Laboratory Air 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 The Powerex Laboratory Air Compressor System is designed to provide clean, dry air for applications where the quality of the compressed air is critical. The standard unit is rated for a maximum of 145 PSIG. Each system includes multiple oilless scroll air compressors, corrosion resistant air receiver, desiccant air dryers with purge control, a control panel and integrated dew point monitor. Systems are also equipped with dry type inlet filters, after coolers with condensate separators, check valves and ball valves for each pump. The air receiver tank has an electric timer type automatic drain and manual back up drain. The twin tower desiccant dryers are installed with ball valves and sized so that one dryer can meet full system flow needs. Final regulators are factory installed and set for a stable final pressure. Various options are available to make the system suit your needs, including a CO monitor or remote air intake capability. The Powerex scroll air compressor has advanced scroll compressor technology through the development of a completely oil-less unit. The Powerex Scroll Compressor offers a dynamically balanced air end which insures vibrationfree operation. The rotary design permits a continuous 100% duty cycle. No oil separation, oil filtration, or inlet valves are required on the Powerex scroll unit. The compressor is virtually maintenance free. Systems are available with advanced PXMI touch screen controls to allow operation and monitoring of the unit. The systems utilize a programmable logic controller (PLC) to operate the number of pump motors required to meet demand. The control provides compressor high temperature, motor overload, and high dew point alarms. SPECIFICATIONS Product Laboratory Air Open Scroll Systems Operating Voltages Control Panel Pressure Settings ASME Rated for 200 psi MAWP Tank Sizes Table of Contents Specifications PXMI Controls Optional Webserver/ Gateway Card Set-up Pg 14-19 Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA 1 1-888-769-7979 - www.powerexinc.com

Laboratory Air Systems The Powerex oil-less rotary scroll air compressor is based on the theory of scroll compression. A scroll is a free-standing, intricate spiral bounded on one side by a solid, flat plane or base. A scroll set, the basic compression element of a scroll compressor, is made up of two identical spirals which form right and left hand parts. One of these scroll components is indexed or phased 180o with respect to the other so the scrolls can mesh. Crescent-shaped gas pockets are formed and bounded by the spirals and the base plate of both scrolls. As the moving scroll is orbited...

Laboratory Air Systems The regenerative desiccant consists of two (dual) towers filled with desiccant. Each tower is switched on and off stream, alternating the air system stream and then being regenerated. Dry purge air pulls moisture from the desiccant and carries the moisture out of the system. The duplex twin tower desiccant dryers have isolation valves and each dryer has a condensate removal stage, a coalescing and an after filter. Differential pressure indicators show when the elements need to be replaced. pumps in the system. The touch screen HMI (Human Machine Interface) panel on the...

Laboratory Air Systems All electrical hook-ups must be performed by a qualified electrician. Installations must be in accordance with local and national electric codes. Make sure power supply conductors are sized adequately for full system demand. INSTALLATION Disconnect, tag and lockout power before attempting to install, service, relocate or perform any maintenance. Do not lift or move unit without appropriately rated equipment. Be sure the unit is securely attached to lifting device used. Do not lift unit by holding onto tubes or coolers. Do not use pumps to lift other attached equipment....

Connect flex line to the ports making sure flex line is not pinched or kinked. 4. Follow steps 1 to 3 for flex line from dryer package to outlet of receiver tank. NOTE: All piping is provided and sealed for this portion of installation. 5. If applicable, locate and attach intake inline air filter to outside source air or header. Flex line is provided when attaching intake of compressors to rigid piping. 6. Connect outlet of tank/dryer package located on dryer module to outlet source piping. SAFETY VALVES, PRESSURE VESSELS AND PIPING Powerex systems are shipped with ASME safety valves sized so...

Laboratory Air Systems If all pumps are running in the wrong direction, change the incoming power leads to correct rotation. START-UP AND OPERATION 1. 2. 3. 4. 5. Follow all procedures under “Before Start-Up” before attempting operation of the vacuum pump. Make sure all selector switches are in the OFF position. Switch on electric source. Open tank connection valve or valves completely. Using the selector switches on the control panel, turn on each pump—motor in the “Auto” mode until all are running. Check for excessive vibration, unusual noises or leaks during operation. If problems are detected,...

STANDARD FLOW SCHEMATIC PRESSURE PRESSURE SWITCH PRESSURE SWITCH - LLTV TRANS. - HIGH RELIEF VALVE INWE FILTER CARBDN FILTER PRESSURE SVTTCH rJT"|~ HIGH TEMP SWITCH 1) PIPING TD THE INLET ~BT OTHERS AND £) INSTRUNLNTS DOVN STREAM OR SOURCE VALVE TD EE SUPPLIES IT ETHERS, FLOW SCHEMATIC W/ OPTIONAL REMOTE INLET

SCROLL PUMP Displays Pressure level and Dew Point level Pressure level will change from green to orange when high Dew Point level will change from green to orange when approaching alarm level; will change from orange to red when in alarm Go to MAIN Current Date and Time Go to ALARM STATUS Displays operating status, run hours, NFPA alarms, and Service alert of each pump on the system Displays Pressure level, and Dew Point level and status like on MAIN page