The Best Way to Find a Refrigerant Leak at the Port!
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- čas přidán 29. 08. 2024
- In this HVAC Training Video, I show the Different Methods used to Test For Leaks at the HVACR System Ports. The Schrader Valve Cores must be Checked to Find if they are Leaking. A Valve Core Removal Tool can be used to Replace a Valve Core while the System has Refrigerant without Recovering the Refrigerant. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #oil #refrigerant #refrigerantleak #leak #leakdetection #port #refrigerationcycle
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Electrical Diagnosis Tools:
UEI DL389 Multimeter amzn.to/2xAdaJf
UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ
Magnet Jumpers- amzn.to/2PyKPQZ
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JB 6 CFM Vacuum Pump - amzn.to/2nqbvo8
CPS 4 CFM Vacuum Pump - amzn.to/2DxgPwY
Appion Valve Core Removal Tool - amzn.to/2uYr8WL
Appion Blue 3/8" to 1/4" Vacuum Hose - amzn.to/2uYlVyc
Appion Red 3/8" to 1/4" Vacuum Hose - amzn.to/2uYg6Ro
Yellow Jacket 1/4" by 1/4" 3’ hose - amzn.to/2umtcod
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Supco Vacuum Micron Gauge - amzn.to/2v1JRiA
JB Vacuum Pump Oil - amzn.to/2mGrlXy
Checking the Charge:
Yellow Jacket Refrigerant Gauge Set amzn.to/2aenwTq
Refrigerant hoses with valves amzn.to/2aBumVI
Yellow Jacket Gauge set & hoses amzn.to/2vLVkV9
Yellow Jacket 4 Port Manifold w Hoses amzn.to/2BkuGIq
Digital Refrigerant Scale amzn.to/2b9oXYl
Ratcheting Service Wrench amzn.to/2dGV4Nh
FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4
FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6
Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8
QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg
RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn
Fieldpiece ST4 Dual Temp Meter amzn.to/2wc1ME3
Fieldpiece Bead K Type Temp Sensor amzn.to/2DBwKfs
Fieldpiece Wet Bulb Temp Sensor amzn.to/2RRI7Tw
Fieldpiece TC24 Temp Clamp amzn.to/2qHLyjZ
Flaring Tools:
Yellow Jacket Flaring Tool - amzn.to/2OBxGlM
Spin Flaring Bits 1/4", 3/8", 1/2", 5/8", 3/4"- amzn.to/31BCs8Z
Yellow Jacket Flaring Tool with Set Depth - amzn.to/2QIKsQH
Yellow Jacket Torque Wrench - amzn.to/2NRR68Q
Uniweld Swage and Flare Kit- amzn.to/2T55jyn
Nylog - amzn.to/2MLJcch
Ridgid Tubing Cutter - amzn.to/2DnjjR1
Wolverine Tube Reamer - amzn.to/2QGLyMV
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Uniweld Swage and Flare Kit- amzn.to/2T55jyn
Uniweld Hammer Swage kit- amzn.to/2CzWMMU
Uniweld 3/4" Hammer Swage- amzn.to/2CzXsSs
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Service Valve & Port Access:
RectorSeal Bubble Gas Leak Detector - amzn.to/2ckWACn
25 Valve Cores - amzn.to/2L37UJU
25 ¼” Brass Port Caps with rubber O-rings - amzn.to/2GIOdD2
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Locking caps - amzn.to/2GFXZ8A
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Leak Detection:
Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe
Accutrak VPE-GN Ultrasonic Leak Detector amzn.to/2Zy4IZP
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Thanks Craig for the info. I was drying with paper some condensate water from an uncapped vapor line port a few days ago. Your leak tester cap is a great idea. I will try it. Good to see you in the video again and not just hear your voice. After much listening to someone on video or radio I begin to wonder what they look like. 👍
Thanks coolramone and yes sorry about the radio face, ha ha!
Just pure genius Craig! 😀👍
Thanks a lot Stuzman!
I have used the core removal tool idea for years but i really like the idea and faster results with the cap and hole drilled in it. Excellent tips and tricks videos. Keep them coming.
Thanks a lot A-OK HVAC!
Just made mine using it already thanks Craig.
Awesome, thanks Dylan!
Brilliant, it’s a simple ideal on drilling a hole in a cap, but it’s something I have never thought of in the last 30 years of doing HVAC
Yeah its just these little things that save time and reduce possibility for contamination, thanks a lot Superior!
Now that is thinking outside the box!
Thanks Greg!
Simple yet brilliant. I could probably use the same "drill a hole" technique for shut off valve caps. They are not as universal, but 2-3 different caps would work for over 90%.
Yeah for sure for testing that would work, thanks!
I've always used spit on the fly lol
Spit on finger, put over hole, see bubble or no bubble.
Ha ha yeah the problem is locking the spit in there with the cap for the next person to connect onto, thanks!
Awesome!!
Thanks Carlos!
You are a Genius, so simple yet greatly effective. Thanks Friend
I am glad that you appreciated that video!
Very good idea! Thanks!
Thanks a lot Greg!
Nice idea. I also want to commend you on using a kneeling pad and nitrile gloves. You set a good example but I don't know if an unseasoned tech would take notice. Those are the practices that really pay off in your later years. My knees are starting to ache now that I am 50.
Absolutely, sometimes I would say to the students, work harder not smarter to see who was listening. Then I would follow it up with a lift with your back not with your legs to see who was paying attention. Then once I had everyones attention I would explain how ridiculous it is to do it a wrong way, ha ha. Thats when they retain the info!!!
Great tip
Thanks Hvac 1!
This tip is awesome!
Great tip. Thanks👍
Thanks Ron!
Nice trick.
Thanks TurboFlush!
Thanks Craig!
Thanks Chuck!
Use a stubby gauge and remove the valve core depressor also works
GENIUS! Now put a patent on that lpl
Ha ha yeah I think that one is a little too simple but I have several other ideas that I may, thanks!
This is a great video good information this tips help very mach thank sr.
Thank you very much Jose! Check out our troubleshooting articles over at www.acservicetech.com
Thank you, great topic). Tell please in future videos about safety. What gloves you using, knee pads, glasses, gloves for welding, first Aid, kit, extinguisher, respirator mask,.
Thanks for letting me know Tapch MC!
Great clip
Like it
Thanks for the visit
awesome idea man
Thanks a lot Mohamed!
Great tip 👌 thanks
Thanks a lot Eagle!
Good one.
GFM
thank you for sharing!!!!.
Glad to help!
Good idea to drill a hole in the end of a cap, thanks!
Thanks a lot 404!
I got your book. Please make video for lesson chapter 1.2.3....so on...I think you,ll sell more books.
Look up "acservicetech refrigeration cycle" to see the exact same 4 refrigeration cycles as in the book, the basic, the ac only, the heat pump in cooling, and the heat pump in ac mode, thanks!
Great idea😁
Thanks Phillip!
Great idea
Thanks a lot Blue Collar!
The core have a rubber seat, and it will eventually start leaking, it’s not a question of if, but only when. And the more you tighten it, the sooner it will start leaking. The service valve has been design to be leak proof with the caps on. For that reason, it is far more important to cary new caps, or at least new O rings to replace the gasket in the old cap. And the O ring will seat better, if you give it a little nylog. Same for the core. Bottom line: Test with the cap on!
Yeah it is certainly nice to replace the plastic caps with brass ones, and we need to replace them with locking caps if they are exposed anyway, thanks!
Should the system be on when you check for leaks?
Liked the TIP and your Channel. However, wouldn't a better solution be to require (Manufacturers) both of the Service Valve Caps be leak-proof in the first place? Why aren't they?
Cheap people buy cheap products. Many cheapos in the world.
That's what the caps are for. Which makes this tip useless honestly. If the cap doesn't have a good o-ring use nylog and forget about it. And if you're just leaving those off then leak detector bubbles are the least of your worries 🤣
Hey that was my idea I’ve been doing this for years
With the drilled caps?
Looks great I enrolled, entered code and got in one time. But am i missing something about getting back in ?? on my gal 9 phone when i go to try to get back in there is one place to hit to get in last page has enrolled ?? i can only sign up again?? looks like there may be a button at the bottom but i cant access it??? Help
Excellent 👍. BTW, if I'm a retired Engineer, is there a fast track method to getting an HVAC license in NJ? Seems like the 1 year apprenticeship is a big hurdle lobbied by existing contractor's. I want to be compliant. I've also gone through FIVE licensed contractors trying to get a mini-split working properly. It wasn't unit I worked on it myself and found horrible workmanship on all flare fittings. Thanks in advance!
David, yeah I don't think there is a work around for that. Most of the apprenticeship courses are at night and they would put you in a year 4 class but I understand where you are coming from, thanks!
Thanks for the video. it is very helpful.
One question about the drill bit for the brass cap, did you use 1/32 or 1/64 bit to drill the hole? Thanks
👍
Thanks!
Can't you just apply dope tape with cap to get a good seal if u don't want to replace valve core?
It may help if you're lucky but remember the Teflon tape for tapered threads like pipe threads. These are not tapered threads.
@@rickbraden4272 very good point.
Thanks for your reply.
Had a valve core strip out, not fun.
Too much muscle I guess.
Yeah not good!
All of this can be avoided by using nylog and a cap. Almost every Schrader core leaks
Nylog/nylock shouldn't need to be used, the Shrader valve caps have a rubber seal to 500pis+ when tightened correctly. The brass service valve caps that are tightened with a spanner are rated to 1000psi. Correct me if I'm wrong but the leak shown in the video would only leak with the cap off.
If the valve core leak is bad and if the cap holds, they are awful tight to try to get off as well do to the buildup of pressure, thanks!
Yea those rubber seals stay in for the first few times you use them then they fall out. I'm not going to replace every cap I take off so I just use nylog to be more efficient. I can't tell you how many service valve or king valve caps that leak due to bad packing and the seal is long gone. Almost no supplier stocks the OEM service valve caps or the corresponding gaskets for the caps. Nylog is compatible with every type of refrigerant and oil and it's gotten me out of a bind more than once.