VACUUBRAND RP 35C User Manual
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Technology for Vacuum Systems
Instructions for use
RP 12C
RP 15C VARIO
RP 22C VARIO
RP 35C VARIO
Roots pumping units
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
page 2 of 29
Dear customer,
Your VACUUBRAND diaphragm pumps should support you for a long time without trouble and with maximal
power. Thanks to our long practical experience we have much information how you could ensure powerful
application and personal safety. Please read these instructions for use before the initial operation of your
pump.
VACUUBRAND diaphragm pumps are the result of many years of experience in construction and practical
operation of these pumps combined with the latest developments in material and manufacturing technology.
Our quality maxim is the ”zero fault principle”:
Every diaphragm pump, leaving our company, is tested intensively including an endurance run of 18 hours.
Therefore also faults, which occur rarely, are identified and can be eliminated immediately.
The achievement of the specifications after the endurance run is tested for every pump.
Every VACUUBRAND pump achieves the specifications. We feel obliged to this high quality standard.
We know that the vacuum pump can not take a part of your real work and hope that our products contribute
to an effective and trouble-free realisation of your work.
Yours
VACUUBRAND GMBH + CO KG
After sales service:Contact your local dealer or call +49 9342 808-193.
Attention! Important notes!
Not permitted! Misuse may cause damage.
Caution! Hot surface!
Isolate equipment from mains.
Note.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
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Contents
Safety information! ....................................................................................................4
Technical data ............................................................................................................9
Use and operation ................................................................................................... 12
Troubleshooting ......................................................................................................14
Oil change ................................................................................................................ 16
Replacing diaphragms and valves ........................................................................17
Notes on return to the factory ................................................................................ 26
Health and safety clearance form ..........................................................................27
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
Safety information!
Remove all packing material, remove the product from its packing-box, remove protective covers from inlet and outlet ports and keep them. Inspect the equipment.
If the equipment is damaged, notify the supplier and the carrier in writing within three
days; state the item number of the product together with the order number and the
supplier’s invoice number. Retain all packing material for inspection.
Do not use the equipment if it is damaged.
If the equipment is not used immediately, replace the protective covers. Store the
equipment in suitable conditions.
☞ Read and comply with this manual before installing or operating the equip-
ment.
Note: See figures on how to lift up and carry the pumping unit.
The handles at the diaphragm pump are not suitable to lift up and carry the complete
pumping unit.
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RP 12C and 15C VARIO RP 22C/35C VARIO
Use the equipment for the intended use only, i. e. for generation of vacuum.
☞ Prevent any part of the human body from coming in contact with the vacuum.
☞ Comply with notes on correct vacuum and electrical connections.
☞ Adopt suitable measures to avoid that liquids flow on or into the pump motor when
assembling or disassembling vacuum connections at the pump. Risk of corrosion
and/or short circuit!
☞ Take care when connecting and deconnecting the vacuum tube.
☞ Make sure that the individual components are only connected, combined and ope-
rated according to their design and as indicated in the instructions for use.
☞ Avoid continuous operation of the roots pumping unit RP 12C at inlet pres-
sures > 50 mbar in order to prevent overheating caused by the compression heat
at high inlet pressure and to prevent blockade of the rotors or activation of the
thermal cutout in the winding of the roots pump’s motor.
Comply with national safety regulations and safety requirements concerning the
use of vacuum and electrical equipment.
☞ Equipment must be connected to a suitable fused and protected electrical sup-
ply and a suitable earth point. Failure to connect the motor to ground may result in
deadly electrical shock.
☞ The supply cable may be fitted with a moulded European IEC plug or a plug suitable
for your local electrical supply. If the plug has been removed or has to be removed,
the cable will contain wires colour coded as follows: green or green and yellow:
earth; blue or white: neutral; brown or black: live.
☞ Check that mains voltage and current conform with the equipment (see rating plate).
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
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Comply with all relevant safety requirements (regulations and guidelines) and adopt
suitable safety measures.
The mains on/off switch is located sidewise at the terminal box. The pumps cannot be
hooked up separately.
☞ If the equipment is brought from cold environment into a room for operation, allow
the equipment to warm up (pay attention to water condensation on cold surfaces).
☞ Ensure that installation is in compliance with limitations from the degree of protec-
tion, see section ”Technical Data”.
☞ RP 15C/22/35/ VARIO only: After switching off the pump, wait at least 3 minutes
before next switching on.
☞ RP 15C/22/35/ VARIO only: Due to the high leakage current (up to 3.5 mA), a too
low rated FI-safety switch may be activated.
Comply with all other relevant safety requirements (e.g. safety at work regulations for
laboratories and explosion protection guidelines).
☞ Ensure that the equipment is suitable for the intended operation.
☞ Provide a firm level platform for the equipment and check that the system to be
evacuated is mechanically stable and that all fittings are secure.
Attention: Flexible elements tend to shrink when evacuated.
Due to the high compression ratio of the pumps, pressure at the outlet port might be
generated being higher than the max. permitted pressure compatible with the mechanical stability of the system.
☞ Comply with maximum permitted pressures and pressure differences, see sec-
tion ”Technical data”. Do not operate the pump with overpressure at the inlet.
Do not permit any uncontrolled pressurizing (e. g. make sure that the exhaust pipeline cannot get blocked). If you have an exhaust-isolation valve, make sure that you
cannot operate the equipment with the valve closed. Risk of bursting!
☞ Ensure that the system design does not allow the exhaust pipeline to get blocked.
☞ Avoid overpressure of more than 0.2 bar in case inert gas is connected.
☞ The diameter of the inlet and outlet pipeline should be at the least as large as the
diameter of the pump connection pipelines.
Pay attention to symbol ”hot surfaces” on the equipment.
☞ Adopt suitable measures to prevent any danger arising from the formation of hot
surfaces or electric sparks.
☞ Make sure ventilation is adequate if pump is installed in a housing or if ambient
temperature is elevated.
To the best of our knowledge the equipment is in compliance with the requirements of
the applicable EC-directives and harmonized standards (see ”Declaration of conformity”) with regard to design, type and model, especially directive IEC 1010. This directive
gives in detail conditions, under which the equipment can be operated safely (see also
IP degree of protection).
☞ Adopt suitable measures in case of differences, e. g. using the equipment outdoors,
installation in altitudes of more than 1000 m above mean sea level, conductive
pollution or moisture.
The pumps have no approval for operation in or for pumping of potentially explosive atmospheres.
If pumping different substances, purge the pump with inert gas prior to changing the
pumped media in order to pump out residues and to avoid reactions of the pumped
substances with each other with and the pump material.
Take into consideration interactions and chemical reactions of the pumped media.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
page 6 of 29
The pumps are not suitable for pumping substances which may form deposits inside
the pump.
☞ If there is a danger of the formation of deposits in the pump chamber (check inlet
and outlet of the pump) inspect the pump chamber regularly and clean if necessary.
The pumps are not suitable to pump unstable substances and substances which
react explosively under impact (mechanical stress) and/or when being exposed to
elevated temperatures without air.
The pumps are not suitable to pump self inflammable substances, substances which
are inflammable without air and explosive substances.
The pumps are not suitable for pumping dust and have no approval for operation
below ground.
Ensure that the materials of the wetted parts are compatible with the pumped
substances, see section ”Technical data”.
☞ If residues can occur or if aggressive or condensable substances may enter the
product, install suitable protection (e.g. gas washing bottle).
☞ Adopt suitable measures to prevent the release of dangerous, explosive, corrosive
or polluting fluids.
☞ Use inert gas for gas ballast or venting if necessary.
☞ The user must take suitable precautions to prevent any formation of explosive
mixtures in the expansion chamber. In case of a diaphragm crack, mechanically
generated sparks, hot surfaces or static electricity may ignite these mixtures.
☞ Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of fluoroelastomers), wear
appropriate safety-clothing and safety glasses.
☞ Comply with applicable regulations when disposing of chemicals. Take into consid-
eration that chemicals may be polluted.
Always allow the pump to continue to run for a few minutes with the inlet closed or with
little gas ballast.
Adopt suitable measures to prevent any danger arising from potentially explosive or
flammable mixtures.
☞ Use inert gas for venting the equipment.
☞ As regards root pumps, the rotors rotate with a minimum clearance and at high
speed relatively to each other as well as along the housing. The clearance can
become smaller because of the thermal expansion due to compression heat. Therefore, the pumping unit RP 12C must not be operated continuously at inlet pressures
> 50 mbar.
Due to the residual leak rate of the equipment, there may be an exchange of gas,
albeit very small, between the environment and the vacuum system.
☞ Adopt suitable measures to prevent contamination of the pumped substances or
the environment.
Avoid overpressure at the gas ballast valve in case of high inlet pressure due to the
high compression ratio.
☞ Pumped gases or collected condensate may leak in case the valve is open.
☞ Ensure that the inlet pipeline does not become contaminated when using inert gas.
☞ Avoid high heat supply (e. g. due to hot process gases).
☞ Pay attention to the max. permitted ambient temperature and make sure ventilation
is adequate especially if the equipment is installed in a housing.
In case of excess temperature, the motor of the diaphragm pump respectively the
motor of the Roots pump is shut down by a self-hold thermal cutout in the winding.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
page 7 of 29
☞ If the diaphragm pump is shut down, the Roots pump is not shut down automati-
cally. However, the variable speed drive of the Roots pumps of the pumping units
RP 15C/22C/35C VARIO reduces the speed of the Roots pump following a limiting
current regulation, if necessary to standstill of the Roots pump. In case of excess
temperature, the motor of the Roots pump is shut down by a separate self-hold
thermal cutout in the winding.
☞ If the Roots pump is shut down or if the speed of the pumping units RP 15C/22C/
35C VARIO is reduced, the diaphragm pump continues to run.
Attention: In each case manual reset is necessary. Switch off the pumping unit or
isolate the equipment from mains. Identify and eliminate the cause of failure. Allow the
pump to cool down sufficiently before restart.
Ensure that in case of failure the pump and the vacuum system always will turn into a
safe status.
☞ In case of diaphragm cracks or leaks in the manifold pumped substances might be
released into the environment or into the pump housing. To reduce the risk of leaks,
ask for a diaphragm pump with additional safety diaphragm.
☞ Comply especially with notes on operation and use and maintenance.
☞ Failure of the pump (e. g. due to power failure) must not lead to a critical dangerous
situation under any circumstances.
Electronic equipment is never 100% fail-safe. This may lead to an indefinite status of
the equipment. Provide protective measures against misfunction and failure.
☞ Operating the pump, stand still of the pump or operating the air admittance valve
must not lead to a critical dangerous situation under any circumstances.
Under normal conditions, pump oils and lubrications are not toxic and their use entails
no danger. Certain hazards are, however, associated with some of these products. The
following precautions must be adopted during use and operation in order to meet health
and safety requirements.
Adopt precautionary measures (e. g. wear appropriate safety-clothing and protective
goggles) to avoid excessive contact with the skin and possible skin irritations (including dermatitis).
Do not inhale or swallow. Maintain adequate levels of hygiene and cleanliness.
Ensure that the pump location is well ventilated and that possible toxic effects of
certain vapours are avoided.
☞ Use suitable collecting and disposing systems if necessary.
Operate the roots pump only, if the oil filling is sufficient (see section ”Oil change”).
Use only oil of the recommended type.
Other oils or operating fluids may cause dangers or damage of the pump.
Use only genuine spare parts and accessories.
☞ Otherwise safety and performance of the equipment as well as the electromagnetic
compatibility of the equipment might be reduced.
Possibly the CE mark becomes void if not using genuine spare parts.
Use special oils for the roots pump if:
☞ The pump operates in the vicinity of potential ignition sources.
☞ Oxygen or other flammable gases account for a large proportion of the evacuated
gases.
Do not allow oils to be poured into or enter the drainage system or other bodies of water.
Spillage can cause accidents. Use suitable means for removing spilt oil.
Observe all relevant statutory requirements and regulations concerning the use, storage and disposal of oil.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
page 8 of 29
The A-weighed emission sound pressure level of the pump does not exceed 70 dB(A).
Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 with standard
silencer or exhaust tube at outlet.
Ensure that maintenance is done only by suitable trained and supervised technicians. Ensure that the maintenance technician is familiar with the safety procedures
which relate to the product processed by the vacuum system and that the equipment,
if necessary, is appropriately decontaminated before starting maintenance.
Comply with local and national safety regulations.
Wear parts have to be replaced regularly. In case of normal wear the lifetime of the
diaphragms and valves is > 10000 operating hours. Bearings have a typical durability
of 40000 h. Motor capacitors have a typical durability in the range of 10000 to 40000 h
depending strongly on the operation conditions like ambient temperature, humidity or load.
☞ Check every capacitor regularly by measuring its capacity and estimating its opera-
tion time. Exchange old capacitors early enough to prevent a failure. If an overaged
motor capacitor fails it might get hot and even melt and may cause a flame to form
which could be dangerous for persons and equipment in the vicinity. The ca-
pacitors have to be replaced by an electrician.
Ensure that maintenance is done only by suitably trained and supervised technicians.
Ensure that the maintenance technician is familiar with the safety procedures which
relate to the products processed by the pumping system.
Never disassemble the aggregatof the Roots pump but return it to the factory for repair
or maintenance.
➨ Isolate equipment from mains before starting maintenance and wait two min-
utes to allow the capacitors to discharge.
☞ Before starting maintenance vent the system, isolate the pump and other compo-
nents from the vacuum system and the electrical supply. Drain condensate if appli-
cable, avoid the release of pollutants. Allow sufficient cooling of the pump.
Ensure that the pump cannot be operated accidentally. Never operate the pump if
covers or other parts of the pump are disassembled. Never operate a defective or
damaged pump.
☞ Attention: The pump might be contaminated with the process chemicals that have
been pumped during operation. Ensure that the pump is decontaminated before
maintenance and take adequate precautions to protect people from the effects of
dangerous substances if contamination has occurred.
☞ Wear appropriate safety-clothing when you come in contact with contaminated com-
ponents.
In order to comply with law (occupational, health and safety regulations, safety at work
law and regulations for environmental protection) vacuum pumps, components and
measuring instruments returned to the manufacturer can be repaired only when certain
procedures (see section “Notes on return to the factory“) are followed.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
Technical data
page 9 of 29
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We reserve the right for modifications without prior notice!
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 999019 / 22/12/2009
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