thank you so much! i took this video and watched it in an hour and a halfas opposed to the 13 minutes because it is SOOOOOOOO damn informative. im in school and in the field and this was still so helpful. thank you again
Thank you so much to explained how TXv worked. 2ndly a very lmportent part for the refrigeration how to maintained superheat at air conditioning and Refrigeration system.
At 11.45 the pressure is shown 158 psig at compressor suction inlet. Actual measurement should have been 16 psig. Overall this was a great informative video. Hatsoff to sporlan. My request is to also upload a similar video for R404A as it is now widely used.
I have actually gone into theory, with techs and they nod their heads, yet while trying to explain, they get lost. Thanks for the video and it will become a regular test question, as my intention is not to put techs on the spot, but inform them of what they don't know. Funny thing, it is there in Black and White. Thanks again!
Awesome! very good video. Thank you for explaining. I've scoured youtube and the interernet and now with this visual, I finally have some clarity. Good visuals make all the difference. Thanks for that and using layman's terms.
Just wanted to add that 3/4 of a mechanics. Out there don't know how to use TP chart. Unfortunately, they have to buy five hundred dollars worth of equipment just to read the temperature difference. Unfortunately, this is the lack of vocational schools in our country. 50 years in the industry I tried to pass on the knowledge l Acquired To my fellow technicians. The manufacturers of refrigeration equipment should be more I Involved If they want us to sell their equipment. Well, that's my 2 cents, thanks.
At about 11:30 min into video / it should not be 158 psi at the compressor, trouble in the system?? look again the suction pressure should never be that high.
@@sporlanvideo so if you knew pressure drop across coil why check pressues? Couldn't you just compare temps, factor determined pressure drop to determine pressures? No refrigerant gauge hookup needed.
@@sporlanvideo surely only in the evaporator and condenser? They are the only places in which saturation exists and therefore you can read pressure from the p-t chart if you know the temperature?
If you think of it as adding heat to the liquid, saturation is the point at which the liquid cannot gain any more heat and remain a liquid. In this sense the liquid is saturated with heat. If you add heat to a saturated liquid it does not get warmer, instead it converts to vapor (by boiling generally) until all the liquid is gone. The saturated mixture exists during the conversion from liquid to vapor or vapor to liquid. In thermodynamics the percentage of how much of the mixture is liquid and how much is vapor is often called the 'quality' of the mixture.
This is because the saturation temperature is dependent on the pressure. The subcooled liquid is only subcooled relative to the pressure it is held at. So a refrigerant like 404A is a superheated vapor at -20C and 5psi where the same refrigerant is a subcooled liquid at +20C but requires a pressure of around 145psi to stay liquid at that temperature.
sir, i want to ask what is the reason: a 110 watt compressor runs ok in around 70 watts, ..low side stays in vacuum around 25 and high side around 200 psi.the pressure on high and low sides does not equalize if i turn off the compressor..
@@peteaceves5237OK then. The confusing part is RUclips removed the thumbs down numbers a few years ago so no way to tell if anyone disliked it. Also the OP never responded so we can only guess what he meant. If he means why is it being disliked, there are many potential reasons, you can't please everyone.
Thanks Sporlan, this is some very good information about the subject.
Thanks Sporlan keep it up great job
thank you so much! i took this video and watched it in an hour and a halfas opposed to the 13 minutes because it is SOOOOOOOO damn informative. im in school and in the field and this was still so helpful. thank you again
Thank you so much to explained how TXv worked.
2ndly a very lmportent part for the refrigeration how to maintained superheat at air conditioning and Refrigeration system.
Excellent video- thank you
Great video!
At 11.45 the pressure is shown 158 psig at compressor suction inlet. Actual measurement should have been 16 psig. Overall this was a great informative video. Hatsoff to sporlan. My request is to also upload a similar video for R404A as it is now widely used.
I have actually gone into theory, with techs and they nod their heads, yet while trying to explain, they get lost. Thanks for the video and it will become a regular test question, as my intention is not to put techs on the spot, but inform them of what they don't know. Funny thing, it is there in Black and White. Thanks again!
The old saying of " If you can't explain it, then you really don't understand it."
Awesome! very good video. Thank you for explaining. I've scoured youtube and the interernet and now with this visual, I finally have some clarity. Good visuals make all the difference. Thanks for that and using layman's terms.
...also, funny to see the older generation 4 iphone in the video when refering to the app, now that this is 6 years later...
Thanks from Bangladesh.
Thank you, well explained.
this video is the best ever very comprehensive thanks alot i love it
very nice appreciating
Thank you for this Video
Great!
Thank you.
Just wanted to add that 3/4 of a mechanics. Out there don't know how to use TP chart. Unfortunately, they have to buy five hundred dollars worth of equipment just to read the temperature difference. Unfortunately, this is the lack of vocational schools in our country. 50 years in the industry I tried to pass on the knowledge l Acquired To my fellow technicians. The manufacturers of refrigeration equipment should be more I Involved If they want us to sell their equipment. Well, that's my 2 cents, thanks.
Hi dear sir:is the ambient temperatur affect the pressur readings or shouldnt be considered?
Yours sincerlly :peeno
thanks
Nice.
tks
This is why I failed on my Exam on theory...I need the practical info
Same here
Thanks a lot sir....
At about 11:30 min into video / it should not be 158 psi at the compressor, trouble in the system?? look again the suction pressure should never be that high.
Thankyou
Could you take temp reading to determine pressures?
Yes.
@@sporlanvideo so if you knew pressure drop across coil why check pressues? Couldn't you just compare temps, factor determined pressure drop to determine pressures? No refrigerant gauge hookup needed.
Yes
@@sporlanvideo surely only in the evaporator and condenser? They are the only places in which saturation exists and therefore you can read pressure from the p-t chart if you know the temperature?
Cant find the app. Android store says it doesn't exist.
We have replaced the old chillmaster PT app with the Sporlan SMART Pro/R app. It has the same PT chart capabilities.
@@sporlanvideo Ok, thankyou. Not sure if you realize the link on your website still points to the old app.
Sir plz send me p-t chart of refrigerant R22&r134a
If the refrigerant is 100% vapor, what is the gas saturated with? Is that statement @ 1:13 an error?
Saturation is the point (pressure & temperature) where the fluid will be found both as gas or liquid based on its internal enthalpy.
If you think of it as adding heat to the liquid, saturation is the point at which the liquid cannot gain any more heat and remain a liquid. In this sense the liquid is saturated with heat. If you add heat to a saturated liquid it does not get warmer, instead it converts to vapor (by boiling generally) until all the liquid is gone. The saturated mixture exists during the conversion from liquid to vapor or vapor to liquid. In thermodynamics the percentage of how much of the mixture is liquid and how much is vapor is often called the 'quality' of the mixture.
It's confusing, that the superheated steam has a lower temperature than the subcooled fluid.
What superheated steam are youtalking about. We are talking about superheated refrigerant.
This is because the saturation temperature is dependent on the pressure. The subcooled liquid is only subcooled relative to the pressure it is held at. So a refrigerant like 404A is a superheated vapor at -20C and 5psi where the same refrigerant is a subcooled liquid at +20C but requires a pressure of around 145psi to stay liquid at that temperature.
sir, i want to ask what is the reason: a 110 watt compressor runs ok in around 70 watts, ..low side stays in vacuum around 25 and high side around 200 psi.the pressure on high and low sides does not equalize if i turn off the compressor..
Sir, you need te divulge so much more info. That's like asking, the man jumped off the roof to his death, but nobody knows why.......
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Who's hating on this?
What do you mean?
@@realSamAndrew People who disliked the video
@@peteaceves5237OK then. The confusing part is RUclips removed the thumbs down numbers a few years ago so no way to tell if anyone disliked it.
Also the OP never responded so we can only guess what he meant. If he means why is it being disliked, there are many potential reasons, you can't please everyone.
@@realSamAndrew Dislike numbers are still there depending on what browser you use.
@@peteaceves5237 I didn't know that, but I normally use the app, so no dislikes for at least 2 years now.
What happens if your pt chat only has the temp not the psig like my dumb teacher gave us
You can always download our Parker Sporlan PT Chart app on Google play or itunes.
!
Colors are backwards...Liquid should be shown in RED...
Yup
Llo