Laboratory Vacuum Systems Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference. DESCRIPTION GENERAL Powerex Laboratory Vacuum Systems are designed to provide a vacuum source for laboratories and other operations requiring a reliable, proven vacuum producer. The systems include electric motor driven vacuum pumps, of either oil less or lubricated vane construction, particle filtration, vacuum receivers, piping and controls. Various options are available to make the system suit your needs, including electric or pneumatic assisted auto-purge. The lubricated vane compressors are factory filled with full synthetic paupalphaelefin (PAO) oil for wear resistance, sealing and cooling. The full synthetic oil is selected to give long service in most applications. Oil condition and filter condition should be monitored and action taken as appropriate based on whatever conditions are encountered during service. Oil less vacuum pumps are claw type sets, with synchronizing gearboxes utilizing synthetic gear oil for long life and reliability. The system vacuum receiver dampens pulsations and helps even out rapid transients in vacuum demand. It is not intended to act as a liquid separator or knock out. Receiver manual or auto drains are intended for use when incidental liquid accumulation occurs in the receiver. Separate liquid separators are available as an option and if liquid enters the pumps during service they will be damaged. All of the controls have automatic pump alteration and minimum run timers so that usage is equalized on multi pump systems and to prevent motor overload and damage from too frequent starting. Auto purge controls are available as an option for those processes requiring a fresh air flush before shutting down the off load pumps. The minimum run and auto purge functions are combined in the control as appropriate. SPECIFICATIONS Product Laboratory Vacuum Systems Operating Voltages Control Panel TEFC Electric Motor ASME Rated for 200 psi MAWP Tank Sizes Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA 1-888-769-7979 - www.powerexinc.com

Laboratory Vacuum Systems SAFETY GUIDELINES A SEPARATE SAFETY BOOKLET IS PROVIDED ALONG WITH THIS MANUAL. READ AND UNDERSTAND THE SAFETY BOOKLET. This manual contains information that is very important to know and understand. This information is provided for SAFETY and to PREVENT EQUIPMENT PROBLEMS. To help recognize this information, observe the following symbols. MAKE SURE EVERYONE OPERATING OR SERVICING THE COMPRESSOR READS AND UNDERSTANDS ALL THE INFORMATION PROVIDED. Danger indicates an imminently hazardous situation which, if not avoided, WILL result in death or injury. Warning indicates...

Laboratory Vacuum Systems The controls have a transformer to provide operating voltage. The transformer is sized for the loads imposed by the Powerex factory controls and should not be utilized for any other purpose. PXMI control panels (optional) utilize a back up transformer with a reserve transformer in use alarm. Local alarms are provided for low vacuum alarm and general fault alarm. The general fault alarm includes the reserve transformer in use, motor overload and high temperature alarm. The wiring connection point for the alarms is on the terminal strip in the control panel box, with good...

Laboratory Vacuum Systems FRAMES OR TANK MOUNT STRUCTURE Powerex designed the system to bear the weight and stress of the vacuum pumps, controls, and receiver tank. When lifting the system, use the designated fork lift slots or rig straps to lift the main system skid. Do not attempt to lift the system using individual component lifting hooks and eyes. Piping may need to be supported to avoid damaging the supplied flex connectors for intake and exhaust. OPERATION AT HIGH ALTITUDES: Vacuum pumps are sensitive to reduced atmospheric pressure encountered as altitude increases. Powerex will adjust...

Laboratory Vacuum Systems Pipe Size Requirements System CFM Minimum Pipe Minimum Minimum Pipe Size for 300 Pipe Size for Size for 100 feet feet 600 feet Approximate system CFM equals the number of pumps running times CFM in table below. (Data below is for reference only, if actual pump CFM is higher than shown, use the higher value.) HP If the system extends beyond 600 equivalent straight feet, use one size larger pipe. Pipe Size Equivalent length Equivalent length for 90o elbow, cross, for 45o elbow or tee 3.0 feet

Laboratory Vacuum Systems 1. 2. Make sure the piping is lined up without being strained or twisted when assembling the piping for the system. The exhaust piping should be kept short and have the least restriction possible. The flex connector supplied by Powerex may be repositioned (changed from vertical to horizontal and the elbow turned or removed) if desired to achieve a more effective installation to match the field installed exhaust piping. Repositioning is desirable if the final system plumbing design can be shorter by doing so. Never use any piping smaller than the pump connection. To determine...

Laboratory Vacuum Systems MAINTENANCE LUBRICATION FOR LUBRICATED VANE PUMPS Refer to the manual from the vacuum pump manufacturer for lubrication intervals and type of oil to use. Lubricated vane vacuum pumps are factory filled at Powerex with a high quality, synthetic PAO based ISO100 oil. The oil must be changed at intervals specified in the pump manual. If the gas being pumped through the vacuum system is known to be incompatible with PAO oils, the user must drain and refill the vacuum pumps with suitable oil before use. Failure to do so will void the warranty. If the oil is observed to be...

Laboratory Vacuum Systems TROUBLESHOOTING GUIDE Problem Lag Alarm Corrective Action Overload Tripped Reset overload; if problem continues, check motor amp draw Verify overload is set to the correct value (see electrical drawing) Verify wire gauge is correct for amp draw Pump/Motor Failure Check drive coupling; replace if needed. Verify that pump shaft turns freely; repair or replace as necessary Check vacuum discharge piping to verify air is being exhausted; repair or replace as necessary Verify voltage to the motor; repair wiring or replace motor as necessary Vacuum Consumption Switch Failure...