วีดีโอ

So helpful! Thank you very much Jim!

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.

Great video.

How long is the blue hose? It looks too short leaving you cramped

Nitroge and then vacuum help

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.

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?

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

I have to get water out of waste veg oil long term use for using as fuel in a engine in a vehicle, under a vacuum what pump is suitable for it? Thanks.

I bought all this but don’t use it. By the time I hook it all up, I can hook up my field piece manifold with 3/8 hose and pull vacuum in about the same time. Yes this is faster. But I have to use a micron gauge and more fittings. I don’t deny an advantage I just don’t see it when I have to carry more stuff up a 3 story apartment roof and hook up more stuff. I save 3 minutes but spend 10 making more trips up and down the ladddr etc.

Very nice Video, Jim. Easily understood, good instruction.

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?

May I know how to use this set on the package unit since the package unit can't pull the core out.

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

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?

Thankyou Jim,great info video

Thank very much from Russia! Very best!

Is the Blue hose made of a material that has negligable offgassing at sub 100micron? The material be more hydrophobic too?

Science!! Thanks!!

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 ?

Here it the thing tho you usually only can pull thru a 1/4 " port unless your at the rack and you have access to 3/8 angle valve. They don't speed up the evac that much unless you have that 3/8 access

Jim has changed the way my guys and company do business and how we dehydrate systems down super low and follow his notes and recommendations. It is amazing how their coil tools and Trublu hoses with the Fieldpiece VP87 8CFM pump will pull a system down. We will frequently do double or triple evacs in the amount of time, one evacuation would have taken on the old hoses and equipment. Saved time is a saved money and a better installation. As we all know, a quality installation will help keep the equipment functional longer. The science of it all is amazing.

Outstanding demo, THANKS!

Looks like a field connection from the true blue 3/4'' to 1/4'' inch with that butterfly tightener does is actually come from the factory from 3/4'' to 1/4''.

Thank you, my daughter and I always learn a lot from your videos.

Great video Jim!. .

Straight and to the decay point. Thank you ! I often wonder why manufacturer literature doesn't mirror this same easy process. I've been working with vacuum for a short amount of time, and there's been plenty of convulsions. So far I have found that less restriction definitely means less time with the vac pump. Those large ID hoses are great. Whoever designed them deserves a hug and a raise.

I love my Blue Vac Pros and my True Blues, amazing stuff

Great video Jim!

👍

Jim, thank you for sharing all the knowledge

EXCELLENT demonstration - I fwd this to people when they ask why I use core tools and not just hook up my manifold and a pump with a bunch of little hoses. My 'Go-to' setup for a residential system is an Appion Hose to the Suction side service port with an Appion core tool, my Hilmor 5cfm pump, and a ball valve and gauge on the liquid side service port.

I do not know how I got to this video? 🤔 . The algorithm got me here.

Great video. Imo, if you are coming from 1/4 hoses, then jump to the trublu. If you already have the Appion 1/2 hoses its not worth it to save a few mins.

If you are pulling a vacuum on a system with an old filter drier are you dehydrating the filter drier desiccant?

Question: When making repairs on a system (or replacing a compressor). If we are replacing the filter drier, is moisture really a cause for concern? I would assume at that point proper de-gassing is more a priority rather than trying to remove moisture with the pump. So a vacuum of 5000 microns or less should be OK. But a vacuum under 500 microns with a 10 minute decay test would be better.

I'm new in the HVAC-field and I'm from Germany. I like the big diameter of the hose. We have always 5/16" SAE connections at the R410a and R32 heatpumps. Can I use the Kit also for 5/16" connections? Is there an adpater included? Maybe it`s a stupid question, but I'm new in this field.

Do you recommend vacuuming your designated vacuum hoses? I've been doing it & wanted to know if I'm wasting my time. I keep them sealed off when not in use

Good video! Can someone help me understand why the water will become ice in this situation? When the pressure is so low, even ice should have melted or even directly evaporated. I understand that the temperature has dropped as well when pulling, but which one dominates here?

Good explanation! But I think the 1/4 hose is clogged or blocked. There’s no hissing sound at all!

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

I do a good bit of mobile heavy equipment air conditioning repair. This year I’ve started using a micron gauge and am always trying to do a better job. While working R134 systems, I have the tools to change a schrader valve out on a charged system but haven’t found the core tools that have the extra port to pull a vacuum while I have the tool on the service port while having the schrader core out. My question, would I gain anything going to a better large ID vacuum hose if I was still running it thru my 4 way manifold and the system that still has schrader valves? I have been watching lots of HVAC videos. Very few quality content creators for R134 mobile systems, but so many for the HVAC side of things. A lot carries over obviously, but still some differences. Thanks for any help.

Hi Jim, I constantly follow your Tutorials I respect you very much, you can show me some specialized literature for the HVAC sector, obviously I don't hope to find them in Italian translation, it is also good in English, thanks from a colleague who lives in Tuscany - Italy

My Appion leak at the cut off handle. Between 1500-1700 every time.

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????

I had a former boss who swore synthetic 10w40 was the same thing as JB Black Gold 🤦‍♂️ he literally acted like I was some kind of primadonna because I wanted vacuum pump oil for my vacuum pump. Dude even went as far as trying to pour synthetic motor oil into the shit and contaminated a gallon of good pump oil. He really was convinced they were the same

Best video fore vacumm ever!!! Great job!!!! Thank you

Does purging with nitrogen help to expel moisture before evacuating?

More than a few times I’ve come across a catastrophic Leak that is open to the atmosphere for several days with rain. I’ve been told that the POE oil holds onto moisture. Will that moisture be able to be pulled out of that oil? or is a preemptive compressor change out still the best approach?

language is the wins off launig.. great video!!!!!