Trane Modular 20 to 35 Tons Parts List Page 11

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PKG-PRC003U-EN 11
Features and Benefits
Trane R-410A 3-D™ Scroll Compressor
Features listed below optimize the compressor design and performance:
Optimized scroll profile
Heat shield protection to reduce heat transfer between discharge and suction gas
Improved sealing between high side and low side
Additional features are incorporated in the compressor design for greater reliability:
Patented design motor cap for improved motor cooling
Improved bearing alignment
Improved resistance to dry start-up
Oil sight glass for evaluating proper oil levels
LowTorque Variation
The 3-D™ Scroll has a very smooth compression cycle, imposing very little stress on the motor and
resulting in greater reliability. Low torque variation reduces noise and vibration.
Suction Gas Cooled Motor
Compessor motor efficiency and reliability is further optimized with the latest scroll design.The
patented motor cap directs suction gas over the motor, resulting in cooler motor temperatures for
longer life and better efficiency.
Proven Design throughTesting and Research
The new R-410A 3-D™ Scroll compressor is the next generation of reliableTrane 3-D™ Scroll
compressors provided byTrane, the leader in scroll compressor technology
.
The R-410A Trane 3-D™ Scroll provides
important reliability and efficiency benefits
inherent in its design.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,
eliminating wear between the scroll involutes.
The fixed and orbiting scrolls are made of high
strength cast iron which results in less thermal
distortion and minimal leakage. In addition,
improved part isolation provides reduced
compressor sound levels compared to previous
designs.
Figure 3. One of two matched scroll plates - the distiguishing feature of the scroll compressor
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