Powerex WhisperAir PCC Series Installation, Operation And Maintenance Instructions

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Installation, Operation and Basic Maintenance Instructions
Description
The Powerex WhisperAir™ Rotary Tooth Compressor
System is an enclosed two-stage air-cooled oil-free
rotary tooth air compressor. A touch panel control is
installed on the compressor enclosure.
Air Flow
Air drawn in through intake filter (IF) and intake
throttle valve (IV) is compressed in the low-pressure air
end and is discharged to the intercooler (CI). Air,
cooled in the intercooler (CI), is discharged to the drain
separator for intercooler (DS1), removing the
condensate water, and is compressed in the high-
pressure air end (Eh). Then, the compressed air passes
through the pulsation damper (PD) and flows into
aftercooler (Ca). Air, cooled in the aftercooler (Ca), is
then discharged to the drain separator for aftercooler
(DS2), removing the water and is delivered to the air
outlet.
The water, separated by the drain separators
(DS1/DS2), will be discharged through electronic drain
valves (EV1/EV2). When the compressor switches to
unload operation, the air trapped in the pulsation
damper (PD) and the high-pressure air end (Eh) is
blown off through unload silencer (US). The check
valve (CV) is installed downstream of pulsation damper
(PD) to prevent compressed air blows back into the
compressor during unloaded operation.
For PCCMD models, the intake air is configured for
connection to the facility remote intake piping.
Oil Flow
Oil is circulated by oil pump (OP). Oil flows from oil
tank (GC), through oil cooler (Co) and oil filter (OF), to
bearings and the gears. When the oil pressure reaches
a given value, by-pass valve is opened to decrease the
pressure.
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
(T) 1.888.769.7979 • (F) 513.367.3125 • www.powerexinc.com
WhisperAir™ Oil-free Rotary Tooth Compressor
Model Series PCC & PCCMD – 50 HP
Diagram 1: Air Flow and Oil Flow
Symbol Name
IF Intake filter
US Unload silencer
IV Intake valve
EI Air end (low pressure)
Ci Intercooler
EV1 Electronic drain valve
Eh Air end (high pressure)
OP Oil pump
GC Oil tank (gear case)
Symbol Name
Co Oil cooler
OF Oil filter
FN Cooling fan
PS Pulsation damper
CV Check valve
Ca Aftercooler
Electronic drain valve
EV2
(for aftercooler)
Drain separator
DS1
(combined with EV1)
Drain separator
DS2
(combined with EV2)
IN594501AV • 02/2016
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