How a Digital Compressor Works

In this video you will see a live recording of a digital compressor as we discuss the inner workings, acoustics, energy savings and controls strategy.
Learn more about Insight Partners at the products we represent at www.insightusa.com.
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.
Emerson’s Copeland Scroll Variable Speed compressors are designed with AC drive controls that modulate the compressor speed. This compressor speed modulation allows for precise capacity control. Advantages are efficiency, low acoustical characteristics and precise control. Special considerations are required to ensure oil return which usually prohibits low turn down capabilities. Usually the minimum allowable turn down is in the 20-40% range.
Thank you for watching and please let me know if you have any questions!
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[@tgram4894]

Good video . I’m working on this same unit in 2024 . Id appreciate more videos like this. Specifically on Aaon as well .

[@BasketballAve]

Awesom video

[@JohnnyJr396]

Thanks. Can you explain the inputs that mainly control the capacity? I’m guessing it would depend on coil temp but can’t see how it would know how long to keep engaged.

[@blingmotions6996]

Can we just put a run capacitor with power? What will happen

[@toyinorodare4072]

Thank you for the update.
However I have an existing Fixed Head Compressor how can I modulate it with change in Ambient Temperature to achieve low Condensing Pressure at difference Temperature

[@user-nv7os3uo5o]

I have a problem can you help me?