Step by Step How to Vacuum Down Mini Split Using Analog Gauges Release Refrigerant Check for Leaks

Detailed step by step for vacuuming down Mini Split with analog gauges, releasing refrigerant, and checking for leaks.

Link for How to Pump Down a Mini Split

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[sevoserver]

I just installed a Tosot 230V 9000 BTU mini split in my pool house. I found this video extremely helpful. This was my first install but I’m pretty handy with electrical and building. For vacuuming the lines and releasing the refrigerant I found your video the most helpful and clear. Thanks for posting your video!

[daviddiaz]

I do everything around my home but have always been afraid of the HVAC system. Thanks for explaining things so well and making this feel easy. New tools and skills in my toolbox. Thank you!!

[RonSellsArizona]

Thanks so much. I'm seventy two and have always been my own Mr. Fixit. But this was a first for me. I have watched several videos on the subject and this is the best. Articulate, concise, and Very Very helpful. Thanks so very much. Oh yeah, totally worked fine and I am now cool.

[kstewart]

This is the best video hands down that I have seen on YT in regards to this, especially learning how to keep the refrigerant If you do find a leak. Your the Hero we all need but don't deserve. Thanks man.

[UltratecJS]

Great video my friend. I went from guessing on what I was doing with my DIY mini split install, to actually understanding what's happening on the back end.

[davidmclain]

Man...great video. I've watched a dozen of these vids on minisplits. Thank you for making one just for the vacuum portion of the install.

[erinmagers]

THANK YOU!! Your videos gave me the confidence to try this and save $1000 (quote from multiple HVAC people).

[billbill]

Excellent tutorial no nonsense right to the point all this needed thank you so much

[dannyf]

Thank you for the clear and helpful video.

[pointblank]

Excellent video! Thanks for all the details.

[mathieulessardr]

thank you I will install my heat pump this weekend👍

[BarryandKaren]

Do you smear anything on the flares/line fittings when installing them on both units or is everything always installed dry? I've heard of blue nylock?

[noealanis]

Is the adapter the same for all mini splits?

[joshtapia]

why does my blue hose (low pressure) fit directly on to the service port? do i need that adapter still? Im starting to think my service port is 1/4?

[danle]

Hi, when you connect the lines to the outside unit, do you need to use Nylog and a torque wrench like the manual says? Thank you so much for the video.

[stanwalls]

That was great thank you it well until I unscrewed the blue hose from the adapter instead of the unit and lost a lot of coolant before I got the adapter off so he much damage did I do? The unit is working and blowing cool air, thanks.

[joeybalogny]

great videos love them awesome you can use tru blu great thread locker awesome video thanks for the help.

[macleanclassics]

Question: why do some videos show a shrader valve step ? Is that not required ?

[tamdang]

Thank you you have show how to vacuum this system so all mini split requires vacuum right?

[garytodd]

A micron guage along with vacume guage will show you a lot . Your vacume guage will give you confirmation that your system has a vacume on it if it is depressing the shrader valve correctly. The micron guage will give you a much better indication of moisture in system. My guage went to almost 30 inhg very quickly. but the micron guage was taking forever to drop down. To below 500 i would like to see 300 or less on the micron guage. Then prefer it stays under 500 after about ten to 15 min isolation test is prefered. The vacume drops the boiling point of water way down. So the vac pump can suck the water vapor out of the system. I was in a hurry and very tired and connected the vac hose and it didn't depress the schrader valve very well if at all. I did not have the micron guage attached. And released the refergerant. After getting some rest i started second guessing if i had it vacumed sufficiantly. So to error on the safe side i recovered the refergerant and started vac with micron guage. Shrader valve removed 29 inhg was obtained quickly but 8 hrs later the micron level got down to 500 micron. Im assuming it took some time to dehydrate the moisture from the oil. HVAC is not my prefered line of work. I do it when required. Have most of the equipment to do it correctly. I do it when required for myself or friends and chillers at my employment. And have to refresh my memory when doing so. My point. Is if you have a micron guage avaiably. Use it.