Capillary Tube Metering Device and Evaporator Refrigerant Flow! Superheat!
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- Опубликовано: 7 фев 2025
- This HVAC Video is on how the capillary tube metering device works and what the refrigeration cycle looks like in the evaporator while the refrigerant is metered by the capillary tubing. Superheat is the charging process for systems with capillary tubing. I go over the refrigerant stays in the evaporator as well as the bypass for heating mode. Supervision is needed by a licensed HVAC Tech before doing this as Experience and Apprenticeship garners Wisdom and Safety.
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Looks like the problem I had On Easter Sunday, I had An oil blockage in the caps ..you were right on when you replied great video my brother...thanx
Thanks AC!
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Thank you for the information, great video as usual.
Thanks Ron!
thank you for making videos!!
Thanks the Genius!
great video.
Thanks Jerry!
What is the best way to troubleshoot a cap tube metering device? Can I test with a thermocouple measuring temp on both sides, if so what kind o temperatures should I expect. If you have a video on this can you send me a link please. I do appreciate all your videos and your knowledge sir.
Thank you
Glad to help Salvador Dali! I appreciate when you all comment and let me know that they are helpful!
Acservicetech I have a question for you man....you know about the 30 + rule of thumb for the head pressure...so how you do for the suction side?
That 30+ rule of thumb is just a tip but always, always check the charge with either the superheat process for pistons and cap tubes, and subcooling for txv's while checking superheat for safety for the compressor. Suction has to do with the evap coil and the coil sat temp will be anywhere from 34-48 degrees usually depending on the inside wb temp- Here is the video that discusses some of that- ruclips.net/video/uEs99SSKjgE/видео.html&list=PLxnHR5_D2ojxZI3-xx03Bttxe3xCqUD87&index=22
Thank you for the help acservicetech 👍👍👍
I have a Goodman 4 ton condenser that for some reason is not cooling the house. low pressure is 64 / High pressure line is about 198 psi .
The evaporator has cap tubes , do you think I have a restriction? this year when I turned it on i thought I had restricted liquid line drier, I replaced that, evacuated the system to 29" no leaks. Charged the system and it has been working fine. 3 days ago, the fan went out, it was down for a couple of days, powered it back up,
and same issue I had earlier this year. What are your thoughts?
thanks
I would need to know the superheat and subcooling to tell, thanks!
Hi, is it possible to convert this evaporator from capillary tubes to txv?
You would have to add the distributor tubes instead of the large header you see as well as cutting out the cap tubes and bypass. We would normally replace the evap coil since the old cap tube evaps were so small, thanks
THANK YOU!! i MANAGED TO DISCOVER THAT THE CAP TUBE FILTER IS TOTALLY CLOGGED - AFTER REMOVING THE ACCUMMULATED CARBON - PRESSURES ARE OK NOW ...