Scroll Enclosure Air Compressor 30 HP to 40 HP 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 Scroll Enclosure Air Compressors are designed to supply continuous oil-free air by using the most advanced scroll technology. These turn-key packages are extremely quiet and offer electronic control that will reduce electrical power consumption. The Powerex Oil-less Rotary 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 vibration-free 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. 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 180° 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 around the fixed scroll, the pockets formed by the meshed scrolls follow the spiral toward the center and diminish in size. The moving scroll is prevented from rotating during this process so the 180° phase relationship of the scrolls is maintained. The compressor’s inlet is at the outer boundary of the scrolls. The entering gas is trapped in two completely opposite gas pockets and compressed as the pockets move toward the center. The compressed gas is discharged through the outlet at the center of the fixed scroll so no valves are needed. Parts List Performance Specifications Grease-filled Bearing Operating Voltages Compression Cycle Motor Overload Protection Motor Protector/Circuit Breaker Pressure Settings Cut in: 90 psig Cut out: 116 psig Cut in: 119 psig Cut out: 145 psig (High Pressure Units) Overpressure Protection Safety Valve Factory Set and Sealed See page 2 See Page 6, Chart 3 Control Panel SE Series Enclosed Scroll Air Compressor Tank Sizes Table of Contents Specifications Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA 1-888-769-7979 - www.powerexinc.com

30 HP– 40 HP Scroll Enclosure Air Compressors SPECIFICATION CHART Model Discharge Connection Discharge Air Approach Temp *HP indicates high pressure model. SAFETY GUIDELINES 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 and imminently hazardous situation which, if not avoided, WILL result in death...

30 HP - 40 HP Scroll Enclosure Air Compressors GENERAL SAFETY CONT. 9. Do not wear loose clothing or jewelry that will get caught in the moving parts of the unit. Surface may be hot even if unit is stopped. 10. Keep fingers away from a running unit; fast moving and hot parts will cause injury and/or burns. 11. If the equipment should start to vibrate abnormally, STOP the unit and check immediately for the cause. Vibration is generally a warning of trouble. 12. To reduce fire hazard, keep unit exterior free of oil, solvent, or excessive grease. An ASME code safety relief valve with a setting no...

30 HP - 40 HP Scroll Enclosure Air Compressors INSTALLATION CONT. TRANSPORTATION BY CRANE Use openings at bottom of the unit to lift up by cable, lifting straps etc. Make sure all lifting devices are rated for the maximum load. SUGGESTED VENTILATION SYSTEM The temperature rise in the room must be kept to a maximum of 10 F. The BTU capacity of the vent system should be sized for the full operating HP rating of the compressor. Suggested fan capacity at 0 static pressure is shown below. If static pressure is higher, the fan capacity should be increased. Be sure to use pads in order to protect the...

30HP - 40HP Scroll Enclosure Air Compressors INSTALLATION Cont’d WIRING All wiring and electrical connections must be performed by a qualified electrician. Installations must be in accordance with local and national codes. Overheating, short circuiting and fire damage will result from inadequate wiring. The Powerex Scroll Enclosure Air Compressor is completely factory wired and requires only a 3 phase supply circuit. A set of terminals is provided for connection of the supply conductors and ground conductor. See Figure 3 below for more detail. Wiring must be installed in accordance with National...

30HP - 40HP Scroll Enclosure Air Compressors INSTALLATION Cont’d GENERAL FAULT DRY CONTACT CONNECTIONS 1. Turn the compressor off and lockout the power to the compressor per OSHA standards. 2. Remove the door panel from the scroll cabinet to access the operating panel. 3. Output wires should be connected between terminals 10 and 11. The dry contacts are normally closed; when there is a fault or loss of power to the system, the contacts open. The contact rating is as follows: 240VAC/2A or 30VDC/2A, maximum. 4. For larger load devices such as a horn or emergency light, a relay should be used. 5....

30HP - 40HP Scroll Enclosure Air Compressors INSTALLATION Cont’d SAFETY VALVES Safety Valves must be installed on every receiver. The flow capacity of a safety valve should be equal to or greater than the capacity of the compressor. 1. The pressure setting of the safety valve must not be greater than the maximum working pressure of the air receiver. 2. Safety valves should be placed ahead of any possible blockage point in the system, i.e. shutoff valve. 3. Avoid connecting the safety valve with any tubing or piping. 4. Manually operate the safety valve every six months to avoid sticking or freezing....