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SS-PRC005-EN4
Features and
Benefits
Trane 3-D Scroll Compressor
Simple Design with 70% Fewer Parts
Fewer parts than an equal capacity
reciprocating compressor means
significant reliability and efficiency
benefits. The single orbiting scroll
eliminates the need for pistons,
connecting rods, wrist pins and valves.
Fewer parts lead to increased reliability.
Fewer moving parts, less rotating mass
and less internal friction means greater
efficiency than reciprocating
compressors.
The Trane 3-D Scroll provides important
reliability and efficiency benefits. The 3-D
Scroll allows the orbiting scrolls to touch
in all three dimensions, forming a
completely enclosed compression
chamber which leads to increased
efficiency. In addition, the orbiting scrolls
only touch with enough force to create a
seal; there is no wear between the scroll
plates. The fixed and orbiting scrolls are
made of high strength cast iron which
results in less thermal distortion, less
leakage, and higher efficiencies. The
most outstanding feature of the 3-D
Scroll compressor is that slugging will
not cause failure. In a reciprocating
compressor, however, the liquid or dirt
can cause serious damage.
Low Torque Variation
The 3-D Scroll compressor has a very
smooth compression cycle; torque
variations are only 30 percent of that
produced by a reciprocating compressor.
This means that the scroll compressor
imposes very little stress on the motor
resulting in greater reliability. Low torque
variation reduces noise and vibration.
Suction Gas Cooled Motor
Compressor motor efficiency and
reliability is further optimized with the
latest scroll design. Cool suction gas
keeps the motor cooler for longer life
and better efficiency.
Proven Design Through Testing and
Research
With over twenty years of development
and testing, Trane 3-D Scroll
compressors have undergone more
than 400,000 hours of laboratory testing
and field operation. This work combined
with over 25 patents makes Trane the
worldwide leader in air conditioning
scroll compressor technology.
Voltage Power Supply
20 through 120-ton units have four
voltage options in 200, 230, 460 and
575, resulting in improved stock
coverage.
Passive Manifolding
Trane offers a parallel manifolding
scheme that uses no moving
mechanical parts. This feature assures
continuous oil return, again providing
greater system reliability. And greater
reliability means optimal performance
over the life of the unit.
System Control Options
Trane offers four system control
options on 20 through 60-ton units and
three system control options on the 80
through 120-ton units, each using
solid- state electronics. These options
allow the unit to be ordered only with
the controls needed. In addition, they
come factory installed, saving field
installation costs.
Coil Frost Protection
Trane offers FROSTAT™ with the VAV
system control option on the 20
through 120-ton units. FROSTAT is the
industry’s most reliable method of coil
frost protection and assures that your
system will provide energy efficient
comfort at part load conditions.
Remote Evaporative Liquid Chiller
(EVP) Control Option
This option allows chilled water to be
generated remotely from the
condensing section.