vacuubrand RP 15C VARIO User manual

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 1 of 29
Roots pumping units
RP 12C
RP 15C VARIO
RP 22C VARIO
RP 35C VARIO
Technology for Vacuum Systems
Instructions for use

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
Attention! Important notes!
Not permitted! Misuse may cause damage.
Caution! Hot surface!
Isolate equipment from mains.
Note.
After sales service:Contact your local dealer or call [phone].
Dear customer,
YourVACUUBRAND 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

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 3 of 29
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
page 4 of 29
Safety information!
Remove all packing material, remove the product from its packing-box, remove protec-
tive 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.
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
page 5 of 29
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 mechani-
cal 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 pipe-
line 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 conform-
ity”) 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 ex-
plosive 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.