Synopsis
The HVAC Know It All podcast is hosted by me, Gary McCreadie. These are my thoughts, my jobs, my tools....This is my HVAC life.
Episodes
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Walk-In Box Condenser and Evaporator Location and Piping Considerations w/John Broughton
09/03/2021 Duration: 43minWalk-in box design is super important for the operation and longevity of the system. On this episode we focus on placement of condensers, condensing units, evaporators and piping practices.
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Hydronic Commissioning w/Tony Furst
02/03/2021 Duration: 01h06minGreat conversation with Tony Furst from Armstrong on hydronic commissioning, commissioning agents and final start up.
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Tandem And Trio Compressor Sets w/Trevor Matthews
25/02/2021 Duration: 57minTrevor graces my presence once again to talk tandem and trio compressors sets and how they work.
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Cooling Tower Maintenance w/Kevin Cherewaty
18/02/2021 Duration: 45minI finally catch up with Kevin to talk cooling towers and tower maintenance.
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A2L And Other Flammable Refrigerants w/Peter Capuciati and Bryan Johnson
12/02/2021 Duration: 50minInteresting times await us with the changing regulations to refrigerants. We need to be in the know when it comes to their flammability and safety precautions. Great conversation with Pete and Bryan from Bluon.
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Blower Wheel Imbalance
12/02/2021 Duration: 13minOn this micro podcast, I discuss blower wheel imbalance and how it can happen. Check out the short YouTube vid as well! https://youtu.be/JjKRnjNCgTg
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Tools Invented By Technicians And Supco TradeFox w/Jim Adcox
09/02/2021 Duration: 01h06minJim Adox from Supco tells us about the TradeFox brand, how it started and how it's helping technicians in the field bring their tool invention ideas to market. Email your ideas to ideas@supcotradefox.com
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Ammonia Compliance And Jobs Gone Wrong w/Shane O'Connor
02/02/2021 Duration: 01h08minWe talk to Shane about his experience in ammonia refrigeration over the last 20 years. Shane discusses his new ammonia compliance company and shares some stories of jobs that didn't go so well from a safety standpoint. Plate Heat Exchanger link. https://armstrongfluidtechnology.com/en/products/plate-and-frame-heat-exchangers
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Air Conditioning In Low Ambient Conditions
25/01/2021 Duration: 25minOperating air conditioning in colder weather (low ambient) can have its challenges but it's doable if you have the correct knowledge and education to do so. Danfoss Co2 valve welding https://youtu.be/CbBH5rbNsCw
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From Croatian Plumber To German Trane Technician w/Marinko Kusenic
21/01/2021 Duration: 58minGreat story from Marinko on his journey as a plumber into HVAC. Marinko talks about a his burn out and hospitalization and how he recovered, moved to Germany and began working at Trane. Check out the annealing vid https://youtu.be/25TrYGEyQ2Y
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Single Phase and Three Phase Compressor Electrics w/Trevor Matthews
18/01/2021 Duration: 01h18minTrevor Matthews from Emerson gets back on the podcast to talk three phase and single phase compressor electrics.
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Skilled Trades Mobile Applications: Blue Collar Guru and HVAC Know It All
14/01/2021 Duration: 17minThis podcast is a public service announcement to give an update on Blue Collar Guru and the HVAC Know It All App.
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Control Voltage Transformers and How To Protect Them
08/01/2021 Duration: 11minIt is very important to protect control voltage transformers with a fuse or breaker. If there is ever a short in a the low voltage circuit, the fuse or breaker will protect the transfer from becoming defective.
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Industrial Refrigeration w/Joshua Rees
30/12/2020 Duration: 48minWe hooked up with Josh Rees to talk industrial refrigeration and the differences between it and HVAC. We talked about oil loss in screw chillers and flooded evaporators. Here is the article written by Josh https://www.hvacknowitall.com/blogs/blog/593346-industrial-refrigeration---oil-loss-in-screw-compressors#.X-z_yGlyaDY Refrigeration Cycle article and video https://www.hvacknowitall.com/blogs/blog/595767-the-refrigeration-cycle-explained#.X-z_-GlyaDY
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The Refrigeration Cycle Explained
22/12/2020 Duration: 31minThe refrigeration cycle is not the most exciting topic in the world and I kinda felt that while talking into the mic. However, the refrigeration cycle is super important to understand and this is my take on the Refrigeration Cycle Explained. Website article https://www.hvacknowitall.com/blogs/blog/595767-the-refrigeration-cycle-explained#.X-JHSGlyaDY Boiling water at room temperature vid https://youtu.be/OMALAeAvKkg
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Parker Sporlan Zoom Lock Education w/Herb Schupp and Emily Morello
18/12/2020 Duration: 57minI got the chance to learn about the Parker Sporlan Zoom Lock with Emily and Herb. Since I had never used the tool myself I had many questions. Herb and Emily provided some great educational insight into the Zoom Lock Max and Zoom Lock Push fittings. Check out HVAC articles at www.hvacknowitall.com
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Hot Gas Defrost w/A Rapid Cycle Solenoid Valve
16/12/2020 Duration: 28minA recent service call lead to me to a faulty rapid cycle solenoid valve used in hot gas defrost. The solenoid valve was slightly bypassing causing an elevated evaporator temp. Check out www.hvacknowitall.com for more HVAC/R related articles and tips.
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Compressor Overheat, Liquid Injection and CO2 Refrigerant w/Don Gillis
11/12/2020 Duration: 01h18minCompressor overheat is the number one cause of compressor failure. We talk to Don Gillis from Emerson regarding this and we also get into a conversation about CO2 as a refrigerant. Check out www.hvacknowitall.com for HVAC related articles. FixQuick vid https://youtu.be/7qcX2kLjyBY
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Compressor Failure w/Trevor Matthews and Matt Waxer
04/12/2020 Duration: 01h11minOn this episode Trevor Matthews from Emerson and HVAC Tech Matt Waxer hop on with me, we chat about compressor failures and how to prevent them. Check out www.hvacknowitall.com for articles and tips.
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High Limit Switch and Spark Ignitor Troubleshooting
01/12/2020 Duration: 23minOn this episode we discuss a high limit switch and spark ignitor that were diagnosed as faulty through a series of troubleshooting steps. Check out this article and video https://youtu.be/gqP2OsF7Gx8 https://www.hvacknowitall.com/blogs/blog/581997-troublshooting-gas-fired-ignition-problems#.X8a7D1NyaDY