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Ouch. The freon isn't worth it. That is exactly the reason I use low loss fittings. I don't use them during evacuation but after evac I bring the system up to 25 #'s or so of pressure and then put the low loss fittings back on. Especially with 410a.

Originally Posted by ga-hvac-tech

The ones I use are YJ brand... a ball valve that attaches to the end of the hose... I get then in a 3 pack. Have not bought a pack in a while, forgot the price.

http://www.yellowjacket.com/HVACRPro...&l=4&c=28&p=87

The angle valve is the one I use.

These types one still has to unthread and risk getting sprayed. The quick disconnects you just push on and snap off.Just a little pop sound. Now you can try this trick with your types. Push in on valve while unthreading. Big difference. ( Capish )

Originally Posted by ga-hvac-tech

The ones I use are YJ brand... a ball valve that attaches to the end of the hose... I get then in a 3 pack. Have not bought a pack in a while, forgot the price.

The angle valve is the one I use.

Ya gotta watch those.(not just that brand) I had one, that I guess the "o" ring, or something else inside went haywire on. Gave me all kinds of bad readings. I came close to condeming the compressor.

Originally Posted by zachhvac

Same one as gahavac probably, they come in a pack sometimes, my new ones are aluminum , much better than the metal ones i still have from years ago.
You lose about three inches of charge every time.

The ones I use are YJ brand... a ball valve that attaches to the end of the hose... I get then in a 3 pack. Have not bought a pack in a while, forgot the price.

http://www.yellowjacket.com/HVACRPro...&l=4&c=28&p=87

The angle valve is the one I use.

Originally Posted by VTP99

Zach,
Which valve ones are you referring to ? Got a pic ?

Same one as gahavac probably, they come in a pack sometimes, my new ones are aluminum , much better than the metal ones i still have from years ago.
You lose about three inches of charge every time.

Originally Posted by misterfix

the burned list. Trusted someone else and paid the price. He said the guages showed vacuum after running the recovery unit. Put the torch to the liquid connection on the bad compressor, while pulling up on the line. Well, it came off, and about half of the system charge came with it. Along with the 22 was oil and a ball of fire. The burn was on my upper arm and right hand between thumb and index finger. Still cannot figure out how that much charge was left in the system, and why the recovery machine did not remove it. I have much to learn.

misterfix

Ouch, My instructors in school kept on telling us to cut the refrigerant lines and don't torch them off. I've done similar things but without the large fireball. Your experience gives me something else to consider.

I could imagine your situation happening with pump down freezer and only opening the suction side of the manifold during evac. I have seen a few residential A/C with solenoid on the liquid line. It would do the same thing if you only pulled from the vapor side.

I hope you recovered well from the burn, I know they don't always heal without scarring.

I use plain hoses, and place a ball valve on the end. That way I can change the hose... and change the valve... I find that with the valve staying on the hose (not on and off), the hose lasts a lot longer. The valves seem to last a good ways also... Especially if one replaces the 'O' ring in the coupler...

Originally Posted by zachhvac

I use the valve ones, those quick connects can be a pain, plus the valved ones last longer,

Zach,
Which valve ones are you referring to ? Got a pic ?

I use the valve ones, those quick connects can be a pain, plus the valved ones last longer,

Originally Posted by ReeferTechy

Thanks for the info. Are these worth buying? Right now I have a set of Titan II Gauges with seal rite hoses.

Also, do most people have separate gauges for each refrigerant? (Eg: one for R-22 and one for R-410A?)

I only use one on the high side if the pressure is likely to be excessive. Just add it temporarily. Snaps right off the high pressure port. You do have to maintain them (seals). They come straight or 90*and yes two gauges for those two refrigerants.

Originally Posted by jpsmith1cm

You and your hippie crap.

Rub a little dirt on it and get back to work like a real man would.

Poo on you j, my hippie stuff works and you know it

I feel your pain. I was on my knees removing the caps to put my gauges on a unit and when I removed the LL cap I discovered that the schrader core was missing. Did I mention that I was on my knees so it lined up almost dead on with my "twins". It started spewing liquid out all over my jeans. The first thing I did was use my hand to cover the sensitive area and moved as fast as I could to get away from it. It still froze my jeans to my leg and burned my hand pretty bad. I am happy to report all other areas down there were unaffected.

I do. Too hard to accurately read R410A gauges when using on an R22 system.

Originally Posted by VTP99

Reef,
Seal rites thread on were as quick disconnects push on after threading on coupler in place of cap.

Thanks for the info. Are these worth buying? Right now I have a set of Titan II Gauges with seal rite hoses.

Also, do most people have separate gauges for each refrigerant? (Eg: one for R-22 and one for R-410A?)

Originally Posted by zachhvac

I use this,,,,,,,,,,,,,,on everything, it was first dr recommended for a serious burn

http://www.morningstarhealth.com/8478334004.html

You and your hippie crap.

Rub a little dirt on it and get back to work like a real man would.

yup i have been there and done that, or should i say DONE WITH THAT, I was in the field for about 3 yrs and it was break time, I just had to take the gauges off the liquid line filters on a rack in a supermarket, there is 1200# in this system. i took the gauges off and the valve did not reseat. and sprayed liquid out about 3 feet. scared the brown right out of me since everyone else was on break and there was noone to help me. so what did I do??? I put my finger over the hole. didnt hurt that bad, but looking back perhaps I should of used something else. this was on a mezzinene and there was no exahust fan so it would of gotton sucked in the a/c system and spread through out the store and would of have to evac the store. lesson learned...

I think it all depends on how much oil gets on your hand in the process. I have noticed that oily discharge is worse.

large blow outs will defiantly burn ya..but it seems the more i do this that the smaller ones doe not bother me as much. When the co. had installers riding with me they would run scared when a little let off. One even wanted to take me to redi med after i got a little on my hand, i just warmed it up with my other hand and kept on working.

Originally Posted by Joe Harper

That looks ok, but as a former teenage fireworks expert, and someone that cant seem to hold on to the torch 100% of the time, this is the stuff right here:

Ive used them, both Joe, the silvadeen kills the pain, but it cant begin to keep up with the other stuff.

That looks ok, but as a former teenage fireworks expert, and someone that cant seem to hold on to the torch 100% of the time, this is the stuff right here: