Types of HVAC/R Service Valves, How They Work, Port Access & Problems!

[@acservicetechchannel]

The Book: www.acservicetech.com/the-book The E-Book and Paperback are both is Available for Purchase at the Website! Tool List- www.amazon.com/shop/acservicetech Support the Channel- www.patreon.com/acservicetech For those that are looking for the tools used in the videos: (Linked Below) Appion Valve Core Removal Tool amzn.to/2uYr8WL 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 Brass Valve Core Tool which holds 3 valve cores - amzn.to/2GFEbm2 Valve Core Torque Wrench - amzn.to/2GHiLoD Locking Cap Universal Lock/Unlock Tool - amzn.to/2GGAoVp Locking caps - amzn.to/2GFXZ8A Ratcheting Service Wrench amzn.to/2dGV4Nh Yellow Jacket Sealright 90 Coupler- amzn.to/2LsU1V7 Yellow Jacket 1pk Compact Ball Valve- amzn.to/2uXdF18 Yellow Jacket 3pk Compact Ball Valve- amzn.to/2AiKfQe Thumb Screw Valve Core Depressor with Backseat- amzn.to/2mR0sCL UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ 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 Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe Accutrak VPE-GN Ultrasonic Leak Detector amzn.to/2Zy4IZP FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4 FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6 Ultrasonic Leak Detector with Headphones- amzn.to/2B2cRO3 Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8 QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg JB 6 CFM Vacuum Pump amzn.to/2nqbvo8 Appion Blue 3/8" to 1/4" Vacuum Hose amzn.to/2uYlVyc Appion Red 3/8" to 1/4" Vacuum Hose amzn.to/2uYg6Ro Appion Valve Core Removal Tool amzn.to/2uYr8WL Yellow Jacket 1/4" by 1/4" hose amzn.to/2umtcod CPS Vacuum Micron Gauge amzn.to/2v1nM3O Supco Vacuum Micron Gauge amzn.to/2v1JRiA RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn Magnet Jumpers- amzn.to/2PyKPQZ Alligator Jumpers- amzn.to/2PxqJXn 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 UEI DL389 Multimeter amzn.to/2xAdaJf Air Acetylene Torch setup amzn.to/2aQalsb 15% Silver Brazing Rods amzn.to/2gVLyLc Nitrogen Regulator amzn.to/2bXdR5f Nitrogen Flow Meter amzn.to/2brvoBg Other tool links can be found in the video description section. Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal- www.amazon.com/shop/acservicetech

[@gregscheyd4131]

I get more GENUINELY GOOD HVAC INFORMATION from you ..... in a very short amount of time .... than ANYBODY ELSE AROUND . THANKS A LOT FOR THAT !!!!! UR VERY SUCCINCT AND RIGHT TO THE POINT !!!!!!

[@JulesODwyer]

Craig purchased the Paperback book and I have to say that is a well put together book with tons of great info you did one hell of a great job.Spiral binder and a book with very nice size print at 63 and still in this Trade and working .Great Job

[@acservicetechchannel]

Thanks a lot Jules! I really appreciate it!

[@chriscermak3188]

Just received your book. I'm a big reader and find it to be one of the best technical books on AC i have read. You could learn everything you need to for for servicing residential AC from it. You should do one on furnaces.

[@acservicetechchannel]

Thanks a lot Chris! This 229 book took quite a bit of time, effort, and funds as you can tell. We may try doing smaller books in the future, thanks for letting me know! I am glad that you are enjoying the book!

[@texture6]

Thanks you’ve taken your channel to another level.

[@acservicetechchannel]

Thanks a lot Texture6!

[@Eddy63]

Another great teaching tool Craig ...I know the young'ens appreciate all you do ...

[@acservicetechchannel]

Thanks a lot Eddy!

[@garylargent8557]

I love your use of nylog. What I normally do is completely closed the valve and fill the inside of the valve with nylog and then reopen it to make sure I get that baby sealed

[@SovereignTroll]

Best hands-on tool reference and use resource.

[@acservicetechchannel]

Thanks a lot Ricardo!

[@briancrane7634]

Massive CREDS and Thanks for sharing these details with guys who have less experience!!

[@acservicetechchannel]

Thanks a lot Brian!

[@abdorakeebnaji1527]

Thank u s much for this nice video .i was looking all over for such information about service valve with all these details ...great job👍👍

[@acservicetechchannel]

Glad I could help

[@cssetzer]

Your videos on service valve is the best I have seen. Thanks so much. Question: I am trying to replace Schrader valve on high pressure side, but valve stem comes out only enough to leak lot of Freon if i open port. But cannot remove valve using valve removal tool and cannot get it to reinstall the schrader valve. Is there a way I can use service valve to isolate schrader valve port so I can remove it with pliers ?? There is another schrader valve on secondary access port, so I thiink it must be two way valve and unable to isolate with service valve.

[@PioloQuiboloy]

This channel is really helpful. Thanks a lot to you guys. Thumbs up

[@acservicetechchannel]

Thank you for your support!!!

[@acrepairnearme]

Brilliant video! I should see it 2016 lol Once I've almost totally frozen my finger trying to shoot off the refrigerant flow after removing the hose on the king value without Shrader inside. I didn't know those types of value. Thank you, Craig, hopefully, this great video will safe many techs

[@acservicetechchannel]

I am glad to get this video out, thanks Tapch MC!

[@eduardocastroisaac7844]

Su libro es muy bueno, lo compre el año pasado. Muy bueno. Gracias

[@acservicetechchannel]

¡Gracias por comprar mi libro!

[@whitesheatingairappliancer7101]

I received the book and it's great. Thanks for writing it.

[@acservicetechchannel]

Thanks a lot Ron and I am glad that you are enjoying it!

[@torresdelpaine8888]

I have an still new, never used/installed air source heat pump that still contains the factory pre-charge of R22 refrigerant. I have brazed the line-set and can pull a deep vacuum that will hold (down to about 175 microns) but when I remove the low side service valve cap to access the fitting to release the pre-charge refrigerant, I immediately lose my vacuum through the simple removal of the service port's cap. As a consequence, I have no way to then be able to release the pre-charge of refrigerant, without immediately losing the vacuum in order to back-seat the (hex) valve. What are you thoughts about the possibility of an extremely slow/trickle release of the pre-charge of refrigerant through the high side service valve? Basically very slow in order to create positive pressure in the refrigerant lines without a full release, and then proceeding by coating the low side valve's sidewall with Nylog Blue hoping for a proper seal while back-seating the valve fully in the hopes that it will seal the leak. Then, as a final step, I would fill the low side service valve with additional Nylog Blue and replace the service valve cap. As it stands right now, the service valve cap in place is sufficient to seal the system to maintain vacuum. Just trying to figure out a way of releasing the pre-charge with a slight vacuum leak in the o-ring gasket of my low side service valve. Saw you mentioned at 16:20 into this video about the use of Nylog Blue to seal vacuum leaks. My situation is the same, except that in my situation this is a new install still with factory pre-charge. Thoughts?

[@jimbola77]

thanks, partner for sharing I love the book!!!!

[@acservicetechchannel]

Thanks Jimbola77!

[@jonjordan6606]

I’m wondering about removing a suction line king valve on a 1/2 hp Copeland compressor, do I need a back up wrench and does this just come off by unscrew in the nut? Is it regular threads? And the Teflon ring is that something I should reuse I heard there was one in there. Thanks. If you can help I do have your book. I’m looking through that, but I can’t find the answer.

[@Anon-greyman]

Yes there is a "clever valve" inside of the coolant line

[@dannyl2598]

Thank you. You are a great teacher. I appreciate the attention you give to small details. I have learned a great deal from your videos. I'm even considering purchasing your book, even though refrigeration is not what I do for a living.

[@codykruies3414]

Thanks brother, great as always!

[@mohamedabd1776]

thanks for your explanations

[@acservicetechchannel]

So nice of you

[@Leostunzz]

Definitely buying that book

[@acservicetechchannel]

Thanks a lot Leo and I am glad to help!

[@crazeefingas33]

Hello I have a question about the king valve for the ac condenser unit and please correct me if I misunderstood but you were saying when you "front seat" the king valve, your cutting off access only to the compressor and only have access to the lines but yet how can you pump down the unit when the compressor is out of the equation? Where would the freon go? When you say "pump down" to me that tells me the freon is supposed to go into the compressor. Did you mean front seating and then putting it on the vac pump to clear out the lines as opposed to pumping it down? I'm looking at this as if I was changing out a coil only. Sorry If I got lost on this.

[@acservicetechchannel]

Ok so the king valve is used for refrigeration and is found on the side or top of a receiver tank. If you are talking an air conditioner with the three position service valve, thats different. You may want to check these videos out- kzbin.info/www/bejne/b5mxaKhunrlrrKs kzbin.info/www/bejne/jZ2thYxtatSGp6c kzbin.info/www/bejne/qZ-qmIKNn8uWiMU

[@andrew9194]

I think you mean the 3 position valve for ac and heat pump. I was confused on this one as well for a bit, but I believe he meant front seat as the final pump down step, so that the refrigerant does not go back through the vapor line, towards the evaporator.

[@ricardov8249]

Will be purchasing book, always good to have more resources, are you gonna make a refrigeration version for mid temp and low temp guys? Great vids brother

[@acservicetechchannel]

This one took quite a bit of time and resources. We will see likely make some smaller ones since this was 229 pages, thanks Ricardo!

[@dustindavis749]

When you have to hook up gaugea and need to get a presaure reading from the coreless shrader port on a three position valve can I just put it in the midseated position instead of the 180 degree turn position so its easier to remember, is there any difference in checking the pressure if its mid seated or turned 180 degrees from the bqckseated position?

[@kennethjohnson359]

Great vids I as well purchased the paperback can’t wait to receive and check it out.

[@acservicetechchannel]

Thanks a lot Kenneth! I am excited to hear what you think of it!

[@vhj5803]

great video once again!! . thanks so much

[@acservicetechchannel]

Thanks a lot Vincent!

[@mauroaparicio1855]

thank you for sharing the information

[@cristianrozadilla2783]

exelente esplicacion!!!!! los puertos que tienen continuidad con la succion o la alta del compresor,, son para los presostatos

[@acservicetechchannel]

Thank you!

[@acestu]

Thanks Craig

[@acservicetechchannel]

Thanks a lot Stuart!

[@bobrub]

Hi Craig, If I get the paperback version is the download version also included at the higher $49 price or some discounted price?

[@acservicetechchannel]

Hey Bobrub, the $49.99 plus shipping is for the paperback only. This is due to the high cost of production with 229 pages, color images and spiral bound. Send me an email if you were looking to purchase both, thanks! [e-mail]

[@mayson1919]

Hey Craig, do you have any videos relating to Headmaster controls. ORI'S, ORD'S, OROA'S and maybe on CPR'S and EPR'S?

[@acservicetechchannel]

Not at this time. Thanks for letting me know what you would like to see!

[@RJMaker]

Great Video, Thanks

[@acservicetechchannel]

Thanks RJ Make!

[@aquillae]

Thank you 🙏

[@rashpalsingh2905]

Hi sir how to repair or services of this spandel value

[@throttlebottle5906]

back-seating and blowing the breaking the snap ring/grrove want the main issue.... the issue is RUBBER o-rings and lack of ones that are good quality ( ROHS etc etc etc etc)

[@acservicetechchannel]

That would be very bad for sure, thanks throttle bottle!

[@throttlebottle5906]

wow, I need lessons in proofreading and to pay attention before posting.... I wont bother to edit the typo's and brokenness..

[@jeffwang2012]

Hi,one question: how i can buy the book from Canada? will u sale them on amazon.ca? thanks!

[@acservicetechchannel]

Hey Jeff, we have a shipping calculator at our website at acservicetech.com in the cart checkout. We already sold and shipped quite a few books to Canada since the release of the paperback 11 days ago! If you have any questions just ask at [e-mail] thanks!

[@jeffwang2012]

@@acservicetechchannel Thanks! I'll go to e-book, it's much easier for purchase!

[@acservicetechchannel]

Sounds good, thanks!

[@whit6282]

Does anyone have any experience with 1/2 service ports for mini splits?

[@Fordo11789]

My issue w your channel is that it’s mostly or only really made for residential

[@robertwolff3667]

I think you missed one type

[@fatehhammouda3756]

Hello everybody i need a job

[@acservicetechchannel]

Just keep at it and show up in person with your resume, keep knocking and a door will open, don't give up, thanks!

[@fatehhammouda3756]

@@acservicetechchannel thank you my brother