How To Pull A Vacuum In Less Than 10 Minutes - The BEST Way-

Do those big blue hoses really make that much a difference? You still have all those necked down adaptors, and service valves . The hoses are a lot better quality, and are much better at holding vacuum then regular gauge hoses, but I don’t buy that the hoses provide that much less restriction in close coupled situations. It is great that you placed your micron gauge in the proper place, furthest away from the vacuum pump. Nice vacuum pump.

Just shared your page with my father. I’ve watched your channel for some time and have a great appreciation for how your trade skills are turned around to help skilled diy’ers and also skilled tradesmen learn a few skills by bumping this and give a extra 1/8” to seat or mark it correctly in order for a great line up of layout. As for the rest of you old timer diy’ers listen to this kid. He’s going places and he’s going to help you service your furnace or AC or heat pump. Take care kid. Nice work.

Is everything tactical now?? 😂 nice job

I'm a HVAC technician,I believe you can achieve a better vacuum in the system by hocking up a manifold gauge on the high side & low side on the system for the vacuum to pull out not only air but also any moisture and stock liquid and debris in the system and if you must use one hose,I also believe that the liquid side or high side is the best side use.

Great video but could you show us how to break the vacuum with refrigerant on the high side?

Have a good supply of nitrogen on hand, sweep the system well with the nitrogen, and then its very easy to pull a vacuum because the moisture is gone.

10 Minutes? Why it takes me 60minutes?

Amazing the way you explain everything! I wish you’d let me come along to work with you for at least a week i know i can learn so much from you. Unfortunately you’re a bit far from me but I’d give it a shot to learn about hvac

that's impressive and a must have "unless you are charging by the hour" LOL

Did I miss you purging the air pocket between the ball valve and the Schrader valve before you pushed it in? I'd imagine once you open the suction valve you have to crack the nut of the schraeder adapter to let the air bubble out? Or am I wrong about thinking that?

Hey Dave. Just wanted to somehow reach out to you. I’m a maintenance supervisor for an apartment complex. I feel I owe you a debt of gratitude. I’ve been watching your videos for sometime now and thought you should know I’ve learned a ton of information. Because of you I’m able to replace an entire AC system inside and out. As Well as serving and repairing for this property along with others within this same company. I really just wanted to thank you and this is the only way I know how. You’re the best. Thank you again!

So I mean as a homeowner planning my install, I wouldn't need the valve core removal tool, but it'll take significantly longer to pull vacuum right? My hoses with my gauges will allow me to pull vacuum, without messing with the valve cores, Right? I mean it looks like a great tool and all, but I'm talking about saving $80 for a little extra time on my end. Also on the fence wither I really need a micrometer to measure vacuum, no doubt it's a great too, at $170 is it a must have?? Can I get away with checking vacuum on my gauges? Ugh I'm going to bite the bullet and get a couple valve core removers I found so $20 ish ones, and a $180 vacuum gauge,,,,

Nice setup man. I bought the Milwaukee 18 volt pump because I have plenty of the brand already. I definitely say stick with the true blue setup. I bought two of the Navac black vacuum hose setups. They’re ok, but the ends pop off and the gaskets I’ve had trouble with. I found I personally don’t like anything hose or valve related with Navac. I absolutely like all there electronic devices. I can’t wait to buy the bender. I probably should’ve bought that pump, but oh well. They have awesome equipment. The true blue hose set up is the only way to go! So simple. Do you feel it will do well if you’re pulling down condenser as well? Or will you add two hoses then?

You’ve got to spend some money to make money. Stop pulling through your manifolds!

Can't this serve as a leak test? I mean certainly the system is going to not hold a vacuum if your connections aren't tight right?

How do you protect the vacuum cps sensor from refrigerant?

Hey there, i got a question.

Good place to buy vacuum pump kit?

If you get the makita to milwaukee converter you can use either dewalt or milwaukee batteries. Saves from having to spend a fortune on navac batteries

generally i've been taught to bump in nitrogen during a deep vac, this way it seems like you dont have to do that just wondering

How would you go about adding refrigerant if needed on a brand new install with this setup? I was always taught to add the refrigerant through both vapor and liquid sides of the lineset before opening up the king valves, thanks

So $1000 dollar set up minus the vacrometer, got it ☺️

Why not just get a 1/2" hose for 90 bucks. My co worker has the true blue set. Waste of money. Kit comes with 10 adapters you dont need. Get the impirul hose 1/2" - 1/4

HEY DAVE GREAT VIDEOS,ARE YOUR INDOOR COILS TXV ON 1 HOSE SETUP

Thanks for keeping actual HVAC guys in business

This is excellent! I assume this is a new installation with a dry line set and evaporator? And you’re only pulling down the line set and evaporator? I wonder how that pump would do pulling down condenser as well with moisture? I got tested yesterday, using my Milwaukee battery vacuum pump (wish I would have bought the Navac though). I had to pull down a condenser, line set and evaporator on a service call leak check and repair (leak on evaporator suction side) with enough moisture in the system to make you very impatient on pulling down a vacuum.
(I switched to my 115 volt field piece vacuum pump for this after a short while, changed the oil one during the process and triple evacuated, breaking with nitrogen twice).
All I can say is, wow there’s a difference on pulling vacuums, depending on the size, situation, moisture, etc. of the system. And one size don’t fit all 🤦🏻‍♂️

But I’m the knucklehead head that would of watched this awesome video quickly, and got even more frustrated, because your video shows a deep vacuum in minutes, when I’m standing around and it’s now been 4 hrs! Great video though man! (I know now that your situation is a standard evacuation with a clean system, tight, and no condenser and no triple evacuation needed as it’s not a LC&R job, I assume a new installation).
I will buy that pump for those situations for sure, I already have the true blue hose and it’s excellent! Every job is different and requires different methods or setup though to achieve a clean, tight and dry system.

how much for the true bluehose？

How come you didn't release the liquid line to the system 🤔

Do the pumps collect the old fluid?

Do we ever talk about permits for the diy'er? Warranty's that need to be registered by a licensed contractor? Before you say it in not a contractor but the avg Joe should know all the facts.

I dont know its worth its weight in gold.
I usually see guys doing this go do other things. I dont know if the extra "speed" it provides is worth it.

put on gloves .......lmfao

I have an 8 cfm navac can I still use it on residential units? I know it might freeze moisture but as far as damage goes could it mess anything up? Given I don’t try to pull the deepest vacuum known to man.

I WATCH A LOT VIDEOS ABOUT INSTALLING CENTRAL AIR CONDITIONER 👍👍👍👍LET TALK TO THE POINT 😱😱😱😱IF YOU VACUUMED THE SYSTEM CORRECTLY 😱😱😱😱AND IT IS HOLDING 👍👍👍👍YOU DO NOT NEED PRESSURE TEST😱😱😱😱AN I CORRECT ✌️✌️✌️✌️✌️

Does a refrigerant hurts a micron gauge when exposed to it?

Good learning video. For a diy, you can use the harbor freight 2 stage pump, a 1/2" navac or other vacuum hose, and you do need two valve core removal fittings and of course the micron gauge. You're all in for tools for a fast vacuum down for under $500 and if you change the vacuum oil regularly, would have a system that can last years. Large diameter hose is the key for a fast evacuation.

Would zip tie the high side not look cleaner?

Did you open the high side port? 😂

You ever seen a long radius elbow soft lad

Can we get 500 microns with a 2.5cfm in 20min? Cannot get past 1200microns in 20min. Any suggestions?

Definitely use 2 core removal tools. You can save the life of your vaccum gauge. So it stays accurate.

I found SPC Vacuum Micrometer is not accurate. It usually shows 200-300 lover than fieldpiece in my experience

very nice thanks! but I didn't see you open liquid live valve?

I love your videos! Thanks for sharing your knowledge.

What about the startup ? How long was your line set? Did you have to add or recover ect. Not trying to be a jerk I just know how the internet can be. Anyhow love my NAVAC tools

I hope those zip ties got snipped

What if you change out the condensor and have no refrigerant at all in the system should the king valves be closed or open when vacuum the system

The CPS VG200 supports a positive pressure of 400PSI with the caveat that not all micron sensors are designed for such a positive pressure and need to be sealed with a ball valve before releasing the freon!