3 Phase Energy Savings w/ Falkonair

HVAC School - For Techs, By Techs

Bryan Orr

Education, Business, Self-improvement, Careers

4.9 • 1K Ratings

🗓️ 16 March 2022

⏱️ 26 minutes

🔗️ Recording | iTunes | RSS

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Summary

Chris Micallef, the CEO of Falkonair, joins Nathan Orr at AHR to discuss energy savings for three-phase equipment. They also explore some of Falkonair's controls for compressors, especially on DC inverter equipment.

Falkonair has software that allows users to control all types and brands of three-phase compressors with compatible variable frequency drives (VFDs). The software recommends the compatible VFD based on the amperage readings. Falkonair aims to bring this software to the refrigeration industry and then move on to HVAC contractors and data centers.

The control unit adjusts the compressor speed to respond to changes in refrigerant charge levels (based on discharge temperature). These controls protect the compressor and maintain efficiency, even under less than ideal operating conditions. Energy efficiency can increase by 35% with Falkonair's control units in place. You can expect longer runtimes, a reduction in short cycles, and a reduction in humidity.

If the refrigerant loss is too great, then the control can also shut down the compressor. However, it should take less time for a facility manager to notice that refrigerant loss is happening. The controls use temperature probes, so they don't cut into the refrigeration circuit.

Although VFDs are good for reducing vibrational wear and tear, we have to be aware of potential issues with harmonics. Harmonics can damage the bearings, especially on pumps that don't have oil constantly lubricating the bearings.

Chris and Nathan also discuss:

VFD sizing considerations
How Falkonair's AI works with hot gas bypass
Software commissioning
Oil return sequences on DC inverter systems
Hertz ranges and limitations per compressor type
How Falkonair's control units can exceed 35% efficiency gains

Learn more about Falkonair at https://falkonair.com/.

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Transcript

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0:00.0	The HVAC School Podcast is made possible by these great sponsors.
0:09.0	Refrigeration Technologies at Refriggedech.com.
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	...

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