Pfeiffer Vacuum MVP 020-3 AC User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
MVP 020-3 AC
Diaphragm pump

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new diaphragm pump is designed to
support you with its performance, perfect operation and without impacting your individual
application. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a
comprehensive and complete range of top-quality products and first-class service. From this
extensive, practical experience we have gained a large volume of information that can
contribute to efficient deployment and to your personal safety.
In the knowledge that our product must avoid consuming work output, we trust that our
product can offer you a solution that supports you in the effective and trouble-free
implementation of your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
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Table of contents
1 About this manual 7
1.1 Validity 7
1.1.1 Applicable documents 7
1.1.2 Variants 7
1.2 Target group 7
1.3 Conventions 7
1.3.1 Instructions in the text 7
1.3.2 Pictographs 7
1.3.3 Stickers on the product 8
1.3.4 Abbreviations 8
2 Safety 10
2.1 General safety information 10
2.2 Safety instructions 10
2.3 Safety precautions 13
2.4 Limits of use of the product 14
2.5 Proper use 14
2.6 Foreseeable improper use 14
2.7 Personnel qualification 14
2.7.1 Ensuring personnel qualification 15
2.7.2 Personnel qualification for maintenance and repair 15
2.7.3 Advanced training with Pfeiffer Vacuum 15
3 Product description 16
3.1 Function 16
3.1.1 Actuator 16
3.1.2 Pumping system 16
3.1.3 Cooling 16
3.2 Connections 17
3.3 Identifying the product 17
3.4 Scope of delivery 17
4 Transportation and Storage 18
4.1 Transporting the vacuum pump 18
4.2 Storing the vacuum pump 18
5 Installation 19
5.1 Setting up vacuum pump 19
5.2 Connecting the vacuum side 19
5.3 Connect exhaust side 20
5.4 Connecting to the mains power supply 21
6 Operation 23
6.1 Commissioning vacuum pump 23
6.2 Switching on vacuum pump 23
6.3 Pumping condensable vapors 24
6.4 Switching off the vacuum pump 25
7 Maintenance 26
7.1 Maintenance instructions 26
7.2 Checklist for inspection and maintenance 27
7.3 Replacing the device fuses 28
7.4 Change the diaphragms and valves 28
7.4.1 Dismantle the pump head and valves 29
7.4.2 Dismantling the diaphragms 30
7.4.3 Installing the diaphragm 30
7.4.4 Installing the pump head and valves 31
Table of contents
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7.5 Checking the final pressure 31
8 Decommissioning 33
9 Recycling and disposal 34
9.1 General disposal information 34
9.2 Dispose of diaphragm pumps 34
10 Malfunctions 35
11 Service solutions by Pfeiffer Vacuum 37
12 Spare parts packages 39
13 Accessories 41
13.1 Accessory information 41
13.2 Ordering accessories 41
14 Technical data and dimensions 42
14.1 General 42
14.2 Technical data 42
14.3 Substances in contact with the media 43
14.4 Dimensions 44
Declaration of conformity 45
Table of contents
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List of tables
Tbl. 1: Stickers on the product 8
Tbl. 2: Abbreviations used in this document 9
Tbl. 3: Limits of use of the product 14
Tbl. 4: Connection description of the diaphragm pump 17
Tbl. 5: Permissible voltage ranges for reversible single phase motor 21
Tbl. 6: Typical service life with normal use 26
Tbl. 7: Maintenance intervals 27
Tbl. 8: Troubleshooting on diaphragm pumps 36
Tbl. 9: Spare part package diaphragms and valves 39
Tbl. 10: Spare part package fan 39
Tbl. 11: Spart part package flushing gas nozzle 40
Tbl. 12: Accessories 41
Tbl. 13: Conversion table: Pressure units 42
Tbl. 14: Conversion table: Units for gas throughput 42
Tbl. 15: Technical data MVP 020-3 AC 43
Tbl. 16: Materials that make contact with the process media 44
List of tables
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List of figures
Fig. 1: Position of the stickers on the product 8
Fig. 2: Diaphragm pump design 16
Fig. 3: Minimum distances 19
Fig. 4: Voltage selector switch 21
Fig. 5: Flushing gas nozzle with filter 24
Fig. 6: Fuse holder with device fuse 28
Fig. 7: Pump head and valves 29
Fig. 8: Replacing the diaphragms 30
Fig. 9: Correct mounting orientation of the valves in the head cover 31
Fig. 10: Spare parts 39
Fig. 11: Dimensions PK T01 101 A 44
Fig. 12: Dimensions PK T01 103 A | PK T01 104 A | PK T01 110 A 44
List of figures
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1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de-
scribe the functions of the named product and provide the most important information for the safe use of
the device. The description is written in accordance with the valid directives. The information in this op-
erating instructions refers to the product's current development status. The document shall remain valid
provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
Designation Document
Declaration of conformity A component of these operating instructions
1.1.2 Variants
These instructions apply to diaphragm pumps of the AC series:
●MVP 020-3 AC
1.2 Target group
These operating instructions are aimed at all persons performing the following activities on the product:
●Transportation
●Setup (Installation)
●Usage and operation
●Decommissioning
●Maintenance and cleaning
●Storage or disposal
The work described in this document is only permitted to be performed by persons with the appropriate
technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac-
uum.
1.3 Conventions
1.3.1 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.2 Pictographs
Pictographs used in the document indicate useful information.
About this manual
7/46

Note
Tip
1.3.3 Stickers on the product
This section describes all the stickers on the product along with their meanings.
Pfeiffer Vacuum
Berliner Straße 43
D - 35614 Asslar
Germany
2021/07
40
100–115 V, 50/60 Hz, 1.7 A
120 V, 60 Hz, 1.7 A
220–230 V, 50/60 Hz, 0.85 A
n
Mass
IP 40 / Type 1
S (N2) 1.2/1.4 m³/h
Pw:
max. 1800 1/min
7.3 kg
80 W
Mod.
P/N
MVP 020–3 AC
PK T01 110
S/N xxxxxxxxxx
CUS
TÜV Rheinland
UL/CSA 61010–1
IN
OUT
Rating plate
Rating plate of the diaphragm pump
Warning of hot surfaces
The sticker warns of hot surfaces during op-
eration or immediately after switching off the
vacuum pump.
General warning signs
The sticker provides a general warning of
possible dangers.
warranty seal
Warranty seal
The diaphragm heads are sealed at the fac-
tory. Damaging or removing a warranty seal
results in loss of the warranty.
Warning against voltage range being set
incorrectly
This sticker warns against damage to the
motor due to incorrectly set voltage range.
Tbl. 1: Stickers on the product
12
3
Fig. 1: Position of the stickers on the product
1 Warranty seal (2×) 3 Voltage range warning sign
2 Rating plate of the diaphragm pump
Incl. the 2 warning signs
1.3.4 Abbreviations
Abbreviation Meaning in this document
AC Alternating current
DN Nominal diameter (diamètre nominal)
About this manual
8/46

Abbreviation Meaning in this document
FPM Fluoropolymer rubber
MVP Diaphragm vacuum pump
MSL Mean sea level
PA Polyamide
PE Polyethylene
Protective earth (earthed conductor)
PVC Polyvinyl chloride (PVC)
WAF Width across flats
Tbl. 2: Abbreviations used in this document
About this manual
9/46

2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
All safety instructions in this document are based on the results of the risk assessment carried out in
accordance with Machinery Directive 2006/42/EC Annex I and EN ISO 12100 Section 5. As far as appli-
cable, all unit life cycle phases have been considered.
Risks during transport
WARNING
Danger of serious injury due to falling objects
Due to falling objects there is a risk of injuries to limbs through to broken bones.
►Take particular care and pay special attention when transporting products manually.
►Do not stack the products.
►Wear protective equipment, e.g. safety shoes.
Safety
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Risks during installation
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
►Before the installation, check that the connection leads are voltage-free.
►Make sure that electrical installations are only carried out by qualified electricians.
►Provide adequate grounding for the device.
►After connection work, carry out an earthed conductor check.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Route the exhaust line without shut-off units.
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
►Install suitable touch protection if the vacuum pump is unrestrictedly accessible.
►Allow the vacuum pump to cool down before carrying out any work.
►Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
CAUTION
Health hazard from increased noise emission
Operation without silencer leads to higher noise emissions. Remaining in the close proximity of the
vacuum pump for a sustained period of time may cause hearing damage.
►Install a suitable exhaust line.
►Wear hearing protection.
Risks during operation
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
WARNING
Risk of explosion from reactive, explosive or other hazardous gas / air mixtures.
Uncontrolled inlet of gas at the flushing gas nozzle leads to sparks generated mechanically following
diaphragm rupture, hot surfaces or to explosive gas / air mixtures in the vacuum system caused by
static electricity.
►If necessary, use inert gas for supplying the flushing gas in order to avoid a potential ignition.
Safety
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WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
►Observe the pertinent regulations for handling toxic process media.
►Safely purge toxic process media via an exhaust line.
►Use appropriate filter equipment to separate toxic process media.
CAUTION
Risk of poisoning due to toxic process gases escaping
For intake pressures > 500 hPa, process gas may escape from the flushing gas nozzle.
►If necessary, use an extraction line.
CAUTION
Danger of injury from moving parts
After a power failure or a standstill as a result of overheating, the motor restarts automatically. There
is a risk of injury to fingers and hands if they enter the operating range of rotating parts.
►Safely disconnect motor from the mains.
►Secure the motor against reactivation.
►Dismantle the vacuum pump for inspection, away from the system if necessary.
CAUTION
Danger of burns on hot surfaces
In the event of a fault, the surface temperature of the vacuum pump can increase to above 105°C.
►Allow the vacuum pump to cool down before carrying out any work.
►Wear personal protective equipment.
►Install suitable touch protection if the vacuum pump is accessible to untrained persons.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
►Install suitable touch protection if the vacuum pump is accessible to untrained persons.
►Allow the vacuum pump to cool down before carrying out any work.
►Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
Risks during maintenance, decommissioning and in the event of malfunctions
WARNING
Danger to life from electric shock during maintenance and service work
The vacuum pump is only completely de-energized when the mains plug has been disconnected.
There is a danger to life from electric shock when making contact with live components.
►Before performing all work, switch off the mains switch.
►Disconnect mains cable from mains plug.
►Wait 2 minutes until the capacitors have discharged.
►Secure the vacuum pump against unintentional re-start.
Safety
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CAUTION
Danger of burns on hot surfaces
In the event of a fault, the surface temperature of the vacuum pump can increase to above 105°C.
►Allow the vacuum pump to cool down before carrying out any work.
►Wear personal protective equipment.
►Install suitable touch protection if the vacuum pump is accessible to untrained persons.
Risks during disposal
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions
►Prevent process gases and their reaction and ancillary products that are harmful to health and the
environmental from escaping, or dispose of these according to the applicable regulations.
►Avoid contact with process gases that are harmful to health and if required, wear personal protec-
tive clothing.
►Check the media compatibility of parts carrying media.
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Do not expose body parts to the vacuum.
►Never disconnect plug connections during operation.
►Never fill or operate the unit with cleaning agents or cleaning agent residues.
►Do not carry out your own conversions or modifications on the unit.
►Observe the unit protection degree prior to installation or operation in other environments.
►Provide suitable touch protection, if the surface temperature exceeds 70°C.
►Keep lines and cables away from hot surfaces.
►Before returning the vacuum pump, observe the notes in the chapter Service solutions.
Safety
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2.4 Limits of use of the product
Installation location Interiors, protected against the accumulation of dust and weather in-
fluences, in a non-explosive, dry environment
Protection degree IEC 60529 IP 40
Protection degree UL 50E NEMA type 1
Installation altitude max. 2000 m above sea level 1)
Ambient temperature +10 ℃ to +40 ℃
Relative humidity of air 85% at T ≤ 31 °C, to max. 50% at T ≤ 40 °C
Degree of pollution 2
Overvoltage category II
Tbl. 3: Limits of use of the product
2.5 Proper use
►Use the vacuum pump for vacuum generation only.
►Adhere to the installation, commissioning, operating, and maintenance instructions.
►Do not use any accessory parts other than those recommended by Pfeiffer Vacuum.
2.6 Foreseeable improper use
Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the
purpose of the product, whether intentional or unintentional, is regarded as improper use; in particular:
●Pumping of corrosive media
●Pumping of explosive media
●Pumping radioactive or volatile media
●Pumping of gases that contain impurities such as particles, dust, or condensate
●Pumping of fluids
●Pumping FPM-solubilizing media
●Pumping vapors from combustible liquids
●Pumping pressurized media (> atmospheric pressure)
●Pumping media that can condense or cause adhering deposits to form in the suction chamber
●Use of the vacuum pump outside the specified area of application
●Using the vacuum pump below ground
●Using the vacuum pump to generate pressure
●Using the vacuum pump in systems in which sporadic loads and vibrations or periodic forces act
on the unit
●Using the vacuum pump in strong electrical, magnetic, or electromagnetic fields
●Connection to vacuum pumps or equipment which are not suitable for this purpose according to
their operating instructions
●Connection to devices with exposed live parts
●Connecting to sockets without earthing contact
●Using pipes to lift the vacuum pump
●Use of accessories or spare parts that are not listed in these instructions
●Using the vacuum pump as a climbing aid
●Using the connection lines between the diaphragm heads as carrying handles
●Using the pump in ambient conditions that do not meet the specified IP protection degree limits
2.7 Personnel qualification
The work described in this document may only be carried out by persons who have appropriate profes-
sional qualifications and the necessary experience or who have completed the necessary training as
provided by Pfeiffer Vacuum.
1) at an installation location higher than 1000 meters above sea level, there is a risk of insufficient cooling. If nec-
essary, take measures according to Directive DIN EN 61010.
Safety
14/46

Training people
1. Train the technical personnel on the product.
2. Only let personnel to be trained work with and on the product when under the supervision of
trained personnel.
3. Only allow trained technical personnel to work with the product.
4. Before starting work, make sure that the commissioned personnel have read and understood
these operating instructions and all applicable documents, in particular the safety, maintenance
and repair information.
2.7.1 Ensuring personnel qualification
Specialist for mechanical work
Only a trained specialist may carry out mechanical work. Within the meaning of this document, special-
ists are people responsible for construction, mechanical installation, troubleshooting and maintenance
of the product, and who have the following qualifications:
●Qualification in the mechanical field in accordance with nationally applicable regulations
●Knowledge of this documentation
Specialist for electrotechnical work
Only a trained electrician may carry out electrical engineering work. Within the meaning of this docu-
ment, electricians are people responsible for electrical installation, commissioning, troubleshooting, and
maintenance of the product, and who have the following qualifications:
●Qualification in the electrical engineering field in accordance with nationally applicable regulations
●Knowledge of this documentation
In addition, these individuals must be familiar with applicable safety regulations and laws, as well as the
other standards, guidelines, and laws referred to in this documentation. The above individuals must
have an explicitly granted operational authorization to commission, program, configure, mark, and earth
devices, systems, and circuits in accordance with safety technology standards.
Trained individuals
Only adequately trained individuals may carry out all works in other transport, storage, operation and
disposal fields. Such training must ensure that individuals are capable of carrying out the required activi-
ties and work steps safely and properly.
2.7.2 Personnel qualification for maintenance and repair
Advanced training courses
Pfeiffer Vacuum offers advanced training courses to maintenance levels 2 and 3.
Adequately trained individuals are:
●Maintenance level 1
─Customer (trained specialist)
●Maintenance level 2
─Customer with technical education
─Pfeiffer Vacuum service technician
●Maintenance level 3
─Customer with Pfeiffer Vacuum service training
─Pfeiffer Vacuum service technician
2.7.3 Advanced training with Pfeiffer Vacuum
For optimal and trouble-free use of this product, Pfeiffer Vacuum offers a comprehensive range of
courses and technical trainings.
For more information, please contact Pfeiffer Vacuum technical training.
Safety
15/46

3 Product description
3.1 Function
The diaphragm pump is a dry compressing vacuum pump with 4 pumping stages. This vacuum pump is
a positive displacement pump with a periodic change in suction chamber size, produced by the move-
ment of the diaphragm. The gas flow causes the valves to open and close automatically. The pump
units are directly connected to the drive motor.
12
3
4
5
6
7
8
10
11
9
Fig. 2: Diaphragm pump design
1 Handle 7 Voltage selector switch
2 Vacuum connection, thread 1/8" 8 Fuse holder with device fuse
3 Banjo bolt 9 Mains connection with integrated plug and locking plate
4 Interhead connection 10 Exhaust with silencer
5 Locking screw
(optional: flushing gas nozzle)
11 Motor
6 Rubber feet
3.1.1 Actuator
The drive motor is a single-phase extended voltage range motor with
●switchable voltage range from 100 to 120 V or 200 to 230 V (±10%), 50/60 Hz
●thermal protection switch
●Mains cable with plug
In the event of excess temperature (> 95 °C), the thermic protection switch interrupts the motor current,
but does not facilitate a permanent shut-down of the motor. Once the motor has cooled down, the vac-
uum pump restarts automatically.
3.1.2 Pumping system
The diaphragm pump has 2 diaphragm heads and 4 pumping stages.
3.1.3 Cooling
The diaphragm pump is convection-cooled. The drive motor has not got its own fan.
Product description
16/46

3.2 Connections
Connection Description
Mains connection
Power socket and mains switch for voltage supply
Tbl. 4: Connection description of the diaphragm pump
3.3 Identifying the product
►To ensure clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate to hand.
►Learn about certifications through test seals on the product or at www.certipedia.com with compa-
ny ID no. 000021320.
3.4 Scope of delivery
●Vacuum pump with drive
●Silencer
●Operating instructions
●Blind plug on the vacuum connection
Product description
17/46

4 Transportation and Storage
4.1 Transporting the vacuum pump
WARNING
Danger of serious injury due to falling objects
Due to falling objects there is a risk of injuries to limbs through to broken bones.
►Take particular care and pay special attention when transporting products manually.
►Do not stack the products.
►Wear protective equipment, e.g. safety shoes.
Packing
We recommend keeping the transport packaging and original protective cover.
General information regarding safe transport
1. Observe the weight specified on packaging.
2. Use a transport aid if necessary (trolley, lift truck).
3. Transport the product in its original packaging.
4. Always place the product on an adequately sized, level surface.
Transporting the vacuum pump without its packaging
1. Unpack the vacuum pump.
2. To protect the inside of the pump, leave both protective caps on the connections during transport.
3. For lifting, use the handle provided for this purpose, located on the top of the pump.
4. Lift the vacuum pump out of the transport packaging.
5. Make sure that no forces are acting on the piping system.
6. Always place the vacuum pump on an adequately sized, level surface.
4.2 Storing the vacuum pump
Packing
We recommend storing the product in its original packaging.
Procedure
1. Seal the vacuum connection with the blind plug.
2. Store the vacuum pump only in dry, dust-free rooms, within the specified ambient conditions.
3. In rooms with humid or aggressive atmospheres: Hermetically seal the vacuum pump together
with a drying agent in a plastic bag.
Transportation and Storage
18/46

5 Installation
5.1 Setting up vacuum pump
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
►Install suitable touch protection if the vacuum pump is unrestrictedly accessible.
►Allow the vacuum pump to cool down before carrying out any work.
►Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
Fig. 3: Minimum distances
Procedure
●When selecting the installation location, observe the requirement for touch protection to prevent
burns.
●Pfeiffer Vacuum supports you in implementing the touch protection.
1. Ensure easy access to mains plug at all times so that the vacuum pump can be disconnected
from the supply voltage.
2. Place the vacuum pump on a flat, horizontal surface.
3. For stationary installation, screw the vacuum pump directly to the base if necessary.
–For this purpose, dismantle the rubber feet.
4. When installing the pump in a closed housing, ensure adequate air circulation.
–The vacuum pump does not have a fan.
5. Make sure that minimum distances to adjacent components, e.g., walls, housings, etc., are ob-
served.
6. Keep the specifications on the motor rating plate visible and freely accessible.
5.2 Connecting the vacuum side
NOTICE
Property damage from contaminated gases
Pumping gases that contain contamination damages the vacuum pump.
►Use suitable filters or separators from the Pfeiffer Vacuum range of accessories, to protect the
vacuum pump.
Installation and operation of accessories
Pfeiffer Vacuum offers a series of special, compatible accessories for its diaphragm pumps.
●Information and ordering options for approved accessories can be found online.
●Described accessories are not included in the shipment.
Installation
19/46

Preventing throttling losses
Using the shortest possible vacuum connection lines with large nominal diameter prevents
pressure losses.
Condensate separator
Pfeiffer Vacuum recommends the installation of a condensate separator in case vapors are
formed from moisture during evacuation.
Procedure
1. Remove the blind plug from the vacuum connection.
2. Establish the shortest possible connection between vacuum pump and vacuum chamber.
3. Choose a minimum vacuum line diameter equal to the nominal diameter of the vacuum connec-
tion.
4. Depending on the pump type, use PVC or metallic hoses with flange connections from the Pfeiff-
er Vacuum component shop.
5. Connect the vacuum pump to the vacuum system using the vacuum connection.
5.3 Connect exhaust side
WARNING
Danger to life from poisoning where toxic process gases leak with no exhaust line
During normal operation, the vacuum pump expels exhaust gases and vapors freely into the air. In
processes involving toxic media, there is a risk of injury and danger to life due to poisoning.
►Observe the relevant regulations for handling toxic substances.
►Safely purge toxic process gases via an exhaust line.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Route the exhaust line without shut-off units.
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Health hazard from increased noise emission
Operation without silencer leads to higher noise emissions. Remaining in the close proximity of the
vacuum pump for a sustained period of time may cause hearing damage.
►Install a suitable exhaust line.
►Wear hearing protection.
Condensate separator
Pfeiffer Vacuum recommends installing a condensate separator, with condensate drain at
the lowest point of the exhaust line.
Procedure
1. Check the installed silencer for free passage.
2. Choose a minimum exhaust line diameter equal to the nominal diameter of the connection flange.
3. Depending on the pump type, use PVC or metallic hoses with flange connections from the Pfeiff-
er Vacuum component shop.
4. Option: In case of higher gas throughputs, mount an exhaust line.
5. Route the piping downwards from the vacuum pump, to prevent condensate return.
6. Support or suspend the piping to the vacuum pump so that no piping system forces act on the
vacuum pump.
Installation
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