Air Conditioner Metering Devices Simplified. TXV VS PISTON. Which is better?

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Күн бұрын

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Пікірлер: 51

@werquantum Жыл бұрын

Always straightforward and simple explanations. Thank you.

@hitekrednek66 Жыл бұрын

Thank you sir for the explanation of these two metering devices. I know for me these are uncharted territory. I know they both exist and that piston has been around for a while but don't fully understand how they work. Your hard and fast explanation helped me and am looking forward to next vid! Thanks!

@diyhvacguy Жыл бұрын

Thanks so much! Maybe I’ll do a more detailed one at some point. Cheers

@davidmaz6379 6 күн бұрын

I Very Much Appreciate Your Detailed Explanation Re: TXV Vs Piston. I am Installing a New Goodman and Was Not Certain if You Need Both the Piston And the TXV. Your Explanation makes Clear it is One Or the Other. Thank You for the Time

@acmm50 Ай бұрын

Great description and comparison of benefits vs reliability with long term operation

@dukati3499 Жыл бұрын

Thanks again, Brother 🙏🏻 God bless you

@ranger178 Жыл бұрын

i am glad i went with simple system it has run trouble free for 23 years

@FernandoPerez-yy7wl Жыл бұрын

U hit the nail in the coffin on this.

@lahoucinelamlih3214 10 күн бұрын

You're amazing bro

@joeatx4564 Жыл бұрын

Thanks bro good video

@gerardosegobia4050 Ай бұрын

Good video my man

@KROX_EDITZ17 Жыл бұрын

Thanks good information

@MattJonesYT Жыл бұрын

Also, even if the answer to the question about doing it without brazing is "no" it is still a good snippet to capture and explain why not. The existing competition for that snippet is just links to product manufactures so those are much more biased results. The search engines would prefer to get results for those search terms from more independent sources which means it's a snippet you can rank for even with a new site.

@billbaber6653 Жыл бұрын

Like it thanks, this is my hobby.

@werquantum Жыл бұрын

Mine, too! The more I watch these videos, the better it gets. I love understanding how the systems in my house work. I’ve got a 25 year old heat pump that I keep maintained-and these videos help me do it myself.

@tysonrojas5477 11 ай бұрын

There are two different types of expansion valves adjustable ,non adjustable u can adjust your swing on your expansion valve if u add a pressure port at exapnsion valve so adjustables are more for energy efficiency to meet certain seer ratings in my honest opinion id just use an orfice it get as cold as its going to get with and expansion valve if not colder 100 percent of time ,with a well insulatated home the compressor run time will be less and last longer than with expansion systems plus one lesss part that can go bad 😅 this is from my experience being the the industry for 12 years plus in so cal i do industrial refrigeration and air conditioning i started my first 7 as a residential ac tech and ran a service department so i encountered all types of issues and complaints ❤❤❤❤❤😢

@MrBlinchikON 20 күн бұрын

Yes and no. You know if compressor is running properly there’s nothing wrong with it.. like he mentioned- running without stress. Plus a better humidity control. This is a dilemma for me now. I have a piston system and I have txv. Don’t know which direction to go

@markmohebi 8 күн бұрын

What about if txv and piston are both installed in the same unit??? Please answer

@ronie1337 Ай бұрын

Hi Dave, correct me if i'm wrong. Most (99.9) TXV's are Hard Shut Off TXV's. If using a scroll compressor you're ok. However, if used with a reciprocating compressors you must install a Hard Start Kit at the condenser.

@skipper3069 Жыл бұрын

Awesome video all the time. I have a question R22 condenser transitioning to 410a. same r22 evaporator do i need to install txv or piston is okay.

@diyhvacguy Жыл бұрын

You actually need to replace the coil all together. R22 coils are not designed to handle 410a pressures unless it says it’s compatible with both. If it is compatible or you are replacing it with a new one, and it’s not in a space that is close to living area or sleeping areas, I’d do a piston. When you are close, the refrigerant passing through sounds like water running and can be noisy if it’s close to where you are hanging out or sleeping. 👍🏼 piston is more reliable, txv is supposed to be more efficient.

@ronie1337 Ай бұрын

@@diyhvacguy Interesting!

@robertcaparelli3535 Жыл бұрын

gotta use hard start with txv and that sometimes makes start up louder

@mel904 Жыл бұрын

How do I adjust my valve to make my air colder? That’s what I need to know. It gets hot here in Florida. I was also told I could convert my old Freon unit to the new Freon and save money.

@diyhvacguy Жыл бұрын

You can definitely check out some other videos on the adjustment, there’s typically a cap at the bottom and you will adjust it as you are measuring the subcooling. I will try and create a video soon that explains this in detail.

@diyhvacguy Жыл бұрын

It’s kind of rare that they will be out of adjustment, and some actually don’t have any adjustment and just need replaced. If it’s an older system, I’ve seen many that are working as they should but either they were not sized properly and as they got older they just can’t keep up, or they were sized properly and are just extremely inefficient due to age.

@n3rdstrength 8 ай бұрын

Thanks for the video. We get bi annual checkups on our now 5 year old system. Local HVAC company recommends an upgrade and wants to charge me $2,000 to go from a piston to the TXV which seems ludacris to me. Any thoughts?

@diyhvacguy 8 ай бұрын

Yes that is ridiculous. Stick with your piston if it’s working fine

@ronie1337 Ай бұрын

@@diyhvacguy If it ain't broke, don't fix it.

@moxysoft Жыл бұрын

How do you test a TXV? I had a pro come out and said nothing was getting through and wanted to replace my entire system!! I know TXV's can be expensive but can't I just put in the that valve and bypass the TXV? Thanks Really enjoy your channel 🙂

@diyhvacguy Жыл бұрын

Yes you can remove the txv and install a piston which is much simpler. If you need some help with this, check out our membership at Patreon.com/diyhvacguy where we give you one on one help with repairs such as these. Cheers

@moxysoft Жыл бұрын

@@diyhvacguy will be signing up!!! thank you

@rich13la1 Жыл бұрын

Question; can you use either a TXV or piston ? Or does the evap design dictate one over the other.

@diyhvacguy Жыл бұрын

Yes you can use either. All Goodman condensing units will come with a fixed orifice piston in a little baggy stuck to the side of the unit. All Goodman Evap coils come with a fixed orifice piston in them, but I always use the piston that came with the condensing unit. It comes with a piston removal tool (little skinny metal pin with a 180turn at the end of it) so you can remove the one that comes in it and put the one that came with the condenser. On a side note, if you are thinking of doing the replacement yourself, I’m going to be doing some videos on the use of mapp gas and stay brite 8 solder for the lineset. With this method, there is no need for a nitrogen flow due to less heat being needed, and a way lower price point then having to purchase oxygen and acetylene torch and tanks. Even from the hvac contractor perspective, it looks like a far more efficient and cost effective way to connect copper lines. Anyways, stay tuned for that! Cheers

@tysonrojas5477 11 ай бұрын

Some times it's in there lmao 🤣

@arnaldorivera546 Жыл бұрын

Hi I'm replacing my A/C unit I have a 2 ton the one I'm trying to get is a 3 ton the high line for the 2 ton is 3/4 the 3 ton is 7/8 Can I use an adapter ore I have to replace the all the copper lines

@BrickScholar Жыл бұрын

You will have high oil velocity and higher head pressure, it is not good for your compressor in the long run. Best to just start over with a new lineset. If you must do it, you can use a reducing fitting.

@ranger178 Жыл бұрын

just go for 2 1/2 ton it is less filing and tastes great LOL

@MattJonesYT Жыл бұрын

KZfaq deleted one of my comments for some reason so I'll try it again... while watching the AC install vid a question I had was if it's possible to install it without brazing. That is a snippet question that you can rank for pretty easily

@diyhvacguy Жыл бұрын

I’m always looking for those video ideas so keep them coming! I’m going to be doing a video soon on using mapp gas and stay brite 8 so you don’t need to have nitrogen in the lines because it is waaay less heat, and supposedly it’s stronger. AND no expensive oxy acetylene tanks needed. Perfect for the average DIYer. The only other option is the RLS or Zoomlock hvac crimp fittings but the tool to crimp them is super expensive. Not ideal for a DIYer.

@MattJonesYT Жыл бұрын

@@diyhvacguy Even if the other tools are not realistic for DIY it is still a good source of content because that's what the question in the viewers' minds was. Most of the channels I follow were after searching on a question and they said not to do whatever I was looking for. It adds credibility. Also, it might be worth researching what it costs to rent expensive items like zoomlock and so forth.

@timwilliams8518 21 күн бұрын

How much more energy efficient are TXV's over pistons? Are we talking a few dollars a month or tens of dollars per month?

@major_mik3715 Жыл бұрын

My home was built in 2016 and today, my neighbor had a tech come out to service his AC and noticed that there was a bag attached to his unit with a part (the piston) in it. Mine is the same way. Is this part important?

@diyhvacguy Жыл бұрын

No, if your unit has a TXV, thermal expansion valve, then that piston was not needed during installation. A lot of guys leave them stuck to the unit. So no reason for alarm 👍🏼

@diyhvacguy Жыл бұрын

There are two types of metering devices, txv’s and piston. Each condenser comes with a piston, so the installer just left it on the side of the unit instead of taking it off and throwing it away is all

@major_mik3715 Жыл бұрын

@@diyhvacguy Oh, ok. Thank you.

@NATHANFREDERICK-rs7yb Ай бұрын

This has to go down as one of the dumbest videos I've ever seen.... I've been doing this since approximately 1995 and have never seen a homeowner change ATX. Why would you even encourage the untrained public to do this???????

@diyhvacguy Ай бұрын

You should get out from the rock you’ve been under more often 👍🏼

@MattJonesYT Жыл бұрын

You should also start a blog that has a text version of these videos and put the covers the material in SEO-friendly snippets like kzfaq.info/get/bejne/nsBmm7eep5m6f2Q.html That will help get more people to the youtube channel and if your snippets are capturing keywords no one else has ranked for then you'll get a visitor boost even without any back links

@diyhvacguy Жыл бұрын

Could you tell me what I’d need to do to start a blog? I’ve never done that before. But it would be great for affiliate marketing as well as getting more views on KZfaq. Thanks Matt

@werquantum Жыл бұрын

@@diyhvacguy I’d KZfaq it! Just like we learn from your vids, you can do same. Peace.