ZIEHL-ABEGG RE P Series User manual

Centrifugal-motorized impellers
Type RE..P / RH..M
Explosion-proof design in compliance with Directive
2014/34/EU (ATEX) for use in zone 1 (category 2) and
zone 2 (category 3) explosive atmosphere
Assembly instructions
Keep for reference!
VENTILATOR-Typenschild
einkleben!
L-BAL-F006-GB 2010 Index 002 Part.-No. 00280361-GB
english

Content
1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Structure of the assembly instructions . . . . . . . . . . . . . . . . . . . . 4
1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Exclusion of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Hazards and intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.1 Special hazards when operating in explosive atmospheres . 7
2.3.2 Improper use / reasonably foreseeable misuse . . . . . . . . . . 7
2.4 Explanations of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 Requirements placed on the personnel / due diligence . . . . . . . 9
2.7 Work on the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.8 Modifications / interventions in the device . . . . . . . . . . . . . . . . . 10
2.9 Operator’s obligation of diligence . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 Employment of external personnel . . . . . . . . . . . . . . . . . . . . . . . 10
3 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Application / operational area . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.1 Application area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.2 Explosion protection zone . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.3 Equipment class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.4 Temperature class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.5 Motor impeller marking . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Name plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Transport, storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Disposal / recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Special installation features for explosion-protected motor impel-
lers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.1 Installation, protection from external influences . . . . . . . . . . 16
4.2.2 Protect from the penetration of foreign bodies . . . . . . . . . . 16
4.2.3 Protect from contact with rotating and stationary parts . . . . . 17
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4.2.4 Sealing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 Connection lead & terminal box . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Assembly in a humid atmosphere . . . . . . . . . . . . . . . . . . . . . . . 19
5 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 EMC-compatible installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.4 Electrical connection, grounding and protection . . . . . . . . . . . . . 20
5.5 Mains connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.5.1 Line Voltage/Rotat. Direction . . . . . . . . . . . . . . . . . . . . . . 21
5.5.2 Required quality attributes for the mains voltage . . . . . . . . . 21
5.6 Motor protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.7 Speed control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Prerequisites for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 During start-up check the following . . . . . . . . . . . . . . . . . . . . . . . 22
7 Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1 Code of behaviour in the event of faults . . . . . . . . . . . . . . . . . . . 24
7.2 Possible causes and remedial measures . . . . . . . . . . . . . . . . . . 24
8 Service work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1 Repairs / maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.2 Connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.3 EC Declaration of Incorporation . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.4 EU declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.5 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.6 Manufacturer reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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1 General notes
Compliance with the following instructions is mandatory to ensure the functionality and
safety of the product. If the following instructions given especially but not limited for
general safety, transport, storage, mounting, operating conditions, start-up, mainte-
nance, repair, cleaning and disposal / recycling are not observed, the product may not
operate safely and may cause a hazard to the life and limb of users and third parties.
Deviations from the following requirements may therefore lead both to the loss of the
statutory material defect liability rights and to the liability of the buyer for the product that
has become unsafe due to the deviation from the specifications.
1.1 Structure of the assembly instructions
Before installation and start-up, read this assembly instructions carefully to ensure
correct use!
We emphasize that these assembly instructions apply to specific units only, and are in
no way valid for the complete system!
Use these assembly instructions to work safely with and on the device. They contain
safety instructions that must be complied with as well as information that is required for
failure-free operation of the device.
Keep these assembly instructions together with the device. It must be ensured that all
persons that are to work on the device can refer to the assembly instructions at any time.
Keep the assembly instructions for continued use. They must be passed-on to all
successive owners, users and final customers.
1.2 Target group
The assembly instructions address persons entrusted with planning, installation, com-
missioning and maintenance and servicing and who have the corresponding qualifica-
tions and skills for their job.
1.3 Exclusion of liability
Concurrence between the contents of these assembly instructions and the described
hardware and software in the device has been examined. It is still possible that non-
compliances exist; no guarantee is assumed for complete conformity. To allow for future
developments, construction methods and technical data given are subject to alteration.
We do not accept any liability for possible errors or omissions in the information con-
tained in data, illustrations or drawings provided.
ZIEHL-ABEGG SE is not liable for damage due to misuse, improper use or as a
consequence of unauthorized repairs or modifications.
1.4 Copyright
These assembly instructions contain copyright protected information. The assembly
instructions may be neither completely nor partially photocopied, reproduced, translated
or put on data medium without previous explicit consent from ZIEHL-ABEGG SE. In-
fringements are liable for damages. All rights reserved, including those that arise through
patent issue or registration on a utility model.
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2 Safety
2.1 Safety instructions
This chapter contains instructions to prevent personal injury and property damage.
These instructions do not lay claim to completeness. In case of questions and problems,
please consult our company technicians.
Attention!
•Non-compliance with the information and safety instructions listed in these assembly
instructions can cause serious health and safety risks!
Be aware of the following Points:
•The fans are intended exclusively for use in zone 1 and 2 explosive atmospheres for
gases (see rating plate).
•The conveyance of solid matter or solids content in the conveying medium is not
permissible and can lead to dangerous situations. ZIEHL-ABEGG rejects any liability
for damage of any kind as a result of such use.
•The temperature classes of fan and motor are allowed to be different, but they must
be defined according to the ignition temperature of conveying media.
•The fans must be operated in the temperature ranges specified on the rating plate.
•The operating data on the rating plate are specified for an air density of 1.2 kg/m
3
.
•Assembly and electrical connection may only be carried out by skilled personnel in
compliance of applicable standards and these assembly instructions.
•Start-up and maintenance of the device may only be carried out by skilled personnel,
who have completed ATEX training for correct performance of their work.
•The motor overheating protection equipment must be connected. Improper con-
nection will invalidate the manufacturer's warranty. Furthermore, this might lead to
explosion hazards.
•Protection of the motor against unusual heating according to EN 60204
•If the fan is accessible, guard grilles complying with EN 13857 must be installed.
These must not be changed and must be adequately secured.
•Pay attention to objects at a greater height which might fall down.
•Pay special attention to material combinations according to EN 14986.
•Since a residual risk due to falling objects, incorrect behaviour, etc. cannot be
completely ruled out, the designer, operator or manufacturer of the installation or
system in which the fan is to be installed, must prevent any potentially hazardous
situation from arising by means of appropriate safety measures in line with standard
EN ISO 12100 and especially standard EN 14986.
•The operator is responsible for maintenance of the fan.
•Compliance with the EMC Directive only exists if the fan is directly connected to the
main power supply. If the fan is installed in a system or combined with other products,
the system manufacturer is responsible for compliance with the EMC Directive.
Responsibility of users
•The owner or operator must ensure that the equipment (fan and electrical system) is
used according to the description in these instructions and kept in good operating
condition.
•The user shall only put the fan into operation after it has been properly installed.
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•The fan must be operated in accordance with the assembly instructions.
•To ensure operability, safety devices (especially the overheating protection equip-
ment) must be checked regularly.
•The instructions for installation and use must be complete and available to users at
any time.
•Users must be trained with regard to the hazards associated with the operation of an
installation in an explosive atmosphere and the intended use of the installation.
•No safety and warning instructions on the fan may be removed, and the user must
make sure that they are legible.
•The persons responsible for the installation, start-up, operation and maintenance of
the device must be competent and possess sufficient experience to correctly perform
their work.
•In addition, they must know the European standards and guidelines (at national and
regional level and if applicable the in-house regulations) for safety and hazard
prevention. A new user may only work under the supervision of an experienced
operator.
•This device must not be used by persons with limited physical and mental abilities.
Moreover, the minimum legal age must be observed, the users must be adequately
trained.
2.2 Intended use
Attention!
•The motor impellers are only intended for conveyance of air or mixtures similar to air.
•Only motor impellers marked with the
symbol can be used for conveyance of or
installed in an explosive atmosphere.
•Any other use above and beyond this is considered not for the intended purpose
unless agreed otherwise by contract. The manufacturer will not be liable for any
damage resulting from this. The individual or company using it bears the sole risk.
•Reading these document and complying with all contained instructions -especially the
safety notifications contained therein -are considered part of intended use.
•To consider is also the documentation of attached components.
•On ZIEHL-ABEGG RE..P / RH..M centrifugal motor impellers from group II, equipment
category 2G, EPL Gb with ignition-protection class “c” (with “h” marking) for conveying
group IIB explosive gas atmospheres for zone 1 and zone 2, with MK.. external rotor
motors for potentially explosive areas, ignition-protection class “e” in compliance with
Directive 2014/34/EU, the intended use is limited by the following factors.
The following usage limits are applicable:
–maximum pumped medium temperature in the range from -20...+40 °C
–maximum absolute pressure in the range from 0.8 to 1.1 bar
–maximum part by volume, oxygen 21 %
–maximum installation height 2000 m above mean sea level
In addition, a maximum drive motor ambient temperature of +40 °C must not be
exceeded. In exceptional cases, motors may also be suitable for operation at ambient
temperatures up to 60 °C (see motor rating plate) or installation at altitudes of more than
2000 m above sea level (in some cases with reduced power).
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2.3 Hazards and intended use
2.3.1 Special hazards when operating in explosive atmospheres
When operating a fan in an explosive atmosphere and when conveying explosive gases
with the fan, comply especially with the following potential hazards and ignition sources
stated below:
•Contact between rotating parts (impeller) and stationary parts (inlet nozzle) can result
in friction, grinding or impact sparks.
•Development of friction, grinding or impact sparks due to the intake of foreign bodies
or through foreign bodies which fall into the fan.
•Development of sparks caused by the discharging or electrostatically charged compo-
nents. Especially plastic surfaces and surfaces with high layer thickness are a hazard
potential due to dust deposits.
•Hot surfaces, e.g. due to an overload or through frictional heat caused by contact of
rotating parts with stationary parts.
•Strong vibrations (e.g., due to imbalance) which can lead to parts becoming hot (e.g.,
due to a bearing defect) or due to rotating and stationary parts touching each other.
•Release of an explosive atmosphere from the inside to the outside or from the outside
to the inside, thus resulting in an explosive atmosphere (zone entrainment).
•The following sections explain additional risks and the required measures to minimise
or avoid them.
2.3.2 Improper use / reasonably foreseeable misuse
•Operating in or with explosion protection zone 0.
•Operation in or with an explosion protection zone for which the motor impeller is
unsuitable because of its class, e.g. operation of a gas explosion protected motor
impeller in a dust explosive area.
•Operation in or with a medium for which the motor impeller is unsuitable due to its
maximum surface temperature.
•Conveyance of aggressive, corrosive, abrasive or adhesive media.
•Conveyance of dust and media containing particles.
•Transfer of solids or solids content in the transfer medium.
•Operation on a frequency inverter for speed control.
•Operation at unacceptably high speeds. The maximum permitted speed is specified
on the rating plate.
•Operating conditions which are associated with impermissibly strong vibrations or
which lead to exceeding the maximum permissible frequency of vibrations.
•Use with direct contact with foodstuffs or cosmetic and pharmaceutical products.
•Use of the fan as an independent household appliance.
•Operation with iced up impellers.
•Conveyance of liquid media.
•Use of the fan and add-on parts (e.g. guard grille) as a resting surface or climbing aid.
•Operation of the fan as a safety component or for the performance of safety-relevant
functions in the sense of EN ISO 13849-1.
•Blocking or braking of the fan by inserting objects.
•Loosening of fan blade, impeller and balancing weight.
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•Use as fire gas or smoke extraction fan.
•All applications not listed in the intended use.
•Fans and parts of fans must never be changed or altered without authorisation. The
following measures apply, for instance, as non-intended:
–Removing or replacing components or individual parts of the fan with non-identical
parts.
–Absence of loose accessories supplied, which are required to ensure intended use
(e.g. inlet nozzles and protective grille).
–Drilling holes.
–Welding parts on.
–Modifying the coating (e.g. grinding off, painting over).
–Jobs or conditions which do not comply with the instructions stated in these
operating instructions on storage, installation, transport, connection, maintenance,
service, cleaning and which deviate with the special instructions on explosion
protected fans listed below.
Attention!
Not the manufacturer, rather the operator of the device is liable for any personal harm or
material damage arising from non-intended use.
2.4 Explanations of symbols
Safety instructions are highlighted with warning triangles and are depicted
according to the degree of hazard as follows.
Attention!
General hazardous area. Death or severe injury or significant property damage can
occur if the corresponding precautions are not taken!
Danger due to electric current
Danger by dangerous, electric voltage! Death or severe injury can occur if the
corresponding precautions are not taken!
Information
Important additional information and advice for user.
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2.5 Product safety
The device conforms to the state of the art at the time of delivery and is fundamentally
considered to be reliable. The device and its accessories must only be used in a flawless
condition and installed and operated in compliance with the assembly instructions and/or
operating instructions. Operating outside the device's technical specifications (see name
plate and attachment / technical data) can lead to a defect in the device and additional
damage!
Information
A separate fault and performance monitoring-system with an alarm signal function is
necessary in order to prevent personal injuries and material damages during malfunc-
tions and in case the device fails. Substitute operation must be taken into consideration!
The design and installation of the system must comply with local regulations and
directives.
2.6 Requirements placed on the personnel / due diligence
Persons entrusted with the planning, installation, commissioning and maintenance and
servicing in connection with the frequency inverter must have the corresponding qual-
ifications and skills for these jobs.
In addition, they must be knowledgeable about the safety regulations, EU/EC directives,
rules for the prevention of accidents and the corresponding national as well as regional
and in-house regulations. Personnel to be trained or instructed and apprentices are only
permitted to work on the device under the supervision of an experienced person. This
also applies to personnel undergoing general training. Comply with the legal minimum
age.
2.7 Work on the device
Information
Mounting, electrical connection, and start-up operation may only be carried out by an
electrical specialist in accordance with electrotechnical regulations (e.g. DIN EN 50110
or DIN EN 60204)!
Only specifically qualified persons are permitted to perform any work on explosion
protected devices (e.g. TRBS 1203, Section 3.1).
Danger due to electric current
•It is generally forbidden to carry out work on electrical live parts. Protection class of the
device when open is IP00! It is possible to touch hazardous voltages directly.
•The safe isolation from the supply must be checked using a two-pole voltage
detector.
•Maintenance work may only be carried out by suitably qualified personnel.
Attention, automatic restart!
•The fan / motor may switch on and off automatically for functional reasons.
•After power failure or mains disconnection an automatic restart of the fan takes place
after voltage return! Therefore the fan must be disconnected from voltage before
doing any work (see service work).
•Wait for the fan to come to a complete standstill before approaching it!
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Danger of being sucked in!
Do not wear loose or hanging clothing, jewellery, etc., tie together long hair and cover it.
2.8 Modifications / interventions in the device
Attention!
For reasons of safety, no unauthorized interventions or modifications may be made on
the device. All planned modifications must be authorized by the manufacturer in writing.
Use only genuine spare parts / genuine wearing parts / genuine accessories from
ZIEHL-ABEGG.These parts were specifically designed for the device. There is no
guarantee that parts from non-original sources are designed and manufactured in
correspondence with load and safety requirements.
Parts and optional equipment not supplied by ZIEHL-ABEGG are not approved by
ZIEHL-ABEGG for use.
2.9 Operator’s obligation of diligence
•The contractor or owner must also ensure that the electric systems and equipment
are operated and maintained in accordance with electro-technical regulations.
•The owner is obliged to ensure that the device is operated in perfect working order
only.
•The device may only be used as intended.
•You must periodically examine the safety equipment for their properly functioning
condition.
•The assembly instructions and/or operating instructions are always readily available
at the location where the device is being used, are complete and are in legible
condition.
•These persons are regularly instructed in all applicable questions regarding occupa-
tional safety and environmental protection and are knowledgeable regarding the
assembly instructions and/or operating instructions and, especially, are familiar with
the safety instructions contained therein.
•All safety and warning notices attached to the device are never removed and remain
legible.
2.10 Employment of external personnel
Maintenance and service work are frequently carried out by external employees who
often do not recognize the specific situations and the thus resulting dangers.These
persons must be comprehensively informed about the hazards in their area of activity.
It is the site manager's task to obtain information about potential hazards related to the
ATEX Zone and to ensure that personnel are adequately trained in the tasks to be
performed.
You must monitor their working methods in order to intervene in good time if necessary.
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3 Product overview
3.1 Application / operational area
ZIEHL-ABEGG RE..P/RH..M series centrifugal motor impellers (see rating plate for type
designation) with explosion-proof design
II 2G h IIB T3/T4 Gb with MK type integrated
external rotor motor with increased safety ignition protection class
II 2G Ex eb IIC
T3/T4 Gb, in compliance with IEC 60079-0; 60079-7, are not ready-to-use products, but
are designed as components for ventilation equipment, machines and systems.
They may only be operated when they are installed as intended and safety is ensured
through the use of protective devices complying with DIN EN ISO 13857 / EN 60529 and
the constructional explosion protection measures stipulated by EN 14986. The motor
impellers are rated for S1 continuous service.
3.1.1 Application area
The motor impellers satisfy the requirements for equipment group II in compliance with
Directive 2014/34/EU and therefore are not suitable for equipment group I applications
(underground or mining, cooling/ventilation of rotating electrical machinery and combus-
tion engines) and may not be used in these areas. The equipment group is specified on
the rating plate of the relevant fan.
3.1.2 Explosion protection zone
The RE..P, RH..M motor impellers are only intended for conveyance of air or zone 1 and
zone 2 explosive atmospheres. Conveyance of solids, solid parts or dust/air mixtures is
not permitted.
3.1.3 Equipment class
EN 60079-0 Explosive atmospheres - Electrical equipment - General requirements,
EN 60079-7 (Increased safety “e”) and all other standards relevant for explosion pro-
tected fan designs must be complied with. Thus, operation of RE..P and RH..M motor
impellers in gases, vapours, mists or mixtures of these in category 2G (EPL Gb) and
category 3G (EPL Gc) potentially explosive areas is permitted.
Note:
Conveying media that affect the centrifugal motor impeller materials are not permitted.
Materials used:
•RE..P: EN 1706 ACAlSi12Cu1(Fe)DF; Steel EN 10346-DX51D+Z150/275-N-A
•RH..M: EN 1706 AC-AlSi12(Fe)DF; EN 1706 AC-AlSi12Cu1(Fe)DF; EN 485-2-Legier-
ung EN AW-5754(AlMg3)H22; Steel EN 10346-DX53D+Z275-N-A
•Inlet ring (accessory): Sheet EN 1652-Cu-DHP-R220
3.1.4 Temperature class
The RE..P and RH..M category 2G and 3G motor impellers may not be operated in the
vicinity of or with ignitable or explosive gases whose ignition temperature is lower than
the maximum surface temperature of the relevant motor impeller. The maximum surface
temperature is determined by the temperature classes (T3 or T4) specified on the rating
plate.
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The system manufacturer or operator must ensure that the maximum permitted surface
temperature and the temperatures of attached devices do not exceed the T3 or T4
temperature class of the motor impeller and that the ambient air is not above 60 % of the
maximum permitted ignition temperature due to the volume flow rate around the motor.
The motors used are in temperature class T3 or T4, which means that the maximum
surface temperature of the motors cannot exceed T3 - 5 K 195 °C or T4 - 5 K 130 °C.
The motors are the warmest heat source in normal operation and are equipped with a
PTC thermistor, which trips at 130 °C (T3) or 100 °C (T4).
According to DIN EN ISO 80079-36 the following correlation exists between the temper-
ature class and the maximum surface temperature:
Temperature class Max. surface temperature
T1 450 °C
T2 300 °C
T3 200 °C
T4 135 °C
T5 100 °C
T6 85 °C
3.1.5 Motor impeller marking
Example for marking on an RE..P, RH..M motor impeller:
II 2G Ex h IIB T3/T4 Gb
A motor impeller marked in this manner would meet the following requirements.
: General ATEX marking
•II: Group II requirements compliant with Directive 2014/34/EU (not suitable for under-
ground applications)
•2G: Category 2, gas explosion protection outdoors
•h: Standard symbol (previously “c” for constructional safety ignition protection class)
•IIB: Gas explosion group
•T4: Temperature class
•Gb: EPL (equipment protection level)
The local process parameters should be compared with the specifications for intended
use and the data on the rating plate.
Other uses which do not coincide with, or which exceed those specified will be deemed
unauthorised unless contractually agreed. Damages resulting from such unauthorised
uses will not be the liability of the manufacturer. The user will assume sole liability.
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3.2 Name plate
There are two rating plates on the product:
1. The fan rating-plate includes the rated voltage and connection and up to which
specifications the fan can be loaded. Values higher than the stamped absorbed
power / stamped absorbed wattage mean the fan is operating in a range that is not
permitted. If the motor is operated with partial voltage (this is certified in the EU
type-examination certificate data-sheet), the current may rise by the amount ∆I
(in %) indicated on the fan rating plate.
2. The motor rating-plate includes the maximum permitted specification that has
been certified by the Notified Office (German Federal Institute for Science and
Technology, Braunschweig). The partial-voltage currents are also stated on this
plate, which, from the point of view of compliance with the EN 60079-7 stand-
ard, must not be exceeded. The voltage stamped on the motor rating-plate can be
considerably higher than the one stamped on the fan rating-plate using the same
connection. The advantage of this arrangement is explained here using an exam-
ple: If the motor is loaded by the fan with considerably less power than the stamped
motor output, we use voltage reduction. The motor is designed for a voltage higher
than the 400V mains voltage, e.g. for 500V. This improves the electrical character-
istics at 400 V and results in optimum fan-regulation properties. Through this, it is
inevitable that the fan and motor rating-plate electrical data differentiate.
Example: Fan-rating plate
Example: motor-rating plate (2014/34/EU)
Information
A fan rating plate is located on the product and an identical fan rating plate is stuck onto
the title page of the enclosed assembly instructions during production.
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3.3 Transport, storage
Attention!
•Observe the weight specifications (see rating plate) and the permissible carrying
loads of the means of transport.
•Wear safety clothing / shoes and cut-resistant safety gloves when handling.
•Do not transport the fan by the connecting cable!
•Avoid shocks and impacts to the device during the transport.
•Avoid extreme humidity, heat or exposure to cold (see technical data).
•Watch out for possible damage to the packaging or fan.
•Fix pallets during transport.
•Do not stack pallets.
•Only handle with suitable hoisting gear.
•Never stand underneath the suspended fan because defective transport equipment
could cause death.
•Store the fan / motor in the original packaging in a dry area protected from the weather
and protect it from dirt and weather until final installation.
•Avoid prolonged storage; we recommend a maximum of one year (consult the
manufacturer before starting if stored for longer).
•Inspect the bearing for proper operation prior to installation.
–Recommendation: Turn the impeller evenly by hand to avoid jamming and damag-
ing the bearing.
3.4 Disposal / recycling
Disposal must be carried out professionally and in an environmentally friendly way in
accordance with the respective national legal stipulations.
"Separate the materials by type and in an environmentally friendly way.
"If necessary, commission a specialist company with the waste disposal.
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4 Mounting
4.1 General notes
Attention!
•Check the fan for damage, e.g. cracks, dents or damage to the electric cables, before
assembly. Start-up is not allowed in the case of transport damage!
•Mounting is only to be undertaken by trained service personnel. The system
manufacturer or the machine builder and/or the user is responsible that the inherent
installation and security information are harmonized with the valid standard and
guidelines (EN ISO12100 / 13857).
•Wear safety clothing / shoes and cut-resistant safety gloves when handling.
•If necessary, lift the fan out of the packing with a hoisting unit.
•At a weight greater than 25 kg for men / 10 kg for women, the fan should be lifted out
by two persons (according to REFA). The values may differ from country to country.
•Prior to installing the fan, it is to be checked whether the safety zone as per EN ISO
13857 and in household appliances as per EN 60335 are met. If the installation height
(danger zone) above the reference level is greater than or equal to 2700 mm and is
not reduced by auxiliary means such as chairs, ladders, work platforms or bases on
vehicles, a guard grille against accidental contact is not necessary at the fan.
•If the fan is located in danger zone, then the manufacturer or operator shall ensure
that hazards shall be prevented by appropriare protective constuctions which meet
the requirements to EN ISO 13857.
•Protective measures against falling parts must be taken when installing external rotor
motors with suspended rotors.
•The custom designs must suit the prevailing conditions.
•Tighten the fastenings with the specified torques.
•Do not allow drilling chips, screws and other foreign bodies to reach the device
interior!
•Any use in ambient temperatures below -10 °C is dependent on not being subjected to
unusual, sudden or mechanical loads or stresses on the material (for the min.
permissible ambient temperature please see the technical data).
•Before the first switch-on, remove any items that may be present (borings, screws and
other foreign objects) from the intake area - risk of injury from any objects that may fly
out!
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4.2 Special installation features for explosion-protected motor impel-
lers
In terms of material selection, due to special protective measures relating to possible
contact surfaces between rotating and stationary components (impeller end plate, cover
disk / inlet nozzle), ZIEHL-ABEGG centrifugal motor impellers satisfy the requirements
of the EN 14986 standard.
Galvanised steel plate is used as the material for the rotating component of the motor
impeller (impeller end plate, cover disk). If the motor impeller is purchased without a
ZIEHL-ABEGG inlet nozzle, the system manufacturer is responsible for selecting the
material for the stationary peripheral parts. Only material pairs complying with EN 14986
may be used.
4.2.1 Installation, protection from external influences
Install the motor impeller in a housing or in the system with no distortion or tension and
protect it against the effects of external forces and vibrations (e.g. transfer of vibrations
from other system components through the foundations or through the connected pipes
and ductwork).
To attach the motor impeller to the stationary motor flange, use screws with strength
class 8.8 and fit with suitable screw locks.
Permitted torques: M6 9.5 Nm; M10 46 Nm.
Certain operating points/speeds may not be run during resonance of the attached
components. The verification of resonance is to be carried out by the system constructor
during start-up operation.
In the case of a vertical motor axis, the respective lower condensation hole must be
open. The motor impeller should be installed in such a way that easy inspection and
cleaning are possible (good accessibility of inspection hatches).
Up and downstream components or those that lie directly in the airflow must not have
any unprotected aluminum or steel surfaces. A surface protection that at least fulfills the
crosscut test parameter of 2 / DIN EN ISO 2409 is necessary to prevent an aluminother-
mic reaction.
4.2.2 Protect from the penetration of foreign bodies
Fans that take in air from or blow out air to the outside must be protected against ingress
of foreign bodies by a guard grille.
Guard grilles must also be installed if intake or falling in of foreign bodies cannot be ruled
out despite pipes and ductwork being connected.
At least protection class IP20 in compliance with EN 60529 must be guaranteed for the
entire system at all times.
It must be ensured that no flying rust particles or rust flakes are deposited on surfaces.
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4.2.3 Protect from contact with rotating and stationary parts
Ensure that the gap “U” or “S” (see following figures) is uniform.
To comply with the material pair stipulated in EN 14986, the following minimum gaps
must be maintained:
•The minimum gap between rotating and stationary parts may not be less than 0.5 %
of the relevant contact diameter (diameter of a rotating part at the point where it can
come into contact with a stationary part), but not less than 2 mm in an axial or radial
direction, and it must not be more than 13 mm.
•RE..P: To achieve optimum power, the axial gap “U” should be max. 1-2 % of the
nominal diameter of the impeller. Larger axial gap dimensions have a negative impact
on the power of the motor impeller. The system manufacturer must ensure that the
minimum and maximum gap “U” are adhered to.
A copper inlet nozzle can be ordered from ZIEHL-ABEGG SE as an accessory. This
complies with the specified material pair.
Attention!
Always applicable: if the required minimum gap dimension is not maintained in fans, they
must never be put into operation under any circumstances!
RE..P RH..M
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The following minimum gap dimensions between the impeller and the
inlet nozzle must be maintained, depending on the relevant contact diam-
eter
Series/-
Frame size
Relevant impeller contact diameter Required minimum gap 0.5 % of con-
tact diameter and minimum 2 mm
DSI in mm S in mm
RE20P 163 2
RE22P 186 2
RE25P 205 2
RE28P 233 2
RE31P 258 2
RE35P 297 2
RE40P 327 2
DE in mm S in mm
RH31M 200.5 2
RH35M 236.5 2
RH40M 265.5 2
RH45M 298 2
RH50M 334.5 2
RH56M 375 2
RH63M 418 2.1
The possible contact diameter corresponds to the internal diameter at the aspirating hole in the
impeller, which is specified on ZIEHL-ABEGG SE dimension sheets as “DSI” (RE..P) or “DE”
(RH..M).
Attention!
Always check the gap dimension with a feeler gauge before start-up. Safe operation is
only guaranteed if it is compliant.
4.2.4 Sealing
RE..P and RH..M motor impellers are merely components, which are installed in a
system / in a housing. The system manufacturer is responsible for the sealing of the
system.
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4.3 Connection lead & terminal box
Information
In demanding environments (wet areas, open air installation) all connections must
incorporate water drainage curves. To ensure that water cannot penetrate through to the
controller housing from the connections install a terminal box lower than the motor.
4.4 Assembly in a humid atmosphere
Information
If the device is not in use for longer periods in a humid atmosphere, it is recommended to
operate the motor/fan for at least two hours every month at 80 - 100 % of maximum
speed to remove any moisture that has penetrated inside.
5 Electrical installation
5.1 Safety precautions
Danger due to electric current
•Work on electric components may only be carried out by trained electricians or by
persons instructed in electricity under the supervision of an electrician in accordance
with electrical engineering regulations.
•The 5 electrical safety rules must be observed!
•Connect fan only to electrical circuits that can be disconnected with an all-pole
isolating switch.
•The device owner is responsible for the EMC of the entire plant according to the
locally applicable standards.
•It is forbidden to carry out work on electrically live parts!
•Cover neighbouring electrical equipment during installation work.
•Cable glands made out of metal are not allowed in plastic terminal boxes due to lack
of potential equalisation.
•Electrical equipment must be checked regularly: Loose connections are to be re-
tightened and damaged lines or cables must be replaced immediately.
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5.2 Connection
All fan motor units are supplied with a led out cable. If the line ends are connected to the
outer circuits in the potentially explosive area, a specially selected junction box for this
area, with its own EC type approval certificate for components, must be used. Appropri-
ate explosion-proof junction boxes with tested cable and line inlets are available in our
ZIEHL-ABEGG parts lists. The permitted medium temperature is -20...+40 °C. Any differ-
ent medium temperatures are specified on the rating plate, the data sheet and the EC
type approval certificate.
Information
Refer to the connection diagram enclosed or attached to the product, which must be
available at the operating location.
5.3 EMC-compatible installation
Compliance with EMC guideline 2014/30/EU is only guaranteed if the product is
connected to the standard electricity supply grid. If this product is integrated into
a system or complemented and operated with other components (e.g. controller
units and control devices), the manufacturer or operator of the entire system is
responsible for the compliance with the EMC directive 2014/30/EU.
5.4 Electrical connection, grounding and protection
The electrical connections and earthing for the fan must be made by a qualified profes-
sional.
To prevent stray or unsymmetrical currents, connect a potential compensation to other
conductive system components if applicable.
In compliance with EN 1127-1, the device must be protected against the following
hazard sources with suitable protection or screening measures:
•Lightning strike
•High-frequency transmitter stations
•Ionisation sources (e.g. X-ray tubes, radioactive substances)
•Ultrasound sources (e.g., ultrasound test equipment)
•Adiabatic compression and percussion waves (e.g., relief of high-pressure gases in
pipelines, compression ignition of lubricant mists).
•Exothermic reactions (e.g., from substances in the environment which tend to auto-
ignition).
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