Chapter 4: Installation - QED ADDP Operation Manual

ADDP Manual

Chapter 4: Installation

INSTALLATION
This chapter describes the installation of the air compressor.
AIR COMPRESSOR INSTALLATION:
QED Environmental Systems usually does not supply the air compressor. It is best
to buy the compressor from a local supplier who provides service.
NOTE: An automatic drain on the compressor receiver tank significantly
reduces the load on the air filters, extends the life of the filter elements and
reduces system maintenance.
The air compressor provides the air necessary to drive the system. The
compressed air passes through a two stage filter/regulator and then into
the pneumatic system where it powers the DDP and controls operation of
the system.
NOTE: The information on compressors is for reciprocating piston compressors.
A centrifugal compressor produces about twice the air of a piston compressor
for the same horsepower.
To select a compressor, follow this formula: a reciprocating piston compressor
should not run more than 50% of the time. For every 1.5 Gallons Per Minute
(GPM) of water, the compressor should have 1 HP. For every 100 Gallons Per
Day (GPD) of fuel, the compressor should have 1 HP. At a minimum, the
air compressor should be in the 1 to 1-1/2 horsepower (HP) range with a 20
gallon holding tank. A 1 HP air compressor allows the system to remove
100 GPD of fluids. 1 HP provides approximately 3.5 cubic feet per minute
(scfm) of free air.
Revision 6 – November, 2008
Page 13