Powerex AS-XXX - Manual (Page 9)

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Powerex • 150 Production Drive • Harrison, OH 45030 • USA
• Guaranteed low oil carryover rate of
less than 2 PPM
• Three year warranty on compressor
pump
• High efficiency motors
• UL listed controls
• R134A Air Dryer (Optional)
The AD-XXX Series Powerex Duplex Air
Compressors have been designed,
broken-in and tested to meet the most
demanding specifications for low oil
carryover and long life in the
pneumatic climate control industry.
The units consist of two equally rated
motor-compressor assemblies mounted
on a single ASME tank. The compressor
motors are NEMA Class B design. The
AD-XXX Series Compressors are ideal for
instrumentation systems requiring an
alternate compressor for standby or
overload capacity. See Table 1 for motor
sizes and air delivery capacities available.
Compressor assemblies are available with
or without a factory mounted basic or
deluxe alternator/motor starter package.
An unloading feature is included on all
compressors to provide loadless starting.
Models with an alternator are prewired
and ready for operation. Internal wiring
allows for shutdown of either
compressor for repair while the other
compressor is running.
An alternating type operation is
desirable for many reasons. When a
duplex air compressor is alternated, the
temperature of both units is kept
above the ambient dew point to
minimize moisture deterioration and
corrosion. Also, the reduction in on-
time provides a lower average head
temperature with reduced oil
entrainment potential and improves
the motor life by holding down the
average heat rise.
Climate Control Duplex
IN259702AV 3/05
Specifications
Product
Performance
Specifications
Models & Options
Lubrication
Operating
Voltages
Compression
Cycle
Motor Overload
Protection
Pressure Switch
Settings
Overpressure
Protection
Outlet Air
Connections
Tank Sizes
California
Ordinance 462 (L)(2)
Isolation Mounts
1/2 Through
10 Hp Models
1Ш
3Ш
1/2 Through
10 Hp Models
1Ø and 3Ø
Lead
Lag
AD-XXX Series Powerex Duplex Air Compressors
See Table 1
See Table 2
Splash Lubrication System
115/230 Volts, 60 Hz
208-230/460 Volts, 60 Hz
Single-Stage
Overloads (Supplied with all Factory Mounted
Alternators; Otherwise Field Supplied)
Cut-In: Factory Set at Approximately 70 psig (490kPa)
Cut-Out: Factory Set at Approximately 90 psig (630 kPa)
Cut-In: Factory Set at Approximately 60 psig (420kPa)
Cut-Out: Factory Set at Approximately 80 psig (560 kPa)
ASME Safety Valve Factory Set and Sealed at
Approximately 115 psig (805 kPa)
1/2" NPT on 30 and 80 Gallon Tanks;
1" NPT on 120, and 200 Gallon Tanks
See Table 2
Meets requirements of this Ordinance
Vibration pads are included with each unit
Figure 1 - AD-XXX Series 2 Hp Duplex Air Compressor
with Optional Deluxe Alternator Package
Features