Learn how a Capillary TXV A/C system works on a mobile vehicle. This is a beginning lesson on mobile A/C for anyone starting to work on Air Conditioning on cars, trucks, and mobile equipment.
Thank you so much for these videos. They cover everything that no one else has been able to organize and explain in a suitable manner. Keep teaching your great.
Wow! I am a retired master tech/ shop owner and this is one of the best training videos I've ever seen. The animation added to the video content is amazing. Thanks for taking the time to publish such an amazing educational video. I've been doing this for 21 years and wish i had something like this when i started in automotive AC systems.
Good day sir what would be a problem if the senario is 50-60 psi suction side and the discharge line is normal 175 -200psi at the first start of the compressor the temp is ok(40-45 psi suction)then after few minutes the engine is running the suction side will read 50-60 psi still the discharge is normal.thank you hope you can answer my query.
In residential system we use thermocouple on both suction and discharge line and measure the values to derive eventually super heat. Is there a reason why that method is not used.
Does the capillary tube read temperature or pressure? At time 17:45 you said psi. The relationship between temperature and pressure would depend on the charge level and other factors?
You are correct, the capillary tube senses temperature that changes the pressure in the tube causing the TXV to move. Sometimes I get so into my presentation-, my speaking is getting ahead of the thinking. Sorry for any confusion. PP
@@ProfessorPentane it’s all making sense after watching your AC theory videos. I forgot that saturation temperature is close to pressure with automotive refrigerants. Thanks so much Prof Norman.
