Scroll Enclosure Air Compressor 15-60 HP
Operating & Maintenance Manual
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
P 1.888.769.7979 • F 513.367.3125 • www.powerexinc.com
IN596202AV • 21 February 2023
Page 2 of 32
Description
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 oer 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 oers a dynamically balanced air
end which insures vibration-free operation. The rotary
design permits a continuous 100% duty cycle. No oil
separation, oil ltration, 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, at 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 xed 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 xed scroll so no valves are needed.
SPECIFICATIONS
Product SE Series Enclosed Scroll Air Compressor
Performance Specicaons See pg 2
Lubricaon Grease-lled Bearing
Operang Voltages 3Ø - 208-230/460/575 Volts, 60 Hz
Compression Cycle Scroll
Motor Overload Protecon Motor Protector/Circuit Breaker
Pressure Sengs Standard Pressure Models: 90-116 psig
High Pressure Models: 119-145 psig
Overpressure Protecon Safety Valve Factory Set and Sealed
Outlet Air Connecons See pg 2
Drive 3V Belt
Control Panel UL508A Listed
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.
Danger indicates an imminently hazardous
situation which, if not avoided, WILL result
in death or serious injury.
Warning indicates a potentially hazardous
situation which, if not avoided, COULD result
in death or serious injury.
Caution indicates a potentially hazardous
situation which, if not avoided, MAY result in
minor or moderate injury.
Notice indicates important information,
that if not followed, may cause damage to
equipment.
NOTE: Note indicates information that requires special
attention.
Since the air compressor makes up a high pressure
system, the following safety precautions must be
observed at all times.
1. Read all manuals included with this product
carefully. Be thoroughly familiar with the controls
and the proper use of the equipment.
2. Follow all local electrical and safety codes as well as
in the United States, the National Electrical Codes
(NEC) and Occupational Safety and Health Act
(OSHA).
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