page 1 of 35 Translation of the original instructions Rotavac 20 Instruction 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.
Translation of the original instructions page 2 of 35 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.
page 3 of 35 Translation of the original instructions [GB] It is imperative to read this instruction manual prior to initial operation! Comply with safety instructions! Keep for further use! This documentation is not subject to revision service! 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.
Translation of the original instructions page 4 of 35 ➨ DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. + WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. • NOTICE CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE is used to address practices not related to personal injury.
page 5 of 35 Translation of the original instructions Contents 1 Safety information....................................................................................................6 1.1 General information.......................................................................................................................6 1.2 Intended use..................................................................................................................................6 1.
Translation of the original instructions page 6 of 35 1 Safety information 1.1 General information ☞ Read and comply with this manual before installing or operating the equipment. • NOTICE Use the mounted handle when moving the pump. Remove all packing material, remove the product from its packing-box, remove the protective covers from the inlet and outlet ports and keep, inspect the equipment. 1.2 Intended use ☞ The pump and all system parts must not be used on humans or animals.
page 7 of 35 NOTICE Translation of the original instructions • Comply with maximum permissible pressures at inlet and outlet and pressure differences between inlet and outlet, see section ”Technical data”. Do not operate the pump with overpressure at the inlet. • Avoid overpressure of more than 0.2 bar in case inert gas is connected to the pump, the gas ballast or to a venting valve. • Attention: Flexible elements tend to shrink when evacuated.
Translation of the original instructions page 8 of 35 1.5 Operating conditions ➨ 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, - self inflammable substances, - substances which are inflammable without air and - explosive substances. ➨ The pumps have no approval for operation below ground. ☞ The pumps are not suitable for pumping dust.
page 9 of 35 Translation of the original instructions ☞ Prevent any part of the human body from coming into contact with vacuum. ☞ Never aspirate dust into the pump. + Make sure that the exhaust pipeline cannot become blocked. ☞ Check the overpressure safety relief device at the exhaust waste vapor condenser at appropriate intervals. ☞ Comply with applicable regulations when disposing of chemicals. Take into consideration that chemicals may be contaminated.
Translation of the original instructions page 10 of 35 In case of overload, the motor is shut down by a self-hold thermal cutout in the winding. Note: Only manual reset is possible. Switch off the pump and disconnect from the power source. Identify and eliminate the cause of failure. Wait approx. five minutes before restarting the pump. 1.7 Maintenance and repair Wear parts have to be replaced regularly. In case of normal wear, the lifetime of the diaphragms and valves is > 10000 operating hours.
page 11 of 35 Translation of the original instructions 2 Standard items and options P/N Item ROTAVAC 20 qty 100-115 V~ 50/60 Hz, 120 V~ 60 Hz / 200-230 V~ 50/60 Hz 1 591-07210-00-1 Power cord (CEE) 1 14-300-009-81 Instruction manual 1 01-005-005-36 Warranty card / Confirmation of condition of unit 1 01-006-002-58 Standard items ROTAVAC 20 ROTAVAC 20 Documents are only to be used and distributed completely and unchanged.
Translation of the original instructions page 12 of 35 3 Technical data Type Rotavac 20 Maximum pumping speed* 50/60 Hz according ISO 21360 m3/h 3.4 / 3.8 Ultimate vacuum (absolute) without gas ballast mbar 1.5 Ultimate vacuum (absolute) with gas ballast mbar 3 Maximum permissible inlet pressure (absolute) bar 1.1 Maximum permissible outlet pressure (absolute) bar 1.1 Maximum permissible difference pressure between inlet and outlet bar 1.
page 13 of 35 Translation of the original instructions 3.1 Gas inlet temperatures Operating condition Inlet pressure Permitted range of gas temperatures at inlet Continuous operation > 100 mbar (high gas load) +10°C to +40°C Continuous operation < 100 mbar (low gas load) 0°C to +60°C Short-time (< 5 minutes) < 100 mbar (low gas load) -10°C to +80°C We reserve the right for technical modification without prior notice! Documents are only to be used and distributed completely and unchanged.
Translation of the original instructions page 14 of 35 3.
page 15 of 35 Translation of the original instructions 11 8 7 2 14 13 3 12 6 5 1 4 9 10 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.
Translation of the original instructions page 16 of 35 4 Use and operation 4.1 Installing in a vacuum system ➨ If there is risk of release of dangerous or polluting fluids, install an appropriate system to catch and dispose of those fluids. ☞ Connect an exhaust line gas tight at the pump outlet if necessary. Always dispose of exhaust gases appropriately (e.g. into a fume hood). ☞ Never block the gas outlet.
page 17 of 35 Translation of the original instructions 4.2 Exhaust waste vapor condenser and separator ☞ Check glass parts for damage and bracing. Use only faultless glass parts. Assembling the hose nozzle with union nut: - Take the hose nozzle with attached compression ferrule and union nut out of the catchpot and put onto inlet connection - T������������������������������������������������������������������������������� ighten the union nut by hand until you can feel the stop.
Translation of the original instructions • • • • • • page 18 of 35 Attention: Install hoses of the cooling system in a way to avoid flow / dropping of condensed water onto the pumping unit (especially cables and electronic parts) (see degree of protection IP). Ensure that the coolant outlet pipeline is always free and that it cannot get blocked.
page 19 of 35 Translation of the original instructions 4.4 Attention: Important notes regarding the use of gas ballast ➨ When using air rather than inert gas, risk of significant damage to equipment and/ or facilities, risk of personal injury or even loss of life exists due to the formation of hazardous and/or explosive mixtures if air and pumped media react inside or at the outlet of the pump.
Translation of the original instructions NOTICE page 20 of 35 In case of condensation: Check liquid level in the catchpot during operation. Avoid overflowing of the catchpot. Do not allow the catchpot to get overfilled. Maximum liquid level approx. 80% to avoid problems when removing the catchpot. Check liquid level in the catchpot regularly and drain catchpot in time. Permissible range of coolant temperature at the exhaust waste vapor condenser: -15°C to +20°C.
page 21 of 35 Translation of the original instructions 5 Troubleshooting Fault Possible cause Remedy ❑ ➨ Supply voltage too low or power supply failure? ✔ ➨ Control signal for motor speed ✔ is missing? Check control signal. ➨ Pressure in outlet pipeline too ✔ high? Remove blockade in line, open valve. ➨ Motor overloaded? ✔ Allow motor to cool down, identify and eliminate cause of failure. Manual reset is necessary. Switch off pump or unplug mains.
Translation of the original instructions page 22 of 35 6 Replacing diaphragms and valves ➨ Never operate the pump if covers or other parts of the pump are disassembled. Ensure that the pump cannot be operated accidentally. ➨ Before starting maintenance isolate the pump from the electrical supply and wait two minutes after isolating the equipment from mains to allow the capacitors to discharge. ➨ Attention: The pump might be contaminated with the process chemicals that have been pumped during operation.
page 23 of 35 Translation of the original instructions 6.1 Cleaning and inspecting the pump heads The replacement of the diaphragm and the replacement of the valves can be carried out separately. + To replace the valves, remove the head covers of one side of the pump along with the assembled valve heads and fittings. ☞ To maintain the diaphragms, the valve heads and the fittings need not be disassembled. The head covers can be removed along with the assembled valve heads and fittings.
Translation of the original instructions page 24 of 35 ➨ Remove catchpots at inlet and outlet. ➨ Remove the 4 screws affixing the head cover cowling with a Torx driver T20. Pay attention to the washers under the screws and remove. ➨ Pull off head cover cowling carefully. Do not tilt. Detach the coupling of the connection tube to the other side of the pump as well as the hose connection to the inlet/outlet of the vacuum system at the valve head. ➨ Open the hose clip with a slotted screwdriver.
page 25 of 35 Translation of the original instructions 6.2 Replacing the diaphragm ➨ Disassemble head covers to check the diaphragm. ➨ Unscrew eight Allen screws with an Allen key size 5. Remove both head covers together with valve heads and connections. + It is not necessary to disassemble the valve heads, the connection fasteners, or the hose connection between the adjacent head covers. + Check diaphragm for damage and replace if necessary. ➨ Lift diaphragm carefully sidewise.
Translation of the original instructions page 26 of 35 6.3 Replacing the valves ➨ Open the hinged cover of the connection fastener with a slotted screwdriver. Loosen connection fastener slightly. ➨ Turn the fillister head screw with a Torx driver T20 at most one turn. ☞ Do not detach the fillister head screw from the square nut. Loosen the clamping brackets on the valve heads. ➨ Unscrew at each clamping bracket the two countersunk screws with a Torx driver T20. Remove the clamping brackets.
page 27 of 35 Translation of the original instructions ➨ Position valve heads, with hose nozzle, if applicable, connection tube or connection fastener, and disc springs on the valve seats. Position disc springs with large opening downwards. Pay attention to the correct orientation of the valve heads. ☞ Center the valve head with respect to the valve seat. The valve head must lie flat on the valve seat.
Translation of the original instructions page 28 of 35 ➨ Put head cover cowling on. ➨ Slide the head cover cowling in the grooves of the caps and under the connection fasteners. ➨ Install the washers. Use a Torx driver T20 to attach the 4 screws holding the head cover cowling. ➨ Tighten the fillister head screws of the connection fasteners with a Torx driver T20. ➨ Close the hinged covers.
page 29 of 35 Translation of the original instructions 6.4 Replacing the device fuse The replacing of the fuse has to be carried out by a trained electrician. Switch off the pump. Disconnect the electrical power cord before opening the terminal box. After disconnecting from power, wait two minutes to allow the capacitors to discharge. After replacing the fuse, the pump must be checked for electric safety (see below)! Identify and eliminate the cause of failure before switching on the pump again.
Translation of the original instructions page 30 of 35 6.5 Replacing the overpressure safety relief device at the condenser Overpressure safety relief device ....................................................................... 23-30-01-04-98 Round bottom flask 500 ml, coated ....................................................................... ...514-83000-02 ➨ Remove joint clip at the catchpot. ➨ Unscrew the four Torx screws at the counter holder of the condenser and remove condenser.
page 31 of 35 Translation of the original instructions 7 Warranty, liability, copyright Warranty Heidolph Instruments provides a three-year warranty on the products described here (with the exception of glass and consumable parts) if registered with enclosed warranty card or via internet (www.heidolph. com). Warranty starts with the date of registration. Without registration warranty starts according to serial number. This warranty covers defects in materials and workmanship.
Translation of the original instructions page 32 of 35 8 Service Your unit is not working? 1. Please contact Heidolph Instruments or your authorized Heidolph Instruments dealer via telephone or email. In Germany, Austria and Switzerland Tel.: 00800-5889708 (freecall) In USA 866-650-9604 In UK 01799-513320 Worldwide +49-91229920-74 Fax: +49 (0) 91 22 99 20 65 E-Mail: sales@heidolph.de 2.
page 33 of 35 Translation of the original instructions 10 Confirmation of condition of unit In case of repair 1. Details about the unit Model _________________________ Serial number _________________________ Reason for repair _________________________ 2. Has the unit been cleaned or decontaminated / sterilized? yes no 3.
Translation of the original instructions page 34 of 35 EG-Konformitätserklärung EC Declaration of conformity Vakuumpumpe Vacuum pump Wir, die Heidolph Instruments GmbH & Co. KG, We, Heidolph Instruments GmbH & Co. KG, Heidolph Instruments GmbH & Co.
page 35 of 35 Translation of the original instructions Disclaimer: Our technical literature is only intended to inform our customer. The validity of general empirical values and results obtained under test conditions for specific applications depend on a number of factors beyond our control. It is therefore strictly the users´ responsibility to very carefully check the validity of application to their specific requirements.