Pfeiffer MVP 020-3 AC User manual

Betriebsanleitung • Operating Instructions
PK 0217 BE/O (0906)
Diaphragm Pump
MVP 020-3 AC
MVP 020-3 DC
Translation of the Original Operating Instructions

2
Table of contents
Table of contents
1 About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Setting up the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Connecting the vacuum side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Connecting the exhaust side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.4 Connecting to the mains power supply . . . . . . . . . . . . . . . . . . . . . . 10
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1 Before switching on the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Control signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.3 Switching on the pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4 Pumping condensable vapours. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.1 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2 Cleaning and replacing diaphragm and valves . . . . . . . . . . . . . . . . 17
7.3 Checking the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.1 Shutting down for longer periods. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.1 Rectifying malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
13.1 Substances in contact with the media. . . . . . . . . . . . . . . . . . . . . . . 26
13.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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About this manual
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the func-
tioning of the designated product and provides the most important information for
safe use of the unit. The description follows applicable EU guidelines. All informa-
tion provided in this operating manual refer to the current state of the product's de-
velopment. The documentation remains valid as long as the customer does not
make any changes to the product.
Up-to-date operating instructions can also be downloaded from
www.pfeiffer-vacuum.net.
Applicable docu-
ments
*also available via www.pfeiffer-vacuum.net
For information about other certifications, if applicable, please see the signet on
the product or:
• www.tuvdotcom.com
• TUVdotCOM-ID 0000021320
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating manuals are the result of risk
evaluations and hazard analyses and are oriented on international certification
standards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844.
In this document, the following hazard levels and information are considered:
MVP 020-3 AC/DC Operating instructions
Safety information for vacuum pumps "Safety Guide" PT 0300 BN*
Declaration of Conformity Part of this document
Operating instructions for accessories (order-specifically) see section "accessories"*
DANGER
Immediate danger
Death or very severe injuries can occur.
WARNING
Possible danger
Injuries or severe property damages can occur.
CAUTION
Possible danger
Injuries or prperty damages can occur.
NOTE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.

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Safety
Pictograph
definitions
Instructions in the
text
Work instruction: here you have to do something.
Symbols used The following symbols are used consistently throughout in all illustrations:
Vacuum flange
Power connection
Exhaust flange
2Safety
2.1 Safety precautions
• Before pumping dangerous, corrosive or environmentally hazardous media,
take suitable precautions:
– Test the compatibility with substances in contact with the media.
– Prevent the release of process gases and their reaction products and by-pro-
ducts or dispose of them according to the relevant regulations.
– Safety measures (e.g. wearing protective clothing and safety goggles) to pre-
vent inhalation and skin contact.
Prohibition of an action or activity in connection with a
source of danger, the disregarding of which may result in
serious accidents.
Warning of a displayed source of danger in connection
with operation of the unit or equipment.
Command to perform an action or task associated with a
source of danger, the disregarding of which may result in
serious accidents.
V
NOTE
Duty to inform
Each person involved in the installation, operation or maintenance of the vacuum
pump must read and observe the safety-related parts of these operating instructions.
Absolute observe the safety information for vacuum pumps (PT 0300 BN) !
The operator is obligated to make operating personnel aware of dangers originating
from the vacuum pump, the pumped medium and the entire system.
NOTE
Installation and operation of accessories
Pfeiffer Vacuum pumps can be equipped with a series of adapted accessories. The
installation, operation and maintenance of connected devices are described in detail in
the operating instructions of the individual components.
For information on the operating instructions of components, see "Accessories".
Use original accessory parts only.

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Safety
• Connect the vacuum pump to a shockproof socket only.
– Use only undamaged network cables which comply with the regulations.
– Make sure that the grounding is sufficient.
• Do not expose any body parts to the vacuum.
• Observe the safety and accident prevention regulations.
• Check regularly that all safety precautions are being complied with.
• Do not carry out any unauthorised modifications or conversions to the pumps.
• Depending on the operating and ambient conditions, the surface temperature of
the pumps may rise above 70 °C. Use suitable finger guards if necessary.
• The unit has been accredited with protection class IP 54/20. When installing into
ambient conditions, which afford other protection classes, the necessary measu-
res must be taken.
• When returning the pumps to us please note the instructions in the Service sec-
tion.
2.2 Proper use
• The vacuum pump may only be used to generate a vacuum.
• Installation, operating and maintenance regulations must be complied with.
• Other accessories than those described in this manual must not be used without
the agreement of Pfeiffer Vacuum.
• When pumping gases which could form explosive or ignitable mixtures, take
suitable precautions:
– If necessary, connect inert gas for ventilation or gas ballast supply.
2.3 Improper use
Improper use will cause all claims for liability and guarantees to be forfeited. Im-
proper use is deemed to be all use for purposes deviating from those mentioned
above, especially:
• Pumping of corrosive or explosive media.
• Operation of the pump in potentially explosive areas.
• Pumping of gases containing impurities such as particles, dusts and condensate;
note the vapour compatibility levels of the pump.
• Pumping of substances that tend to sublime.
• Use of the vacuum pump to generate pressure.
• Pumping of liquids.
• Connection to pumps or units which are not suitable for this purpose according
to their operating instructions.
• Connection to units which have exposed voltage-carrying parts.
NOTE
CE conformity
The manufacturer's declaration of conformity becomes invalid if the operator modifies
the original product or installs additional components.
Following installation into a plant and before commissioning, the operator must
check the entire system for compliance with the valid EU directives and reassess it
accordingly.

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Transport and storage
3 Transport and storage
3.1 Transport
Remove the locking cap from the vacuum and fore-vacuum flange immediately
before connecting!
Use only the handles provided for that purpose to lift the pump.
– Do not use the interhead connections on the top side of the pump to carry the
pump.
3.2 Storage
Check that all the openings on the pump are securely closed.
Store the pump in a cool, dry place; preferably at room temperatures (approx.
20°C).
– For a longer period of storage, seal the pump in a PE bag with drying agents
enclosed.

7
Product description
4 Product description
4.1 Product identification
To correctly identify the product when communicating with Pfeiffer Vacuum, al-
ways have the information from the rating plate available.
• Pump model and model number
• Serial number
• Date of manufacture
Scope of delivery • Pump with drive unit
• Operating instructions
Differences between
the pump versions
Characteristic MVP 020-3 AC MVP 020-3 DC
Flange (in)
• G 1/8" elbow union + enclosed hose DN 6
x 1000 mm with a elbow union in G 1/4" at
the end
• G 1/8" + hose wave DN 6
Flange (out) • G 1/8" + hose wave DN 6 • G 1/8" + silencer
Mains requirement:
voltage (selectable) 100-120/200-230 V, 50/60 Hz 24 V (+/- 10 %)
Variable speed
function no yes, via control voltage

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Product description
4.2 Function
The diaphragm vacuum pumps of the series MVP 020-3 AC/DC are three stage, dry
compressor vacuum pumps. The pumps are positive displacement pumps with a
periodic change of size of the suction chamber produced by the movement of the
diaphragm. The gas flow causes the valves to open and close automatically. The
pump units are directly connected to the drive motor.
Fig. 1: MVP 020-3 AC
Fig. 2: MVP 020-3 AC
1 Vacuum connection
2 Exhaust (with silencer)
9 Handle, removable
10 Interhead connection
11 Banjo bolt
13 Mains connection with secu-
ring ring and main switch
14 Voltage selection switch
20 Screw plug
20.1 Purge orifice, optional
1 Vacuum connection
2 Exhaust (with silencer)
9 Handle, removable
10 Interhead connection
11 Banjo bolt
13 Power supply connection
16 Connection control voltage
20 Screw plug
20.1 Purge orifice, optional
10
9
2
13
14 20/20.1
11
1
V
10
11
9
2
13 16
20/20.1
1
V

9
Installation
5 Installation
5.1 Setting up the pump
Installation location Observe the following requirements when setting up the pump:
• Consider the load-bearing capacity of the installation site.
• Maximum installation altitude 2000 m (above mean sea level)
• Permissible ambient temperature: +12 ... 40°C
• Maximum relative humidity 85%
Always place the pump on a firm, even surface.
– Where stationary installation is involved, anchor the pump on site.
When installing the pump in a closed housing, ensure there is sufficient air cir-
culation.
– Voltage and frequency information given on the motor rating plate must be
visible.
– If vacuum pump is installed above 1000 m above mean sea level check com-
patibillity with applicable safety requirements, e.g. DIN EN 61010 (motor may
overheat due to insufficient cooling).
5.2 Connecting the vacuum side
Remove locking cap on intake connection and connect vacuum pump to the ap-
paratus.
The connection between the pump and the recipient should be kept as short as
possible.
– Depending on the pump type, use metallic hoses or PVC hoses with flange
connections.
– Separators, filters etc. may be installed upstream to protect the pump (see ac-
cessories). However, please observe the loss of pumping capacity due to the
conductivity of the accessories.
5.3 Connecting the exhaust side
Choose the cross-section of the exhaust line to be at least the size of the nominal
connection diameter of the vacuum pump's exhaust connection.
Piping to the pump must be suspended or supported.
– Physical forces from the piping system must not be allowed to act on vacuum
pumps.
Lay piping from the pump sloping downward so that no condensate can flow
back into the pump; otherwise fit a condensate separator.
– If an air trap is created in the system, then a device for draining condensation
water must be provided at the lowest point.
CAUTION
High pressure in the exhaust line!
Danger of damage to the seals and danger of the pump bursting.
Install the line without shut-off valves on the exhaust side.
Pumpe nicht mit Überdruck am Einlass betreiben; max. zulässige Drücke und Druck-
differenzen beachten.

10
Installation
5.4 Connecting to the mains power supply
The pump is driven by single-phase extended voltage range motors with revers-
ible voltage ranges.
Single phase motors The mains voltage must be determined on-site each time before the pump is in-
stalled or moved to a different location.
Changing the voltage range
Disconnect the pump from the power supply.
Set the desired voltage range on the voltage selector switch using a suitable
screwdriver.
WARNING
Emission of toxic substances from the exhaust!
Danger of poisoning from emitted gases or vapours, which can be detrimental to
health and/or can pollute the environment, depending on the particular application.
Comply with the applicable regulations when working with toxic substances.
Only officially approved filter systems may be used to separate and remove these
substances.
CAUTION
Excess voltage!
Danger of destroying the motor.
Power connections must comply with local regulations. Voltage and frequency infor-
mation given on the motor rating plate must correspond to the mains voltage and
frequency values.
To protect the motor and supply cable in case of malfunction, mains fuse protection
must be implemented.
NOTE
Overvoltage!
An incorrect voltage range setting can damage the motor.
Disconnect the pump from the power supply.
Only change the voltage range when the pump is disconnected from the power
mains.