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How Improper Handling and Low Airflow Kill HVAC Compressors Without Warning with Glen Schwarzman

Release Date: 06/02/2025

HVAC Service Tips to Find Hidden Failures, Prevent CO Risks & Win Clients with Tyler Nelson Part 2

HVAC Know It All Podcast

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HVAC Know It All Podcast

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HVAC Know It All Podcast

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HVAC Know It All Podcast

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HVAC Know It All Podcast

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In this episode of the HVAC Know It All Podcast, host chats with , Founder & CEO of , to kick off a two-part conversation about the unique challenges of HVAC systems in the cannabis industry. John, who has a strong background in data center cooling, brings valuable expertise to the table, now applied to creating optimal environments for indoor grow operations. At Harvest Integrated, John and his team provide “climate as a service,” helping cannabis growers with reliable and efficient HVAC systems, tailored to their specific needs. The discussion in part one focuses on the complexities...

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HVAC Know It All Podcast

In part 2 of this episode of the HVAC Know It All Podcast, host , Director of Player Development and Head Coach at , and President of , switches roles again to be interviewed by , Vice President of HVAC & Market Strategy at . They talk about how much today’s customers really know about HVAC, why correct load calculations matter, and the risks of oversizing or undersizing systems. Gary shares tips for new business owners on choosing the right CRM tools, and they discuss helpful tech like remote support apps for younger technicians. The conversation also looks at how private equity...

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HVAC Know It All Podcast

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HVAC Know It All Podcast

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More Episodes

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Glen Schwarzman from Copeland about compressors and refrigerants. They discuss why using the wrong refrigerant can cause problems and void warranties. Glen explains different types of compressors, how variable speed tech works, and the importance of protecting compressors with things like phase monitors. They also cover tips for oil return in modulating compressors and why understanding new tech is key for HVAC techs. The episode is full of helpful info for anyone working with modern HVAC systems.

Glen Schwarzman explains how using the right refrigerant and compressor protects HVAC systems and avoids costly failures. He breaks down the differences between single-stage, two-stage, and variable speed compressors and why electrical protection is important. Glen shares tips on oil return in modulating compressors and the role of vapor injection in heat pumps. He also stresses the need for techs to learn modern HVAC technology to better serve customers and avoid costly mistakes.

Throughout the episode, Glen explains why using the correct refrigerant is crucial to avoid compressor damage and warranty issues. He walks through different compressor types, how variable speed technology works, and why electrical protections like phase monitors matter. Glen also shares tips on keeping oil flowing in modulating compressors and how vapor injection boosts heat pump performance. He encourages techs to embrace new HVAC tech and use resources like Copeland Mobile to stay informed.

Expect to Learn:

Why using the right refrigerant matters for compressors.
The differences between single-stage, two-stage, and variable speed compressors.
How electrical protections like phase monitors keep systems safe.
Tips for oil return and vapor injection in modulating compressors.
Why learning modern HVAC tech is important for techs today.

Episode Highlights:

[00:33] - Intro to Glen Schwarzman

[01:55] - Why using the right refrigerant matters

[03:47] - Compressor types: single-stage, two-stage, variable speed

[06:09] - Electrical protection and phase monitors explained

[08:29] - How variable speed compressors handle oil return

[12:02] - Importance of Electrical Protection for Variable Speed Compressors

[13:31] - Importance of learning modern HVAC technology

[16:34] - Tips for diagnosing compressor issues

[17:11] - Vapor injection and cold climate heat pumps

[18:26] - What to check before replacing a compressor

[23:19] - Is a Compressor Really a Pump? Glen Explains the Difference