Does Refrigerant Get Old or Wear Out?
Over the years, I have heard technicians say that refrigerant can wear out or “lose its blend” by sitting in a tank. This does not happen… at least not like that. What can and does happen is called “fractionation.” Refrigerant blends are composed of a mix of refrigerants with different vapor and liquid PT characteristics, […]
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3 Flavors of CO2 w/ Rusty Walker
In this episode Rusty Walker from Hill Phoenix talks through the three most common types of market CO2 systems and how they work. Secondary, Cascade and Booster.
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Short #26 – Temperature Mistakes
Can you really trust that temperature reading? In this short episode we talk aout some common mistakes techs make in making temperature measurements and what to do about it.
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Testing, Recovery, and Charging a Sealed System
There are many appliances with compression refrigeration circuits that do not have ports installed for testing, recovery, charging, and evacuation.  These can include window units, PTACs, fountains, refrigerators, and much more. This fact presents a challenge any time you suspect or know there is a refrigerant circuit issue. How can you diagnose and make a […]
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Common Concrete Anchor Fails
No matter what trade you work in, you will need to use a concrete anchor at one time or another. Here are some mistakes I have seen (and made) that you are going to want to avoid. Know your concrete Is it a concrete block hollow cell? Poured cell? Concrete slab? What is the PSI? […]
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Analog & Digital Manifolds w/ James Bowman
James Bowman is back and we alk about analog vs. digital manifolds and why both of them may still have a place in the industry
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Technician Head Trash
It's Friday at 6 PM. The schedule is clear, as far as you can tell. Other guys have been getting cleared right and left, so you call in standby. 5 minutes pass. 10 minutes pass. You check in again… and sure as &%$#! You get sent across town to another call that YOU KNOW has […]
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Two Less Common TXV Issues to Watch For
The most common diagnosis with expansion valves is failed closed or restricted, resulting in underfeeding of the evaporator. The symptoms are low suction, normal subcooling, and high superheat when a TXV fails “shut,” but there are some other issues to watch for that can actually result in overfeeding the coil. Schrader in the Port The […]
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Short #25 – A Costly Screwup
In this short episode we share some quick tips about keeping panels and insulation in place
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