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Tables

Table of screw tightening torques

 

Maximum tightening MA in Nm

 

Strength category

8.8

10.9

12.9

Sliding friction coefficient 

m

8

0.10

0.15

0.20

0.10

0.15

0.20

0.10

0.15

0.20

M8

20

25

30

30

37

44

35

43

52

M10

40

50

60

59

73

87

69

51

100

M12

69

87

105

100

125

151

120

148

177

M16

170

220

260

250

315

380

290

370

445

M20

340

430

520

490

615

740

570

700

840

M24

590

740

890

840

1050

1250

980

1250

1500

8

µ = 0.10 very good surface, lubricated

µ = 0.15 good surface, lubricated or dry

µ = 0.20 surface is black or phosphate-treated, dry

Table of permissible vibration velocities

According to ISO 14694 (2003), Chapter 8.4

State

Category

Max. vibration velocity,

securely assembled, [mm/s]

Max. vibration velocity, flex-

ibly assembled, [mm/s]

Commissioning

BV-2

5.6

 

9.0

 

BV-3

4.5

 

6.3

 

BV-4

2.8

 

4.5

 

Normal operation

BV-2

5.6 – 9.0

 

9.0 – 14.0

 

BV-3

4.5 – 7.1

 

6.3 – 11.8

 

BV-4

2.8 – 4.5

 

4.5 – 7.1

 

Alarm

BV-2

9.0 – 12.5

 

14.0 – 17.5

 

BV-3

7.1 – 9.0

 

11.8 – 12.5

 

BV-4

4.5 – 7.1

 

7.1 – 11.2

 

Shutdown

BV-2

≥ 12.5

 

≥ 17.5

 

BV-3

≥ 9.0

 

≥ 12.5

 

BV-4

≥ 7.1

 

≥ 11.2

 

Tables

 

 

Centrifugal fans REH; RZH; BVREH; BVRA

52

Summary of Contents for BVRA

Page 1: ...Centrifugal fans REH RZH BVREH BVRA Installation and operating manual Read the instructions prior to performing any task Fire gas versions checked according to EN 12101 3 GB en ...

Page 2: ...B en 2018 TROX X FANS GmbH Heinz Trox Str 1 36251 Bad Hersfeld Germany Telephone 49 6621 950 0 Fax 49 6621 950 100 email info xfans trox de Internet www trox xfans de 08 2019 Centrifugal fans REH RZH BVREH BVRA 2 ...

Page 3: ...ve 22 4 2 4 Fixing 22 4 2 5 Actuator 22 4 2 6 Additional equipment for centrifugal fans 22 5 Transport packaging and storage 24 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 6 Installation and commissioning 27 6 1 Safety 27 6 2 Installation 28 6 2 1 Assembly o...

Page 4: ...12 Index 44 Appendix 46 A Commissioning report 47 B Maintenance report 49 C Tables 52 D Installation manuals 55 Table of contents Centrifugal fans REH RZH BVREH BVRA 4 ...

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Page 7: ...rement analysis and evaluation of all the data required for operation e g pressure volume sound vibrations Operational balancing Replacement parts service Individual advice and help placing orders General Customer service Centrifugal fans REH RZH BVREH BVRA 7 ...

Page 8: ...als specified in this manual are observed The system owner must have all safeguards tested regularly to ensure that they are functional and com plete 2 2 Personnel requirements 2 2 1 Qualifications WARNING Danger of injury due to insufficiently qualified individuals Incorrect use may cause considerable injury or damage to property Therefore Only specialist personnel must carry out work The followi...

Page 9: ...dous situa tions Therefore Only use the unit for its correct use Strictly comply with all of the information in this operating manual Claims of any type for damages resulting from incorrect use will not be accepted The system owner is solely responsible for all damages resulting from incorrect use 2 4 Explosion protection ATEX Product Directive 2014 34 EU ATEX 95 The aim of the Directive is to pro...

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Page 12: ...ecessary Moving components WARNING Risk of injury due to moving components Moving components can cause serious injuries Do not reach into or handle moving components during operation Never open covers during operation The fan does not stop immediately Check that no components are moving before you open the covers Wear tight fitting clothing with low tear resistance in the hazardous area Rotating p...

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Page 14: ...ty chain This does not apply to smoke exhaust fans Connect the emergency stop equipment in such a way that any hazardous situations for individuals and prop erty are excluded in the event of the power supply being interrupted or the power supply being activated fol lowing an interruption The emergency stop equipment must be freely acces sible at all times 2 8 Behaviour in the event of haz ardous s...

Page 15: ...Fig 4 Terminal box The Fig 4 1 Danger of death due to electric current symbol is attached to the terminal box Safety Labelling Centrifugal fans REH RZH BVREH BVRA 15 ...

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Page 17: ...ype of electric motor that is installed rating plate of electric motor see Ä 3 7 Rating plate on page 20 3 4 Noise emission values The characteristic noise values of the fans are specified in the characteristic curve sheets in the catalogue product configurator The characteristic values are dependent on the operating point Technical data Noise emission values Centrifugal fans REH RZH BVREH BVRA 17...

Page 18: ...t temperature 20 40 C Max operating time 24 hrs day Smoke extract None Installation horizontal 3 Other values upon request 3 5 1 Information on setting up fans that are installed outdoors 3 5 1 1 Penetration of precipitation 3 5 1 2 Formation of condensation 3 5 1 3 Stability 3 5 1 4 Penetration of foreign matter 3 6 Operating modes 3 6 1 S1 continuous operation The fans are designed for continuou...

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Page 20: ...d to demonstrate product conformity 3 7 Rating plate Fig 13 Fan s rating plate Manufacturer Year of manufacture Manufacturing no Part no Type Volume flow rate Speed Motor rating Total pressure increase Voltage V frequency Hz The rating plate of the explosion proof fan also includes the following information Explosion protection mark Category Fig 14 Electric motor s rating plate Technical data Rati...

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Page 23: ...VME shaft is prelaid to the fan The open end is attached to the fan as a ring for transport purposes During the installation of the VME this measuring hose is connected to the ring measuring cable of the VME shaft For more infor mation see the separate instructions Parts and function Description of the sub assembly Additional equipment for centrifugal fan Centrifugal fans REH RZH BVREH BVRA 23 ...

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Page 35: ...tarting torque is too low for ramping up Replace the motor or provide a start up system Skilled qualified electrician Air volume flow rate is incorrect Direction of rotation of fan is incorrect A centrifugal fan always blows air out even if it is rotating in the incorrect direction Change the direction of rotation by switching two live wires on the terminals Skilled qualified electrician Impeller ...

Page 36: ...its Please note that the system consisting of the impeller crankshaft belt pulleys and belt always has a residual imbalance even if all of the components are balanced Clean and rebalance the impeller Instructed person Belt pulleys have an inadmissible unbalance Rebalance the system Instructed person Belt knocking too much Retention the belt Instructed person Vibration isolators are assembled or po...

Page 37: ...person Bearing running dry Regrease bearing according to table Instructed person Bearing temperature too high Not enough grease or greased is used up Regrease bearing according to table Instructed person Bearing defective Replace bearing Instructed person V belt pre tension too high Correct V belt pre tension Instructed person 8 3 Commissioning once a fault has been rectified Once the fault has be...

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Page 44: ...ion manuals 40 Belt drive 58 REH disassembly of the impeller 56 Removal assembly of the complete rotor set type RZH 57 Variant 8 heavyweight bearing 60 Variant 9 lightweight bearing 62 Installation outdoors 18 Instruction 8 35 36 37 38 Isolator 13 22 L Liability for defects 6 Limitation of liability 6 List of faults 35 Lists of replacement parts 6 Lubrication 40 M Maintenance 6 39 Maintenance repo...

Page 45: ...an rating groups 53 Impeller gap for centrifugal fans 53 Permissible vibration velocities 52 Screw tightening torques 52 Tightening torques of the taper lock clamping bushes 54 Technical data 16 Terminal box 22 Transport 24 25 Crane 25 Forklift 25 Lashing lugs 25 Transport packaging and storage 24 Type code 16 Types BVRA 17 BVREH 17 REH B M 16 REH M3 16 REH R 17 RZH 17 U Unauthorised persons 9 V V...

Page 46: ...Appendix Appendix Centrifugal fans REH RZH BVREH BVRA 46 ...

Page 47: ...Installation Vertical installation location Horizontal installation location Fan assembled on vibration isolators Fan assembled with flexible connectors Checklist Before commissioning the system must be checked using the following checklist If all the points on the checklist have been met the fan is ready for commissioning using the control installed on the customer s premises No Check 1 Fan is fr...

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Page 49: ... h Vibrations axial mm s Vibrations radial mm s Speed rpm Checklist Ä Table on page 50 filled out 1 If the measured value of the current is recorded using the current probe on the fan terminal box and star delta circuit the measured value must be multiplied by Ö3 and logged If the nominal current is exceeded the cause must be determined and eliminated according to Notes Maintenance carried out by ...

Page 50: ...ctional check 20 minutes 2 Check the direction of rotation Check the electric motor s current consumption Measurement and evaluation of the bearing condition Read off the VD display check traffic lights and display values or read out data To be performed annually by specialist personnel Check the vibration state 3 2 Note In the construction with VD the first functional check is automatically saved...

Page 51: ...bearings 5 2 Note In the construction with VD the first functional check is automatically saved as the reference run This is used as a comparison for all subsequent functional checks under the same operating conditions 3 The values specified in the operating manual must be observed The values must be determined according to ISO 14694 4 The service life of the bearings is generally 20 000 h but the...

Page 52: ...very good surface lubricated µ 0 15 good surface lubricated or dry µ 0 20 surface is black or phosphate treated dry Table of permissible vibration velocities According to ISO 14694 2003 Chapter 8 4 State Category Max vibration velocity securely assembled mm s Max vibration velocity flex ibly assembled mm s Commissioning BV 2 5 6 9 0 BV 3 4 5 6 3 BV 4 2 8 4 5 Normal operation BV 2 5 6 9 0 9 0 14 0 ...

Page 53: ...al fans Size Impeller gap tolerance in mm Immersion depth tolerance in mm 315 1 5 3 0 2 0 5 0 355 1 5 3 0 2 0 5 0 400 2 0 3 0 2 0 6 0 450 2 0 3 0 2 0 6 0 500 3 0 3 0 3 0 7 0 560 3 0 3 0 3 0 7 0 630 4 0 3 0 4 0 8 0 710 4 0 3 0 4 0 8 0 800 4 0 3 0 4 0 8 0 900 4 0 3 0 4 0 8 0 1000 5 0 3 0 5 0 8 0 1120 5 0 4 0 5 0 8 0 1250 6 0 4 0 5 0 10 0 1400 6 0 6 0 8 0 10 0 1600 7 0 6 0 8 0 10 0 Tables Centrifugal...

Page 54: ...g bushes tightening torques Bush type Screw tightening torques in Nm 1008 5 7 1108 5 7 1210 20 1215 20 1310 20 1610 20 1615 20 2012 31 2517 49 3020 92 3030 92 3035 115 4040 172 4545 195 5050 275 Tables Centrifugal fans REH RZH BVREH BVRA 54 ...

Page 55: ...the impeller 56 D 2 Type RZH removal assembly of the complete rotor set 57 D 3 Belt drive 58 D 4 Bearing 59 D 4 1 Bearing variant 8 heavyweight bearing 60 D 4 2 Bearing variant 9 lightweight bearing 62 Installation manuals Centrifugal fans REH RZH BVREH BVRA 55 ...

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Page 57: ...nal size 400 1000 1 Step 1 8 in reverse order proceed as under Ä on page 57 2 Align the bellmouth inlet airway width S according to TROX X FANS drawing Removal of nominal size 1120 1600 1 De energize the fan 2 Remove the V belt drive and belt protection box 3 Secure the rotor set against falling 4 Disassembly of the bearing Ä Heavyweight bearing TROX X FANS Variant 8 on page 60 and Ä Dis assembly ...

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Page 59: ...D 4 Bearing WARNING Attention Observe the Occupational safety section Ä 2 Safety on page 8 Installation manuals Centrifugal fans REH RZH BVREH BVRA 59 ...

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Page 63: ...Centrifugal fans REH RZH BVREH BVRA 63 ...

Page 64: ... 2018 TROX X FANS GmbH Heinz Trox Str 1 36251 Bad Hersfeld Germany 49 6621 950 0 49 6621 950 100 info xfans trox de www trox xfans de ...

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