furnish sound attenuating enclosure as a
factory-built option, delete the sound enclosure
from this section and consider other means for
meeting noise abatement requirements, such as: (1)
other types of compressors which are furnished with
sound attenuating enclosures, (2) field erected
equipment enclosures from sources other than the
compressor manufacturer, and (3) soundproofed office
or personnel enclosure.
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n.
Maximum sound levels one meter horizontal from compressor and 1.5
meters 5 feet above floor as measured per CAGI S5.1: 84 dBA, 90
dB for any octave band.
o.
Maximum compressor speed:
550 rpm
p.
Maximum piston speed:
3 m/s 590 fpm
q.
Maximum power per 47 L/s 100 ACFM:
16.40 kW 22 hp.
2.3.3
Additional Performance Requirements
2.3.3.1
Air Quality
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NOTE: Compressors used to provide breathing air
shall be situated to avoid entry of contaminated air
into the system and suitable in-line filters
installed to further assure breathing air quality. A
receiver of sufficient capacity to enable the
respirator wearer to escape from a contaminated
atmosphere in the event of compressor failure is
also required.
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Air at compressor intake will
be considered breathing air quality
conforming to CGA G-7.1, Type
I, Grade D or better. Air compressors shall
introduce no material, gases,
or particles, or chemically alter any
materials that will adversely
affect or reduce the quality of the air
passing through the unit.
2.3.3.2
Ambient and Inlet Conditions Operating Ranges
**************************************************************************
NOTE: Designer should furnish required information
to complete the specification.
**************************************************************************
Allowing for rational engineering performance adjustments due to variations
in ambient and inlet conditions, the compressor shall be designed,
equipped, and furnished to be fully operational without abnormal wear
throughout the entire range between and including the limits of the winter
and summer design conditions specified.
a.
Summer design conditions:
Inlet air: [_____] degrees C F dry bulb and [_____] degrees C F wet
bulb temperatures, [_____] percent relative humidity Inlet cooling
SECTION 15214N
Page 14
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