PMAC Air Compressor
Powerex
•
100 Mundy Memorial Drive
•
Mt. Juliet, TN 37122
•
USA
P 1.888.769.7979
•
F 513.367.3125
•
www.powerexinc.com
IN598601AV
•
01/2020
Page 2 of 12
This compressor/pump is NOT equipped and should NOT be
used “as is” to supply breathing quality air. For any application
of air for human consumption, you must fit the air compressor/
pump with suitable in-line safety and alarm equipment. This
additional equipment is necessary to properly filter and purify
the air to meet minimal specifications for Grade D breathing as
described in Compressed Gas Association Commodity Specifi
-
cation G 7.1 - 1966, OSHA 29 CFR 1910. 134, ANSI and/or Cana
-
dian Standards Associations (CSA).
DISCLAIMER OF WARRANTIES IN THE EVENT THE COMPRES
-
SOR IS USED FOR THE PURPOSE OF BREATHING AIR APPLICA
-
TION AND PROPER IN-LINE SAFETY AND ALARM EQUIPMENT
IS NOT SIMULTANEOUSLY USED, EXISTING WARRANTIES ARE
VOIDED, AND POWEREX DISCLAIMS ANY LIABILITY WHATSO
-
EVER FOR ANY LOSS, PERSONAL INJURY OR DAMAGE.
Breathable Air Warning
Components
Oil-less Scroll Compressor Pumps
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.
Dry Type Inlet Filter
The 2µ filter provides protection for the precision components
within the compressor. This filter must be serviced at regular
intervals to maintain compressor performance. See page 4 for the
recommended maintenance schedule.
Isolation Mounts
The basic unit is supplied with isolation mounts. The installer may
substitute these mounts for a set of their own choosing. However, it is
recommended that Powerex review these alternate isolation mounts
that will be used in place of the supplied mounts.
Permanent Magnet AC Motor
The permanent magnet motor is very compact and is more efficient
compared with traditional induction motors.
Inverter
The inverter accepts 500 to 750 Volts DC which and changes it into
3 Phase 350 Volt AC to power the electric motor. This inverter also
provides data outputs which may interface with other systems via
analog and digital signals.
Default outputs:
Analog:
Power Consumption
0 to 10 V or 0 to 20 mA
Fault Signal: Normally Closed
24V
Fieldbus:
MODBus
Installation
Unpacking & Receiving the Unit
Immediately upon receipt of the compressor system, the unit
should be inspected for any damage which may have occurred in
shipment. Any shipping damage must be immediately filed with the
freight carrier. Repair or replace damaged items before use.
The compressor nameplate should be checked to see if the unit is
the correct model and voltage as ordered.
Do not operate unit if damaged during shipping,
handling or use. Damage may result in bursting
and cause injury or property damage.
Application
When the scroll compressor is to be used in applications other
than the compressing of atmospheric air, please contact a Powerex
representative for engineering and warranty information at 1-888-
769-7979.
Installation Site
1. The scroll compressor must be located in an environment
compliant with the compressor's intended use. If being
installed in an alternate location, please obtain prior approval
for change of location from Powerex.
2.
The area should be free of excessive dust, toxic or flammable
gases, moisture, water and direct sunlight.
3. Ambient temperatures of –35°F to +104°F are allowed. The
upper range of +104°F has a maximum on time of 4 minutes.
This is to ensure proper operation and prevent overheating.
4. Ambient Relative Humidity below 96% is allowed. Condensation
is not permitted.
5.
Clearance must allow for safe, effective inspection and
maintenance.
6.
Systems supplied without an aftercooler require an approved
check valve and safety valve to be installed downstream of the
compressor’s exhaust.
7. Air receiver(s) or alternate drive devices may be used to ensure
that the motor manufacturer’s recommended number of starts
and stops are not exceeded. Please refer to manufacturer for
details.
NOTE:
Contact Powerex for evaluation of ambient conditions
beyond the parameters above for special reduced duty cycle and
product life requirements.
Ventilation
1.
If the scroll compressor system is located in an enclosed area,
an exhaust fan or other means with access to outside air and
make up air must be installed.
2. Never restrict the cooling fan exhaust air.
3.
Never locate the compressor where hot exhaust air from other
heat generating units may increase the compressor’s operating
temperature.
