Operating Instructions

CONTENTS

1. SAFETY REGULATIONS AND INFORMATION
2. INTENDED USE
3. TECHNICAL DATA
4. CONNECTION AND STARTUP
5. MAINTENANCE, MALFUNCTIONS, POSSIBLE CAUSES AND REMEDIES

1. SAFETY REGULATIONS AND INFORMATION

Read these operating instructions carefully before starting work on the device. Observe the following warnings to prevent malfunctions or danger to persons.

These operating instructions are to be regarded as part of the device. The device is only to be sold or passed on together with the operating instructions.

These operating instructions may be duplicated and distributed to inform about potential dangers and their prevention.

1.1 Hazard levels for warnings

These operating instructions use the following hazard levels to indicate potentially hazardous situations and important safety regulations:

DANGER
Indicates an imminently hazardous situation which will result in death or serious injury if the specified actions are not taken. Compliance with the instructions is imperative.

WARNING
Indicates a potentially hazardous situation which can result in death or serious injury if the specified actions are not taken. Exercise extreme caution while working.

CAUTION
Indicates a potentially hazardous situation which can result in minor or moderate injury or damage to property if the specified actions are not taken.

NOTE
A potentially harmful situation can occur and, if not avoided, can lead to property damage.

1.2 Staff qualifications

The device may only be transported, unpacked, installed, operated, maintained and otherwise used by suitably qualified, trained and authorized technical staff.

Only authorized specialists are permitted to install the device, to carry out a test run and to perform work on the electrical installation.

1.3 Basic safety rules

The safety hazards associated with the device must be assessed again following installation in the final product.

The locally applicable industrial safety regulations are always to be observed when working on the device.

Keep the workplace clean and tidy. Untidiness in the work area increases the risk of accidents.

Note the following when working on the device:

• Do not perform any modifications, additions or conversions on the device without the approval of ebm-papst.

1.4 Voltage

• Check the device's electrical equipment at regular intervals; see Chapter 5.2 Safety inspection.
• Replace loose connections and defective cables immediately.

DANGER
Electrically charged device ⚡ Risk of electric shock

• When working on an electrically charged device, stand on a rubber mat.

WARNING
Live terminals and connections even with device switched off ⚡ Electric shock

• Wait five minutes after disconnecting the voltage at all poles before opening the device.

CAUTION
In the event of a fault, the rotor and the impeller will be energized.

The rotor and the impeller have basic insulation. Do not touch the rotor and impeller once installed.

The motor restarts automatically when operating voltage is applied, e.g. after a power failure. ⚡ Risk of injury

• Keep out of the device's danger zone.
• When working on the device, switch off the line voltage and ensure that it cannot be switched back on.
• Wait until the device comes to a stop.

1.5 Safety and protective features

DANGER
Protective device missing and protective device not functioning.

Without a protective device there is a risk of serious injury, for instance when reaching into the device during operation.

• Operate the device only with a fixed protective device and guard grille.
• The fixed protective device must be able to withstand the kinetic energy of a fan blade that becomes detached at maximum speed. There must not be any gaps which it is possible to reach into with the fingers, for example.
• The device is a built-in component. As the operator, you are responsible for ensuring that the device is secured adequately.
• Stop the device immediately if you notice a missing or ineffective protective device.

1.6 Mechanical movement

DANGER
Rotating device ⚡ Risk of injury to body parts coming into contact with the rotor or the impeller.

• Secure the device against accidental contact.
• Before working on the system/machine, wait until all parts have come to a standstill.

WARNING
Rotating device. Long hair and dangling items of clothing, jewelry and the like can become entangled and be pulled into the device. Injuries can result.

• Do not wear any loose-fitting or dangling clothing or jewelry while working on rotating parts.
• Protect long hair with a cap.

1.7 Emissions

WARNING
Depending on the installation and operating conditions, the sound pressure level may exceed 70 dB(A). Risk of noise-induced hearing loss.

• Take appropriate technical safety measures.
• Protect operating personnel with appropriate safety equipment such as hearing protection.
• Also observe the requirements of local agencies.

1.8 Hot surface

CAUTION
High temperature on motor housing ⚡ Risk of burns

• Ensure sufficient protection against accidental contact.

1.9 Transport

NOTE
Transporting the device.

• Transport the device in its original packaging only.
• Secure the device so it cannot slip, e.g. by using a lashing strip.

1.10 Storage

Store the device, partially or fully assembled, in a dry place, protected against the weather and free from vibration, in the original packaging in a clean environment.

• Protect the device against environmental effects and dirt until final installation.

We recommend storing the device for no longer than one year in order to guarantee trouble-free operation and the longest possible service life.

Even devices explicitly intended for outdoor use are to be stored as described prior to commissioning.

• Maintain the storage temperature, see Chapter 3.5 Transport and storage conditions.

2. INTENDED USE

The device is exclusively designed as a built-in device for conveying air according to its technical data.

Any other usage above and beyond this does not conform with the intended purpose and constitutes misuse of the device.

Customer equipment must be capable of withstanding the mechanical and thermal stresses that can arise from this product. This applies for the entire service life of the equipment in which this product is installed.

Intended use also includes:

• Using the device only in power systems with grounded neutral (TN/TT power systems).
• Using the device solely outside of the EU.
• Conveying air at an ambient air pressure between 800 mbar and 1050 mbar.
• Using the device within the permitted ambient temperature range; see Chapter 3.5 Transport and storage conditions and Chapter 3.2 Nominal data.
• Operating the device with all protective devices.
• Following the operating instructions.

Improper use

In particular, operating the device in the following ways is prohibited and could be hazardous:

• Operating the device in an unbalanced state, e.g. due to dirt deposits or ice formation.
• Resonant operation, operation with severe vibration. This also includes vibration transmitted to the fan from the customer installation.
• Operation in medical equipment with a life-sustaining or life-support function.
• Conveying solids in the flow medium.
• Painting the device.
• Connections (e.g. screws) coming loose during operation.
• Conveying air that contains abrasive particles.
• Conveying highly corrosive air, e.g. salt spray. Exception: devices designed for salt spray and correspondingly protected.
• Conveying air with high dust content, e.g. suctioning off sawdust.
• Operating the device close to flammable materials or components.
• Operating the device in an explosive atmosphere.
• Using the device as a safety component or to perform safety-related functions.
• Operation with completely or partially disassembled or manipulated protective devices.

In addition, all applications not listed among the intended uses.

3. TECHNICAL DATA

3.1 Product drawing

All dimensions in mm.

Diagram:

A side view and a front view of the fan are shown. Dimensions are indicated with arrows and numerical values. Keyed notes point to specific features:

• 1: Direction of air flow "V"
• 2: Max. clearance for screw 5 mm
• 3: Cable PFA AWG20, 4x crimped splices

Diagram:

A view of the motor hub with mounting holes is shown. Dimensions and specifications for screws and cable are indicated.

3.2 Nominal data

ml = Max. load, me = Max. efficiency, fa = Free air, cs = Customer specification, ce = Customer equipment. Subject to change.

Note: With regard to cyclic speed loads, note that the rotating parts of the device are designed for a maximum of one million load cycles. If you have special questions, consult ebm-papst for support.

• Use the device in accordance with its degree of protection.

Information on surface quality

The surfaces of the products conform to the generally applicable industrial standard. The surface quality may change during the production period. This has no effect on strength, dimensional stability and dimensional accuracy.

The color pigments in the paints used perceptibly react to UV light over the course of time. This does not however in any way affect the technical properties of the products. The product is to be protected against UV radiation to prevent the formation of patches and fading. Changes in color are not a reason for complaint and are not covered by the warranty.

3.3 Technical description

Weight: 2.14 kg

Size: 250 mm

Motor size: 68

Rotor surface: Painted black

Blade material: Sheet steel, painted black

Number of blades: 5

Airflow direction: V

Direction of rotation: Counterclockwise, viewed toward rotor

Degree of protection: IP44; installation- and position-dependent as per EN 60034-5

Insulation class: "F"

Moisture (F) / Environmental (H) protection class: H1+

Installation position: Shaft horizontal or rotor on bottom; rotor on top on request

Condensation drainage holes: On rotor side

Mode: S1

Motor bearing: Ball bearing

Touch current according to IEC 60990 (measuring circuit Fig. 4, TN system) with cable: < 0.75 mA

Protection class: I (with customer connection of protective earth)

Conformity with standards: EN 60335-1, motor does not have factory-installed overheating protection

Approval: CCC; EAC; UL 1004-1; CSA C22.2 No. 100

3.4 Mounting data

• Secure the screws against unintentional loosening (e.g. use self-locking screws).
• For screw clearance, see Chapter 3.1 Product drawing.
• Strength class of screws: 8.8

Any further mounting data required can be taken from the product drawing or Section Chapter 4.1 Mechanical connection.

3.5 Transport and storage conditions

Max. permitted ambient temp. for motor (transport/storage): +80 °C

Min. permitted ambient temp. for motor (transport/storage): -40 °C

4. CONNECTION AND STARTUP

4.1 Mechanical connection

CAUTION
Cutting and crushing hazard when removing fan from packaging.

• Carefully remove the device from its packaging, grasping it by only the blades near the hub. Strictly avoid shocks.
• Wear safety shoes and cut-resistant safety gloves.

NOTE
Damage to the device from vibration. Bearing damage, shorter service life.

• The fan must not be subjected to force or excessive vibration from sections of the installation.
• If the fan is connected to air ducts, the connection should be isolated from vibration, e.g. using compensators or similar elements.
• Ensure stress-free attachment of the fan to the substructure.

• Check the device for transport damage. Damaged devices are not to be installed.
• Install the undamaged device in accordance with your application.

CAUTION
Possible damage to the device.

If the device slips during installation, serious damage can result.

• Ensure that the device is securely positioned at its place of installation until all fastening screws have been tightened.
• The fan must not be strained on fastening.

4.2 Electrical connection

DANGER
Voltage on the device ⚡ Electric shock

• Always connect a protective earth first.
• Check the protective earth.

DANGER
Faulty insulation ⚡ Risk of fatal injury from electric shock

• Use only cables that meet the specified installation regulations for voltage, current, insulation material, capacity, etc.
• Route cables so that they cannot be touched by any rotating parts.

CAUTION
Voltage.

The fan is a built-in component and has no disconnecting switch.

• Only connect the fan to circuits that can be switched off with an all-pole disconnection switch.
• When working on the fan, secure the system/machine in which the fan is installed so as to prevent it from being switched back on.

NOTE
Water ingress into wires or cables. Water ingress at the customer end of the cable can damage the device.

• Make sure the end of the cable is connected in a dry environment.

• Only connect the device to circuits that can be switched off with an all-pole disconnection switch.

4.2.1 Requirements

• Check whether the information on the nameplate matches the connection data.
• Before connecting the device, make sure the power supply matches the device voltage.
• Only use cables designed for the current level indicated on the nameplate.

For determining the cross-section, note the sizing criteria according to EN 61800-5-1. The protective earth must have a cross-section equal to or greater than that of the phase conductor.

We recommend the use of 105 °C cables. Ensure that the minimum cable cross-section is at least AWG 26/0.13 mm².

Protective earth contact resistance according to EN 60335

Compliance with the resistance specifications according to EN 60335 for the protective earth connection circuit must be verified in the end application. Depending on the installation situation, it may be necessary to connect an additional protective earth conductor by way of the extra protective earth terminal provided on the device.

4.2.2 Voltage control

NOTE
Current overshoots may occur if speed control is implemented by transformers or electronic voltage regulators (e.g. phase control). Depending on the type of installation of the device, noise and vibration may also occur in the case of phase control. Vibration can lead to bearing damage and thus premature failure.

4.2.3 Variable frequency drive

Please use a variable frequency drive only after consultation with ebm-papst.

For operation with variable frequency drives, install sinusoidal filters that work on all poles (phase-phase and phase-ground) between the drive and the motor.

During operation with variable frequency drives, an all-pole sine filter protects the motor against high-voltage transients that can destroy the coil insulation system, and against harmful bearing currents.

Heating-up of the motor when using a variable frequency drive must be checked by the customer following installation in the end device.

4.3 Connecting the cables

The device has external leads.

• First connect the "PE" (protective earth).
• Connect the cables according to your application. When doing so, observe Chapter 4.4 Connection diagram.

4.3.1 Cable routing

Water must be prevented from reaching the cable exit along the cable.

NOTE
Damage caused by moisture penetration.

Moisture can penetrate into the terminal box if water is constantly present at the cable glands.

• To prevent the constant accumulation of water at the cable glands, the cable should be routed in a U-shaped loop wherever possible.
• If this is not possible, a drip edge can be produced by fitting a cable tie directly in front of the cable gland for example.

Diagram: Fans installed lying flat, cable routed in a U-shaped loop.

Diagram: Fans installed upright. The cables must always be routed downward.

4.3.2 Motor protection

WARNING
Device has no overheating protection.

The device is supplied without any automatic overheating protection. The device can become hot and catch fire.

• For the version without thermal overload protector, also install a suitable motor protection switch.

4.4 Connection diagram

Diagram: Electrical connection diagrams for a three-phase motor, showing star connection (①) and the alternative connection (②) for changing rotation direction.

Change of rotation direction by reversing two phases

4.5 Checking connections

• Ensure isolation from supply (all phases).
• Make sure a restart is impossible.
• Check the cables for proper fit.

4.6 Switching on the device

The device may only be switched on if it has been installed properly and in accordance with its intended use, including the required safety mechanisms and professional electrical hookup. This also applies for devices which have already been equipped with plugs and terminals or similar connectors by the customer.

• Check the device for visible external damage and make sure the protective devices are functional.
• Check the fan's air flow paths for foreign matter and remove any foreign matter found.
• Apply the nominal supply voltage.

NOTE
Damage to the device from vibration. Bearing damage, shorter service life.

Low-vibration operation of the fan must be ensured over the entire speed control range.

• Severe vibration can arise for instance from inexpert handling, transportation damage and resultant imbalance or be caused by component or structural resonance.
• Speed ranges with excessively high vibration levels and possibly resonant frequencies must be determined in the course of fan commissioning.
• Either run through the resonant range as quickly as possible with speed control or find another remedy.
• Operation with excessively high vibration levels can lead to premature failure.

4.7 Switching off the device

• Disconnect the device from the power supply at the supply line's main switch.
• When disconnecting, be sure to disconnect the ground connection last.

5. MAINTENANCE, MALFUNCTIONS, POSSIBLE CAUSES AND REMEDIES

Do not perform any repairs on your device. Send the device to ebm-papst for repair or replacement.

WARNING
Live terminals and connections even with device switched off ⚡ Electric shock

• Wait five minutes after disconnecting the voltage at all poles before opening the device.

CAUTION
The motor restarts automatically when operating voltage is applied, e.g. after a power failure. ⚡ Risk of injury

• Keep out of the device's danger zone.
• When working on the device, switch off the line voltage and ensure that it cannot be switched back on.
• Wait until the device comes to a stop.

NOTE
If the device is not operated for a lengthy period in installed condition in a dry environment, it is to be started up and operated at full speed for one hour at least every four months. If the device is not operated for a lengthy period in installed condition in a damp environment (e.g. outdoors), it is to be started up and operated at full speed for at least two hours once a month to move the bearings and allow any condensate that may have ingressed to evaporate.

In the event of further malfunctions, contact ebm-papst.

5.1 Cleaning

NOTE
Damage to the device during cleaning. Malfunction possible.

• Do not clean the device using a water jet or high-pressure cleaner.
• Do not use any acid, alkali or solvent-based cleaning agents.
• Do not use any pointed or sharp-edged objects for cleaning.

5.2 Safety inspection

5.3 Disposal

For ebm-papst, environmental protection and resource preservation are top priority corporate goals.

ebm-papst operates an environmental management system which is certified in accordance with ISO 14001 and rigorously implemented around the world on the basis of German standards.

Right from the development stage, ecological design, technical safety and health protection are fixed criteria.

The following section contains recommendations for ecological disposal of the product and its components.

5.3.1 Country-specific legal requirements

NOTE
☑ Country-specific legal requirements

Always observe the applicable country-specific legal regulations with regard to the disposal of products or waste occurring in the various phases of the life cycle. The corresponding disposal standards are also to be heeded.

5.3.2 Disassembly

Disassembly of the product must be performed or supervised by qualified personnel with the appropriate technical knowledge.

The product is to be disassembled into suitable components for disposal employing standard procedures for motors.

WARNING
Heavy parts of the product may drop off. Some of the product components are heavy. These components could drop off during disassembly.

This can result in fatal or serious injury and material damage.

• Secure components before unfastening to stop them falling.

5.3.3 Component disposal

The products are mostly made of steel, copper, aluminum and plastic. Metallic materials are generally considered to be fully recyclable.

Separate the components for recycling into the following categories:

• Steel and iron
• Aluminum
• Non-ferrous metal, e.g. motor windings
• Plastics, particularly with brominated flame retardants, in accordance with marking
• Insulating materials
• Cables and wires
• Electronic scrap, e.g. circuit boards

Only ferrite magnets and not rare earth magnets are used in external rotor motors from ebm-papst Mulfingen GmbH & Co. KG.

Ferrite magnets can be disposed of in the same way as normal iron and steel.

Electrical insulating materials on the product, in cables and wires are made of similar materials and are therefore to be treated in the same manner.

The materials concerned are as follows:

• Miscellaneous insulators used in the terminal box
• Power cables
• Cables for internal wiring
• Electrolytic capacitors

Dispose of electronic components employing the proper procedures for electronic scrap.

• Please contact ebm-papst for any other questions on disposal.