Powerex AS-XXX User Manual download pdf (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

1Ø

3Ø

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

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