WhisperAir™ Oil-free Rotary Tooth Compressor
Model Series PCC & PCCMD – 50 HP
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
(T) 1.888.769.7979 • (F) 513.367.3125 • www.powerexinc.com
IN594501AV • 02/2016
Page 14 of 32
6.
The ventilation air speed at cooling air inlet must
be slower than 980 ft/min.
7.
Minimum volume of ventilation for local
ventilation B is 4,240cfm for model PCC500.
As shown in Figures
above, when the exhaust
fan is installed, make sure to leave 12-20 in. space
between the compressor and duct to facilitate
maintenance.
A flexible connector may be installed if desired. Make
sure the duct is supported by the ceiling or wall and not
by the compressor enclosure.
Wiring
Internal electrical wiring of the compressor has been
completed. Refer to the internal wiring, circuit diagram
that is packed into the control panel in the document
pocket.
A service disconnect must be installed ahead of the
compressor. The service disconnect may be a circuit
breaker.
RISK OF ELECTRICAL
SHOCK. Lock out and tag
out all sources of energy before servicing.
Wiring must be performed by a specialist in accordance
with national and local electric regulations.
Inappropriate wiring may cause electric shock or fire,
and may decrease the product life or cause failure of
the compressor.
1.
Open each panel as shown in the figure below.
2.
Connect the power cable (L1, L2, L3) to the
terminal block.
Use screwdriver
here after center
panel is removed,
right side panel will
swing out on hinges.
Use Panel Key here
