micronel D241 User manual

OPERATING MANUAL
Micronel Fans & Blowers
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U50 U51 U64 U65
U81 U97 U100 U150 U71 U80 U85
D240 D300 D340 D480 D600
D800 F62
D460 D590
D760

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PRODUCT OVERVIEW
Standard Product Ranges
Micronel Tube Fan D241
Micronel Tube Fan D243
Micronel Tube Fan D244
Micronel Tube Fan D301
Micronel Tube Fan D303
Micronel Tube Fan D304
Micronel Tube Fan D341
Micronel Tube Fan D343
Micronel Tube Fan D344
Micronel Tube Fan D461
Micronel Tube Fan D481
Micronel Tube Fan D483
Micronel Tube Fan D484
Micronel Tube Fan D485
Micronel Tube Fan D591
Micronel Tube Fan D601
Micronel Tube Fan D603
Micronel Tube Fan D604
Micronel Tube Fan D605
Micronel Tube Fan D606
Micronel Tube Fan D761
Micronel Tube Fan D801
Micronel Tube Fan D803
Micronel Tube Fan D804
Micronel Flat Fan F62
Product Identification
Standard Products
For standard products the last
character of the product no. is
provided with a number.
Example U85MX-024KX-4
Customized Products
For customized products the last
character of the product no. is
provided with a letter instead of
a number.
Example U85MX-024KX-H
Standard Product Ranges
Micronel Radial Blower U50
Micronel Radial Blower U51
Micronel Radial Blower U64
Micronel Radial Blower U65
Micronel Radial Blower U71
Micronel Radial Blower U80
Micronel Radial Blower U81
Micronel Radial Blower U85
Micronel Radial Blower U97
Micronel Radial Blower U100
Micronel Radial Blower U150

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CONTENTS
1. General Information
1.1 Information About This Manual 3
1.2 Depiction of the Warning Information 3
2. Basic Safety Instructions
2.1 Proper Use 4
2.2 Improper Use 4
2.3 Operation Outside of Specified Ranges 5
3. . Delivery, Transport and Storage
3.1 Delivery 5
3.2 Transport 5
3.3 Storage 5
4. Description
4.1 Nameplate 6
4.2 Technical Data 6
5. Assembly
5.1 Safety Instructions 6
5.2 Fastening 7
5.3 Assembly 7
5.4 Electrical Installation 7
6. Commissioning
6.1 Check Prior to Commissioning 7
6.2 Initial Commissioning 8
7. Operation
7.1 Speed Control 8
8. Decommissioning 9
9. Maintenance 10
10. Cleaning 10
11. Inspection 11
12. Malfunctions 11
13. Disposal 11

1. GENERAL INFORMATION
1.1 Information About This Manual
This Manual contains important information for safe and proper use of the product. The Manual is an integral part of the
product‘s documentation and must be kept accessible to users at the site of operation at all times.
Before operating products, users must have read and understood this Manual. A prerequisite for safe working is the
observance of all safety instructions in this Manual. The information given here does not exempt the user from
undertaking his or her own assessments and tests. It should be noted that the products are subject to a natural process of
wear and aging. All rights of disposal such as copying and distribution rights are reserved for Micronel. The original edition
of this Operating Manual is issued in German.
Please check www.micronel.com - Downloads whether the Operating Manual is available in a product specific version, in
a revised version or in your language.
1.2 Depiction of the Warning Information
WARNING CAUTION NOTE
Failure to do so may
result in serious injury
or death.
Failure to do so may
result in minor or
moderate injury.
Information to prevent
property damage.
ENVIRONMENTAL
PROTECTION
Information on
environmental
protection.
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2. BASIC SAFETY INSTRUCTIONS
Danger Due to Improper hHandling of the Product
This Operating Manual describes the safe use of the products. Read the Operating Manual
carefully prior to commissioning! Keep the Operating Manual with the product. It must be
available at the site of operation at all times.
•The product is built according to the latest technology and is safe to operate. However, hazards may arise from
this machine if it is installed, operated or maintained by persons who have not been instructed about the hazards
involved.
•The product may only be installed and commissioned by authorized personnel. The installation or maintenance
personnel must have received special instruction as defined in this Operating Manual regarding any hazards that
may occur.
•In principle, all work on the product must only be carried out when it is at a standstill and in a de-energized state.
Only remove the protective devices when the product is at a standstill. Before starting up, check that the protective
devices (protective grids if included in the scope of delivery) are in place.
•Unauthorized conversions and modifications to the product are not permitted.
•The suction or discharge opening of the product must be secured against the falling in and sucking in of foreign objects.
2.1 Proper use
The operator must ensure that the product is only used for its intended purpose and only operated in perfect working
order, and that the safety devices in particular are regularly checked for proper functioning.
•The product is used to extract, convey and compress the following gases: Air, other gases that are not explosive,
flammable, chemically reactive or corrosive.
•O2applications are prohibited unless otherwise specified.
2.2 Improper use
In particular, the following are contrary to the intended purpose and dangerous:
•Operation in an ignitable or dusty, combustible dust or gas atmosphere.
•Dust layer on the surface of the product and/or the motor.
•Unauthorized conversions or modifications to the product.
•Conveying of aggressive media, such as acids, alkalis, solvents, aggressive or abrasive gases.
•Conveying of liquids, solids or contaminated gases.
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Risk of Injury
•Cover long hair with a hair net or cap
•Wear tight-fitting clothing
•Do not wear scarves, long necklaces or bracelets

3. DELIVERY, TRANSPORT AND STORAGE
Risk of Injury
Do not operate the device if there is visible transport damage. Contact manufacturer.
3.1 Delivery
Each device leaves our factory in perfect electrical and mechanical condition. The contents of the package are listed on the
delivery bill, the completeness of which must be checked upon receipt. Inspect the products for obvious defects that could
impair safe operation. Pay particular attention to damage to the fan wheel or cracks in the housing.
3.2 Transport
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Transport the product with care. The fan wheels in particular must be handled very carefully and must not be pressed on
or in with the fingers. Avoid knocks and blows to the product.
3.3 Storage
Reduced service life due to long storage time.
If the storage period is more than one year, this may reduce the service life of the product.
Measures after
decommissioning
or prior to storage
Measure prior to
recommissioning
after storage
Store the products in the original packaging, at temperatures as constant
as possible, while keeping them:
•Dust-tight
•Dry and protected from weather
•Vibration-free
Check the proper function of the product prior to installation.
2.3 Operation Outside of Specified Ranges
•In case of non-compliance, the warranty obligation of the manufacturer expires.

Micronel AG
CH-8317 Tagelswangen
Micronel Tube Fan
D481P-024KM-4
1234 123456 123
24 VDC
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4. DESCRIPTION
Micronel products are used to convey gaseous media. They are designed for cooling, ventilation and exhaust of devices
and components, and for air transport.
4.1 Label
Using the example below, the label can be identified as follows:
Article number
Nominal voltage
Identification number
•Year, calendar week (YYWW)
•Fabrication number (6 digits)
•Serial number (3 digits)
4.2 Technical Data
The technical data can be found in the respective product specification.
Example Specification_U85MX-024KX-4.pdf
5.1 Safety Instructions
Adhere to the following sequence to eliminate the risk of injury from rotating parts:
•Assemble
•Connect electrically
5. ASSEMBLY
Risk of Injury
The product must be opened in a fixed state.
Check the fixation regularly.
Risk of Injury
Secure the product and vulnerable connection parts against unintentional loosening (e.g. due to
vibrations); if necessary, fit appropriate safety elements.
Micronel Radial Blower
U85MX-024KX-4

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Assembly may only be carried out by trained specialist personnel who observe the applicable regulations.
Only assemble and use the product if:
•The product is undamaged.
•The fan wheel runs freely when turned by hand.
5.2 Fastening
When planning for the device, make sure that there is sufficient space around the product to facilitate assembly work.
5.3 Assembly
If present, remove transport covers and fuses.
When assembling the product, make sure that a specially designed holding device ensures proper fastening (without
distortion of the fan housing).
It is important that the product is carefully screwed to the appropriate holding device, and care must be taken that
any piping or adjacent components to be connected are assembled in such a way that forces are not applied to the
fan housing.
Before connecting any piping or other components, check that there are no foreign bodies in the fan housing.
5.4 Electrical Installation
Compliance With Electrical Installation Regulations
Install the connecting cable according to the use requirements and the respective local
regulations.
The product must be connected by qualified personnel who are familiar with the applicable safety regulations.
The performance data on the label (according to 4.1) must be observed.
6.1 Checks Prior to Commissioning
The following checks must be carried out prior to commissioning:
•Assembly and electrical installation are professionally completed
•Product is connected correctly according to specification
•Assembly residues and foreign bodies are removed from the fan compartment
•Carefully turn the fan wheel by hand and listen for unusual noises
(Grinding noises can occur at the fan wheel circumference, at the seals or in the bearings)
•Check protective devices
•Inspect cable / connector for damage
•Check tightness of accessible screws
6. COMMISSIONING

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Risk of Injury
Do not touch the fan wheel during operation.
6.2 Initial Commissioning
•Commissioning to be carried out only by trained and instructed users.
•The first switching on of the product has to be done only for a short time in order to check the direction of rotation.
•Compare direction of rotation with arrow on housing / fan wheel or according to specification.
•If the direction of rotation is incorrect, check the electrical connection and connect it correctly accordingly.
Checks after commissioning
•Monitor power consumption of the product.
•Monitor vibrations and noise development.
7. OPERATION
Danger From Ejecting Parts
•Ensure that no foreign objects can get into the fan.
•Do not look directly into the outlet opening.
•Wear safety glasses.
8
Risk of Injury
Do not touch the fan wheel during operation.
Risk of Burns
Burns from touching hot surfaces.
Increased surface temperatures are to be expected.
Danger From Ejecting Parts
•Ensure that no foreign objects can get into the fan.
•Do not look directly into the outlet opening.
•Wear safety glasses.

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•Sucking in of foreign particles can damage the product.
•Monitor the product during operation for its correct function.
7.1 Speed Control
During operation, the speed of the fan can be changed, so it is possible to adapt the operating point of the fan to a changing
operating point of the system. Further details on speed control in the respective specifications.
9
Risk of Injury
Magnetic and electromagnetic fields originate from the product.
Keep product away from objects that are sensitive to magnetic fields.
Risk of Injury
During operation vibrations may occur from the product.
Do not touch the product during operation.
Risk of Injury
Noise emissions from the product may be harmful to hearing.
Wear hearing protection.
Risk of Injury
Do not point the inlet or outlet directly at people or animals.
8. DECOMMISSIONING
Risk of Injury
Before starting work on the product
•De-energize
•Secure against restarting
•Determine the absence of voltage

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Ensure correct storage conditions (according to specification).
Inspect product for damage due to storage. Make sure that the insulation of
the stranded wires is not porous or damaged.
The fan is largely maintenance-free due to the use of ball bearings with permanent lubrication.
During normal operation, monitoring is limited to:
•Checking the ball bearings (noises).
•Checking contamination of the fan wheel in order to detect imbalance of the fan wheel on a timely basis
and to prevent imbalance.
9. MAINTENANCE
In case of dirt or dust deposits:
•Clean surfaces of the entire product, use a damp cloth for this purpose.
In case of stubborn dirt, a cleaning agent compatible with the materials should be used.
•Cleaning with solvents or the like is prohibited.
•The fan wheel must be cleaned with due care, i.e. with minimal effort.
10. CLEANING
Measures after
decommissioning
or prior to storage
Measure prior to
recommissioning
after storage
Risk of Injury
Product may only be opened by qualified personnel.
Only open the product when it is de-energized.

Malfunctions Causes Remedy
Fan wheel does not rotate Mechanical blocking Disconnect the power supply,
remove blockage
Connection failure Check connections according
to pin assignment
Fan power too low Speed too low Check voltage
Suction or pressure paths are blocked Remove obstructions
Power consumption too high Incorrect supply voltage Check supply voltage
Unusual sounds Bearing damage Replace product
Fan wheel is touching or has
imbalance
Clean product
If imbalance persists, replace
product
Foreign objects in the product Remove foreign objects
Oscillations / vibrations Fastening screws loose Retighten screws
Turbulence in the system Check air flow in the system
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11. INSPECTION
12. MALFUNCTIONS
Point in time Checks Means of checking
Annually, at standstill General condition Visual inspection
Annually, during operation Noise /bearing condition Acoustic inspection
Vibrations Visual inspection
13. DISPOSAL
Micronel products are small electrical appliances according to WEEE 2012/19 /EU. They must be
disposed of in accordance with the customary national regulations.
The products are delivered in cardboard or plastic packaging. Keep the packaging
for repackaging the product or dispose of it according to local regulations.

Micronel AG
Zürcherstrasse 51
CH-8317 Tagelswangen
Phone [phone]
[email protected]
www.micronel.com
All data are subject to change without advanced notice.
© 2022 by Micronel AG. All rights reserved.
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11.07.2022 / Rev.-Nr. 01 / EN