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- Page 1 Original Operating and Assembly Instructions Radial Fan DN; WN; GR; WB-GR; GT; WB-GT; HR; DG; WR; HT; WT; DV; DGN; WGN; HG; WG; WV; FR; FL Document Article No. 261164 Published 03/2025...
- Page 2 Please use the separate Operating and Assembly Instructions for Dietz-motoren ATEX fans. The operator is responsible for ensuring that the fan is used as intended. Dietz-motoren will not accept any liability if its devices and components are not used as intended. In particular, this also applies to particular use and operating conditions that have not been expressly agreed with Dietz-motoren.
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Page 3: Table Of Contents
Additional Notices Transport and Installation Safety Notices Installation Site Installation and Mounting Disassembly and Transport General Operating Instructions Safety Notices Operating Instructions Connection to the Mains Power Supply Checking the Direction of Rotation Decommissioning the Radial Fan Disposal Dietz-motoren GmbH... -
Page 4: General Information
1 General Information Machine type Radial fan: DN; WN; GR; WB-GR; GT; WB-GT; HR; DG; WR; HT; WT; DV; DGN; WGN; HG; WG; WV; FR; FL Serial number: Manufacturer and service Dietz-motoren GmbH Kirchheimer Str.164 D-73265 Dettingen/Teck Germany Tel.-Nr.: +49 7021 57 02 - 0 Fax-Nr.: +49 7021 57 02 - 14... - Page 5 • The minimum volumetric flow must be at least 30% of the rated volumetric flow. • Depending on use, Dietz-motoren fans might leak if used with gases. There is no gas-tight seal between the fan’s interior and its exterior. If necessary, the operator must put suitable measures such as ventilation for the area surrounding the fan in place.
- Page 6 • Particular uses and operating conditions that can increase the potential risks. This information must be given to Dietz-motoren in advance and agreed upon. Intended use also includes: Observing all the instructions in the Operating and Assembly Instructions.
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Page 7: General Information
Repair and maintenance work without first shutting down the radial fan and securing it against unintentional restarting. NO MODIFICATIONS OR CONVERSIONS MAY BE MADE TO THE DESIGN OF THE FAN ACHTUNG SUPPLIED WITHOUT THE MANUFACTURER’S PRIOR APPROVAL. ANY NECESSARY TECHNICAL SAFETY PRECAUTIONS ARE EXPRESSLY EXCLUDED FROM THIS. Dietz-motoren GmbH... -
Page 8: Main Components
1 General Information Main components Image: 1.4 Radial fan No. Component name 1 Drive 2 Fan housing with impeller Dietz-motoren GmbH... -
Page 9: Operation
Alternatively, reduce the fan speed (if a frequency inverter is in use). To prevent this hazard from occurring again, do not undo these settings while the fan is in operation. The fan must not be subjected to impermissibly high vibration or shock loads. Dietz-motoren GmbH... -
Page 10: Safety
The fan must not be brought back into operation after any type of accident or disaster, e.g. objects colliding with the fan. In these cases, Dietz-motoren must be given access to the fan, or the fan must be returned to Dietz-motoren. The operator must document the causes of the incident and the surrounding circumstances before taking the fan out of operation. -
Page 11: Identification Of Notices In The
Safety notices that can cause hazards for the machine and its functions if not observed are indicated by the word Notices attached directly to the machine must be strictly observed and kept in a fully legible condition. WARNING Dietz-motoren GmbH... -
Page 12: Staff Qualification And Training
This instruction is usually carried out as part of a training course performed at the machine. Mandatory qualification If a staff member does not have the necessary knowledge, they must receive the appropriate training. The system operator is responsible for checking the operating staff’s specialist qualifications and for training them. Dietz-motoren GmbH... -
Page 13: Hazards If Safety Notices Are
Hazards to individuals due to electrical and mechanical effects Safe working practices The safety notices listed in these Operating and Assembly Instructions, existing national accident prevention regulations and any internal work, operating and safety regulations set down by the operator must be observed. Dietz-motoren GmbH... -
Page 14: Safety Notices For The Operating Staff
Dispose of waste produced during maintenance/repair in an environmentally sound manner. Unintended use The operational safety of the incomplete machine supplied is only guaranteed if it is used as intended according to Section 1 of these Operating and Assembly Instructions. Dietz-motoren GmbH... - Page 15 Imbalance/vibrations When the rotors and impellers in Dietz-motoren fans are delivered, they are balanced to at least balance quality G6.3, in accordance with the currently valid version of ISO 21940-1, or better. On delivery, the...
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Page 16: Hazards
Residual risks can be minimised by observing the safety notices and intended use practices, as well as by observing the Operating and Assembly Instructions as a whole. It is prohibited to operate this machine until it has been ensured that all the health and safety requirements as set out in the EC Machinery Directive have been met. Dietz-motoren GmbH... -
Page 17: Conduct In Hazardous Situations
Applicable binding regulations at the place of use Recognised technical regulations for safe and professional working Existing environmental protection regulations Other relevant regulations Information signs attached to the machine must be kept in a legible condition and must not be removed! Dietz-motoren GmbH... -
Page 18: Transport And Installation
Wear appropriate protective clothing when working. Check the supplied parts to ensure that they are complete and are free from damage or other abnormalities. Observe the applicable safety and accident regulations during transport. Wear the WARNING required protective equipment. Dietz-motoren GmbH... -
Page 19: Installation Site
3 Transport und Installation Installation site The nature, properties and ambient temperature of the installation site and the ambient medium used there must be appropriate for the particular fan. Dietz-motoren GmbH... -
Page 20: Installation And Mounting
Ensure that the motor is properly ventilated. Minimum distance between wall and cooling fan cover: 20 mm. THE RADIAL FAN MAY ONLY BE ASSEMBLED BY AN INSTRUCTED SPECIALIST! ACHTUNG Image: 3.1 Radial fan Nr. Component name 1 Drive 2 Fan housing with impeller Dietz-motoren GmbH... -
Page 21: Disassembly And Transport
Attach lifting tackle securely. Only use lifting tackle and accessories with a sufficient load-bearing capacity. If motors or units are fitted with shock sensors, check their status before installation. If the shock sensors have been triggered, the Dietz-motoren product/unit must be returned to the manufacturer for inspection. Dietz-motoren GmbH... -
Page 22: General Operating Instructions
Observe the safety notices set out in Section 2 of these Operating and Assembly Instructions. If applicable, when working with the radial fan, the documentation for the entire machine must be observed in addition to these Operating and Assembly Instructions. Dietz-motoren GmbH... -
Page 23: Operating Instructions
Do not continue operating the fan if vibration limit values are exceeded. Take immediate appropriate action to resolve the cause of the vibrations. Contact Dietz-motoren for advice. Vibration limit values:... -
Page 24: Connection To The Mains
Continued use of defective fans or their components, such as impellers, roller bearings, etc., might cause physical damage to them, injury or harm to the environment. All of the fan’s components must be disposed of professionally in accordance with national and international legislation and regulations. Dietz-motoren GmbH... -
Page 25: Maintenance And Inspection
Comply with the manufacturer’s maintenance specifications and the data provided for the switching and control devices. Repairs must only be carried out by the manufacturer. Any changes to operating conditions must be agreed with Dietz-motoren. Comply with all applicable regulations and manufacturer’s notes when performing maintenance tasks. -
Page 26: Notices
• For safety reasons, only specially trained service specialists from Dietz-motoren or a company authorised by Dietz-motoren are permitted to replace components and repair Dietz-motoren fans. If anyone else performs this work, this will result in loss of the warranty and Dietz-motoren will no longer accept any liability. -
Page 27: Fastening Elements
Only carry out cleaning work with suitable agents. After cleaning, remove all tools and check the function of the cleaned area. Only clean components when they are cold. 5.3.2 Fastening elements Before commissioning, check all the fastening elements to ensure that they are tight. Dietz-motoren GmbH...
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