SECTION 2 1100E, 1500E, 1800E USER MANUAL
13
2.3 SULLAIR COMPRESSOR
UNIT, FUNCTIONAL
DESCRIPTION
Sullair air compressors feature the Sullair
compressor unit, a single-stage, positive
displacement, flood lubricated type compressor. This
unit provides continuous compression to meet your
needs.
The 1100e through 1800e Series compressors are
factory-filled with Sullube lubricant. Refer to
Specifications on page 21 for more information on
fluid fill.
Sullair 24KT compressors are filled with a fluid that
rarely needs to be changed. Use only Sullair 24KT
fluid in the event that a fluid change is required.
Sullair recommends that a 24KT sample be taken at
the first filter change and sent to the factory for
analysis. This is a free service. The sample kit with
instructions and self-addressed container is to be
supplied by your Sullair dealer at start-up. The user
will receive an analysis report with
recommendations.
Fluid is injected into the compressor unit and mixes
directly with the air as the rotors turn, compressing
the air. The fluid flow has three basic functions:
1. As coolant, it controls the rise of air tempera-
ture normally associated with the heat of
compression.
2. Seals the clearance paths between the
rotors and the stator and also between the
rotors themselves.
3. Acts as a lubricating film between the rotors
allowing one rotor to directly drive the other,
which is an idler, and also lubricates the
bearings.
After the air/fluid mixture is discharged from
the compressor unit, the fluid is separated
from the air. At this time, the air flows
through an aftercooler and separator then to
your service line while the fluid is being
cooled in preparation for reinjection.
NOTE
With a Sullair compressor, there is no main-
tenance or inspection of the internal parts of
the compressor unit permitted in accordance
with the terms of the warranty.
CAUTION
Mixing of other lubricants within the compres-
sor unit will void all warranties.
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