by the user
Human error All activities at the fan Preparation of work instruction by the user
Operating error All activities at the fan Preparation of work instruction by the user
Security bypass All activities at the fan Preparation of work instruction by the user
Insufficient information
from the user
All activities at the fan Preparation of work instruction by the user
Crushing, clamping Operation of machinery
components
The order to wear personal protective equipment
Burn, freezing Contact with hot surfaces The order to wear personal protective equipment
Preparation of work instruction by the user
Constant noises Fan operation The order to wear personal protective equipment
Use, application of
hazardous materials
All activities at the fan The order to wear personal protective equipment
Inhalation of dangerous
liquids, gases, aerosols,
mists of vapours and
dust (hazardous
materials)
Improper use of cleaning
products
Preparation of work instruction
Improper use of lubricants Preparation of work instruction
Chemical reactions Improper use of cleaning
products
Preparation of work instruction
2.5 Basic safety rules
The basic safety rules are a condition for the safe use of the fan. It is worth using the
basic safety rules to train and instruct the personnel. Communicating these rules will
allow
for safe conduct of personnel and will enable transfer of responsibility.
Use in a manner consistent with the intended use
Disregarding the rules of use in a manner consistent with the intended use may result in
significant personal and materia
l damage.
−
It is recommended to use the fan only as intended, according to the content of chapter
"Use in a manner consistent with the intended use".
Qualified and authorized personnel
Performing any activities on the fan by unqualified and unauthorized personnel may result in
significant personal and material damage.
−
All activities performed on the fan should be carried out by qualified and authorized
personnel.

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Accident prevention regulations
−Regardless of observing safety rules and warnings, you should also follow accident
prevention regulations.
Safety rules
−Train personnel in terms of safety rules (content of operating instructions, emergency plans,
wearing personal protective equipment, safe working methods, etc.).
−
Check the observance of safety rules by the personnel.
−
Do not allow personnel to wear long hair, loose clothing and jewellery, including rings, ties,
etc.
−Do not allow personnel to disassemble or disable security systems.
Changes within the fan
−Do not make changes to the fan without the consent of the manufacturer.
−Do not tamper with the fan
Substances harmful to health
−When using substances harmful to health, e.g. cleaning products, the safety data sheet and
the operating manual must be observed.
Sub-supplier documentation
−The content of sub-contractors' documentation should be followed.
Personal protective equipment
Absence, use of defective personal protective equipment or using them improperly can cause
considerable material damage.
−
Personnel should be trained in the use of personal protective equipment in the right way.
−
Regularly check personal protective equipment to prevent damage and expiry.
−
In the event of damage and expiry of personal protective equipment, it is necessary to
replace them with new ones.
−
Provide the personnel with the necessary personal protective equipment required in a
certain stage of life of the device.