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Contents: 0.   

Preface to the operating instructions  

 
 

 

 

 

1.     Basic safety instructions 

   

   

   

 

 

 

       

1.1  

Warning symbols 

                  

1.2  

Conditions of use 

                  

1.3  

Organisational measures 

 

                 1.4  

Residual risks 

 

 

     

 

2.   

Transport and storage 

 

                   

3.   

Installation and commissioning 

 

 

                 3.1  

Instructions for the electrical system 

 

 

 

 

3.2  

Mounting options  

 

                 3.3  

Integration of the fan into the system / Mounting 

 

                 3.4  

Commissioning 

 

 

 

 

 

4.   

Operation and maintenance 

 
 

          

5.   

Repair instructions 

 

          

 

 

 

 

5.1  

Cleaning 

 

            

5.2  

Roof fans with an internal rotor motor (standard motor) 

 

      

 

5.3  

Roof fans with an external rotor motor (VRR/ALM) 

 

 

 

 

5.4  

Roof fans with an EC motor (VRR/ALM-EC) 

 

 

 

 

 

6.   

Additional information for explosion-proof fans    

 
 

 

 

     7.   

Waste disposal 

 
 

 

 

 

Declaration of Conformity 

01 

OPERATING INSTRUCTIONS 

           

 

       Radial roof fans

 

Series

 

VRR 

Original operating instructions 

  MIETZSCH GmbH Lufttechnik Dresden  

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  Großenhainer Str. 137  

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  01129 Dresden  

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  Tel (0351) 8433 150 

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  Fax (0351) 8433 160 

 

 

 

 

 

www.mietzsch.de

 

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mietzsch@mietzsch.de 

oi_vrr (11/09) 

Summary of Contents for VRR Series

Page 1: ...4 Operation and maintenance 5 Repair instructions 5 1 Cleaning 5 2 Roof fans with an internal rotor motor standard motor 5 3 Roof fans with an external rotor motor VRR ALM 5 4 Roof fans with an EC mot...

Page 2: ...correspond to that of pure air The medium must not contain foreign particles and has to be practically dustless Higher dust loads or impure gases with a tendency to produce deposits may cause damage C...

Page 3: ...pole changing motors install either two separate motor protection switches or one thermal winding protection PTC thermistor special design TS Fans with external rotor motors model ALM are equipped wi...

Page 4: ...in the supporting column For models VRR400 and VRR500 route the cable from below through the flexible protective hose to the motor Ensure that the cable is not abraded by fan components Check that th...

Page 5: ...ly motor with motor support ring and impeller The drive assembly is available as a spare part and can be replaced at the site without any special tools Attention For pressure controlled fans DR carefu...

Page 6: ...e Motors with a flameproof enclosure EEx de Motor protection devices with a current dependent delay and or PTC thermistors TS can be used Motors with increased safety EEx e do not have an approval for...

Page 7: ...riebene Arbeitsmittel Rausch Gesch ftsf hrer Dresden den 25 02 2013 D MIETZSCH GmbH Lufttechnik Gro enhainer Str 137 D 01129 Dresden EC Declaration of Conformity as defined by the EC Council Direktive...

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