Water in Evacuation 

Might add that if there is bubbling in the vacuum pump oil sight glass that is an indicator of moisture in the oil.

Very cool test, love your tools. My addition - I’m a certified Mitsubishi tech rep and since there no driers in the system you must do a triple evac. 4,000-nitro-1,500-nitro-500 decay test. I love the Navac 4cfm battery pump for residential because it doesn’t pull down as quickly as the 7+CFM pumps and still takes less than 10min to do the whole process minus the decay if you are using the right hoses.

Love TruBlu! Shoptalk mentioned tonight to say hello. Shoptalk sent me.

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Shop Talk sent us but I’ve been here many times great videos keep it up😎🤘

Shop talk sent us, nice video Jim

Love the site glass view. very visual. as always great video and explanation Jim

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Such an awesome video Jim! I always wondered why sometimes my vacuums would stall around 2500 or 3000 microns. Now I know

Shop Talk Sent Us. Nice demo.

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“Shop Talk Sent Us”. Great demonstration Jim

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Hello Jim. Good video. Shop Talk Sent Us (A.K.A. Zach). Thanks.

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Jim it was great to watch you on hvac overtime. I was able to download the COMBUSTION literature. Thanks for the information.

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Good job Jim! Shop talk sent us.

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Shop Talk Sent Us. Excellent tutorial. Thanks.

I came for the give away but I'm glad I stayed and watched. Good video thanks for taking the time. BTW I bought that same set up you are using.

This was a long video with tons of good info. Glad that it was not even one minute shorter!

Jim thank you for all you do .

Shop Talk Sent Us! Great video Jim. Have a great evening! God bless.

Cool to actually see the water boiling off. Thanks for the info and video.

Shop talk sent us. Great video

Aaaaaaaaammmmazing video thank you so much! This just answered so many questions I have had while using my trublu hoses

“Shop Talk sent us” Always enjoy the evacuation process. Did it on R-114 units on a sub

“Shop talk sent us”, love you videos Jim.

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Never used trublu can’t wait

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Purging some nitrogen through while pumping will help dry the system out considerably faster. Dry as well as good-n-tight.

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Outstanding demo, THANKS!

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Shop Talk Sent Us. Good info.

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Thank very much from Russia! Very best!

Thank for the video Jim. I'm curious, in the situation you demoed, would a triple evac help get the moisture out quicker. I have always thought that is why we triple evac but did not here you mention that. Thanks Edit: I saw this question asked and answered in the comments. New question, why do we triple evac then, if not to remove moisture????

Shop talk didn’t send me lol jk. It looks like there was still some water in the sight glass when you removed the core the 2nd time.

Yeah, cool it Waffles! 🐶

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Wow I can not believe I have not seen this video yet and it is the end of April 2021. Anyway subscribed and hit the bell to keep that from happening again. Thanks

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" Shop talk sent us " i'd be interested to see how much time would really be saved with these on the small stuff i work on. everything i work on these days is under 1 hp for the most part. usually 1/2 hp or less. i could see where these would be Majorly beneficial if i was Pulling down a 30 ton chiller system.

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How dare Bryan Orr interrupt a Jim B video and fun fact 😔

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Assuming evaporation is faster than sublimation is incorrect although the boring affect did accelerate the process becuase it can happen not just on the surface but also inside. Taking the boring affect aside, sulimation is just as quick as evaporation.

It was Good to see how water is get removed. anyway Is it good to be another solution if i heat the pipes with torch or cover the lines with thermic rays (you know it has 60'C)? i think it will be work, dont you?

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Thanks Jim!

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Rip to that pumps vac oil 😢 poe refrigerant oil is microscopic like vacuum oil does a deep vacuum pull all the moisture out the oil ?

Dry nitrogen is your friend. Triple evacuations are key and save a lot of time.

Question. So if the weather is warm and we need to leave vacuum pump overnight. Is it best to leave the condenser fan motor and blower motor running to help keep heat over any place the moisture may be collected in so it’ll keep heat on the pipes boiling the moisture?

Jim, if you have moisture in the system and you level out around 2000 microns, would it be helpful to sweep the system with nitrogen and bring it back to a positive pressure then blow the nitrogen out, or just let the pump keep the vacuum pulling?

Is that moisture still left at the sight glass or just oil from ref? If vacuum is taking longer, should I just keep pulling vacuum until it goes down or do triple evac and break it with nitrogen?

“moisture being absorbed by the copper” how do I find any materials explaining that process

thanks

“Shop talk sent us”

I had another technician burst a sprinkler. Filled the indoor coil with water. After blowing out. I watched the oil in my Fieldpiece turn white. A gallon and an hour later I had a deep vacuum.

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You can heated up to accelerate