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1.1 About this manual........................................ 5
1.2 Explanation.................................................. 5
1.3 Limitation of liability..................................... 6
1.4 Copyright..................................................... 6
1.5 Replacement parts...................................... 6
1.6 Liability for defects....................................... 6
1.7 Customer service......................................... 6
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2.1 System owner's responsibility..................... 8
2.2 Personnel requirements.............................. 8
2.2.1 Qualifications............................................ 8
2.2.2 Unauthorised persons.............................. 9
2.3 Correct use.................................................. 9
2.4 Explosion protection.................................... 9
2.5 Personal protective equipment.................. 11
2.6 Specific hazards........................................ 12
2.7 Safeguards................................................ 13
2.8 Behaviour in the event of hazardous situa-
tions or accidents...................................... 14
2.9 Labelling.................................................... 14
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3.1 Design versions......................................... 16
3.1.1 Type codes for centrifugal fans.............. 16
3.1.2 Additional labelling................................. 16
3.2 Series........................................................ 16
3.2.1 Type REH-M3......................................... 16
3.2.2 Type REH-B-M....................................... 16
3.2.3 Type REH-R........................................... 17
3.2.4 Type RZH............................................... 17
3.2.5 Type BVREH.......................................... 17
3.2.6 Type BVRA............................................. 17
3.3 Connection values..................................... 17
3.4 Noise emission values............................... 17
3.5 Operating conditions................................. 18
3.5.1 Information on setting up fans that are
installed outdoors................................... 18
3.6 Operating modes....................................... 18
3.6.1 S1 continuous operation......................... 18
3.6.2 S9 speed-controlled operation............... 18
3.6.3 Smoke extract........................................ 19
3.7 Rating plate............................................... 20
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4.1 Overview.................................................... 21
4.2 Description of the sub-assembly............... 21
4.2.1 Casing.................................................... 21
4.2.2 Impeller................................................... 21
4.2.3 Belt drive................................................ 22
4.2.4 Fixing...................................................... 22
4.2.5 Actuator.................................................. 22
4.2.6 Additional equipment for centrifugal
fans......................................................... 22
Transport, packaging and storage
5.1 Safety notes regarding transport............... 24
5.2 Checking delivered goods......................... 24
5.3 Packaging.................................................. 24
5.4 Symbols on the packaging........................ 25
5.5 Factory settings......................................... 25
5.6 Transport................................................... 25
5.7 Storing packages....................................... 26
Installation and commissioning
6.1 Safety........................................................ 27
6.2 Installation................................................. 28
6.2.1 Assembly of the fan................................ 28
6.2.2 Additional smoke extract work................ 29
6.2.3 Assembly of the flexible connector......... 30
6.2.4 Assembly of V-pulleys for anti-vibration
elements................................................. 30
trol dampers........................................... 30
6.3.2 Reversing the direction of rotation.......... 30
6.3.3 Explosion-proof fans............................... 31
6.3.4 Correct initial commissioning.................. 31
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8.1 Safety........................................................ 33
8.2 List of faults............................................... 35
8.3 Commissioning once a fault has been rec-
tified........................................................... 37
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9.1 Personnel requirements............................ 38
9.2 Safety........................................................ 38
9.3 Maintenance.............................................. 39
9.3.1 Use of monitoring systems..................... 40
9.4 Maintenance.............................................. 40
9.4.1 Lubrication.............................................. 40
9.4.2 Replacing the motor bearings................ 40
9.5 Repair........................................................ 40
9.5.1 Replacing the impeller and electric
motor...................................................... 40
9.6 Measures following maintenance work..... 41
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Table of contents
Centrifugal fans REH; RZH; BVREH; BVRA
3