Joh. Müller Kunststoff ML 75 User manual

Lescheider Weg 6-8 • D-53773 Hennef-Bierth • Tel. [phone] • Fax -79 • www.kunststoff-mueller.de
High performance radial fans
Series
ML/ MLF/ MLT 75 and 110
Operating Instructions 06/2013

Lescheider Weg 6-8 • D-53773 Hennef-Bierth • Tel. [phone] • Fax -79 • www.kunststoff-mueller.de
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Introduction
Manufacturer and suppliers
Declaration of conformity
Subject matter of the operating instructions
Symbols used
Safety instructions
Product description
Planning use
Installation and assembly
Commissioning
Operation
Maintenance, cleaning and repair
Warranty
Appendices A.x
1
2
3
4
5
6
7
8
9
10
11
12
Ax
13

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Table of contents
1Introduction................................................................................................................................... 5
2Manufacturer and suppliers......................................................................................................... 6
2.1 Manufacturer................................................................................................................................................6
2.2 Customer Service........................................................................................................................................6
2.3 Suppliers ......................................................................................................................................................6
3Declaration of conformity ............................................................................................................ 7
3.1 EU Declaration of Conformity within the meaning of the EU Machinery Directive (2006/42/EU), Low
Voltage Directive 2006/95/EU and EMC Directive 2004/108/EU...............................................................7
4Subject matter of the operating instructions.............................................................................. 8
5Symbols used............................................................................................................................... 8
6Safety instructions ....................................................................................................................... 9
7Product Description ................................................................................................................... 11
7.1 Fan design..................................................................................................................................................11
7.1.1 ML 75 and ML 110 ..................................................................................................................................11
7.1.2 MLF / MLT 75 and MLF / MLT 110 .........................................................................................................11
7.2 Fan materials..............................................................................................................................................13
7.3 Proper use..................................................................................................................................................13
7.4 Improper use..............................................................................................................................................14
7.5 SPECIFICATIONS.......................................................................................................................................15
7.5.1 ML 75 and ML 110 ..................................................................................................................................15
7.5.2 MLF 75 and MLF 110..............................................................................................................................16
7.5.3 MLT 75 and MLT 110..............................................................................................................................17

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7.6 Labelling.....................................................................................................................................................18
7.7 Electricity supply.......................................................................................................................................19
8Planning use............................................................................................................................... 19
8.1 Transport....................................................................................................................................................19
8.2 Storage........................................................................................................................................................20
8.3 Disposal......................................................................................................................................................20
9Installation and assembly.......................................................................................................... 20
9.1 Electrical connection.................................................................................................................................21
10 Commissioning........................................................................................................................... 22
11 Operation .................................................................................................................................... 22
11.1 Troubleshooting ........................................................................................................................................22
12 Maintenance, cleaning and repair ............................................................................................. 25
12.1 Maintenance and cleaning........................................................................................................................25
12.2 Carrying out maintenance work...............................................................................................................26
12.3 Repair..........................................................................................................................................................27
13 Warranty...................................................................................................................................... 27
Appendix
A.1 Check list maintenance 28
A.2 bis A.5 Performance data 30
A.6 scope of delivery 34
A.7 Notes 39

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1 Introduction
These operating instructions
 Are to be considered part of the product.
 Are to be read carefully and thoroughly by the operator/s of the fan/s before
first use of same.
 The safety information contained herein must be adhered to.
 The operating instructions are to be passed on to subsequent owners and
operators of the equipment.
 Please contact Joh. Mueller Kunststoff GmbH if you have any queries. Do not
operate a fan if there is any doubt as to its proper condition or assembly.
 This/these fan/s may only be assembled, installed and operated by properly
qualified persons.
 Note the symbols used drawing attention to specific risks and supplying
information on same.
 The enclosed operating instructions for the motor must also be adhered to
and are a major part hereof.
 No liability whatsoever can be accepted for damage due to disregarding the
operating instructions.
 The operating instructions for the motor installed can be downloaded from the
Joh. Mueller Kunststoff GmbH web site as a pdf file. Same can be supplied by
us in hardcopy form if desired.

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2 Manufacturer and suppliers
2.1 Manufacturer
Joh. Mueller Kunststoff GmbH
Lescheider Weg 6-8 Tel. [phone]
53773 Hennef-Bierth Fax. [phone]
Germany Internet. www.kunststoff-mueller.de
2.2 Customer Service
Joh. Mueller Kunststoff GmbH
Lescheider Weg 6-8 Tel. [phone]
53773 Hennef-Bierth Fax. [phone]
Germany Internet. www.kunststoff-mueller.de
2.3 Suppliers
See the appendix on scope of delivery

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3 Declaration of conformity
3.1 EU Declaration of Conformity within the meaning of the EU Machinery Directive
(2006/42/EU), Low Voltage Directive 2006/95/EU and EMC Directive 2004/108/EU
Joh. Mueller Kunststoff GmbH, Lescheider Weg 6-8, D-53773 Hennef-Bierth, declare that the machine
described below complies in its design and construction and in the version marketed by them with the
applicable health and safety requirements of the EU Machinery Directive and the requirements of the
EMC and Low Voltage Directives. This declaration becomes invalid should the machinery be modified
without our consent.
Machine description Radial fan
Machine type Series ML-/ MLF-/ MLT- 75 and -110 Ex
Machine no. See Appendix A6
Relevant EU Directives
Directive / standard Text
2006/42//EU EU Machinery Directive - Directive of the European Parliament and Council
on Machinery
2006/95/EU Low Voltage Directive
2004/108/EU Electromagnetic Compatibility Directive
Harmonised standards applied:
DIN EN ISO 12100 Safety of Machinery - General Design Principles - Risk Evaluation and Risk
Reduction
DIN EN ISO 13857:2008 Safety of Machinery - Safety Spacing to Prevent Proximity to Danger Areas
of Upper and Lower Extremities
DIN EN 62079: 2001 Drafting instructions - classification, content and presentation
prEN 14461: 2002 Industrial fans - safety requirements
Applied national standards and technical specifications
VDMA 24 167: 1994 Fans; safety requirements
Name and address of the person authorised to put together the technical documentation:
Thomas Scheffler, Joh. Mueller Kunststoff GmbH, Lescheider Weg 6-8, D-53773 Hennef-Bierth
Hennef-Bierth, 27 May 2013
Thomas Scheffler, Managing Director

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4 Subject matter of the operating instructions
The operating instructions only apply to the fan/s supplied including assembly frame/s, flange/s and
motor/s. The interfaces for the ML series are the sleeves and for the MLF and MLT series the flanges
for connection to the piping system.
5 Symbols used
Caution. Non-compliance may result in injury or damage.
Note. Important information
Prohibition!
Danger due to electricity.
Hot surface
Risk of crushing
Risk of ingestion
General instruction (e.g. wear protective clothing)
Release before performing any work

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6 Safety instructions
As operator you’re responsible for
ensuring fans are only used if in technically problem-free condition, only for their
intended purpose and in compliance with these operating instructions.
Ensuring staff are aware that proper use includes adherence to the maintenance
requirements.
Ensuring technical and safety familiarisation of staff with the equipment. Staff
knowing the operating instructions.
Ensuring fan operation conditions are adhered to.
The fans can be operated up to a maximum ambient temperature of 40° C and in the
temperature ranges in table 4 with the pumping media. At operating temperatures exceeding
the maximum permissible (see table 4) the operator must determine and then exclude
additional risks.
Fan RPM can be safely limited (see scope of delivery in Appendix) – Maximum Permissible
RPM).
Protective clothing must be worn when performing assembly, repair or maintenance work on a
fan.
Electric power connection/s must be installed by a qualified electrician.
The motor must be electrically dead before work is carried out on a fan and also protected
against unauthorised / unintentional switching on by a maintenance switch with lock.
The fan has no shaft bushing and cannot be considered leakproof; absolute leakproofing cannot
be guaranteed and this includes flange connections.
Pumping media that may involve contamination make an upstream filter or mist eliminator
essential.
The fans ought to be installed in separate rooms for noise abatement reasons.
People should stay away from the fans, particularly the housings.

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The conformity declaration is rendered invalid if a fan is modified by e.g. adding a frequency
converter or metrology equipment, and the operator must then declare conformity themselves
after risk analysis.
Fan operating temperature may not fall below the lower melting point of the medium being
pumped.
Fluid drainage in the spiral housing must be continuous. The atmosphere in the interior must not
leak out, e.g. through immersion or use of a siphon.
Earth the fans using the earthing points provided.