HVAC 089 fixed orifice piston closer look inside

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Target superheat chart I made from the formula for the formula and chart

Craig and Bryan both are great resources. here are some links below to help.

Craig with @acservicetechchannel does a great job explaining why the TXV is superior to the fixed orifice

Target superheat from Craig

Bryan Orr discusses target superheat @HVACS
HVACR school target superheat

My favorite HVAC App, we will be doing a video on this soon

articles on target superheat.

  1. Love2HVAC with Ty Branaman
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Комментарии
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As always your awesome. Wish I could take your classes in person

johnsewell
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Great and details video .Thank you sir

mamoonraziq
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What is the name of that compression fitting? Not a flare. Everything else is brazed. One compression fitting... Hmmm

davetysdal
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So at heat mode more refrigerant will be going to evaporator coil right

navaneethselvaraj
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Correct amount of the refrigerant was added, but still coils freezing up after 1-3 hours ac running, (piston fixed orifice R22)
You think is a restriction?
Many thanks!

Ray-wrwr
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If the metering device was placed in backward, would the liquid line freeze?

MrBabjo
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