Hot Gas Bypass vs Digital Scroll Compressor

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In this video, we compare Hot Gas Bypass to the Emerson Digital Compressor.

HOT GAS BYPASS provides an artificial load on the evaporator by introducing a portion of high pressure, high-temperature gas to the evaporator/suction side of the system. An inexpensive and simple way to keep the HVAC system running without freezing the coil but a huge energy waster. The hot gas bypass valve is old technology used on a limited basis today quickly being replaces by modulating compressors or variable capacity compressors.

The Copeland SCROLL DIGITAL offers compressor modulation from 10-100 percent, allowing cooling systems to automatically adjust capacity as needed while reducing energy consumption. This scroll technology allows for precise HVAC system control, is more efficient than on/off compressors, and allows for almost continuous operation during dehumidification modes. Variable-capacity control is accomplished by timing the compression by engaging and disengaging the top scroll while motor speed remains constant. Advantages are efficiency, precise control, very low turn down to 10%, and constant velocity refrigerant allowing for effective oil return. For some of the compressor sizes, the "modulating" can produce unwanted noise. Special considerations for location and attenuation are recommended.

Thank you for watching and please let me know if you have any questions!
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Видео Hot Gas Bypass vs Digital Scroll Compressor канала Insight Partners HVAC TV