Replacing TXV With Piston While Changing a Coil. Schrader Tore Apart When Removed
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- Опубликовано: 4 окт 2024
- In this video I change an evaporator coil in a Goodman Air Handler. I removed the TXV, and used the piston that came with the coil. Plus, I had multiple difficulties pulling a vacuum. #hvactech #hvac #hvaclife #fieldpiece #makita #hvacguy #goodman #hvacrepair
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Always thumbs up the video before I even watch it. That’s how much you’ve taught me. Thanks for the videos.
I used to hate your videos but I'm starting to like them.
Thank Goodness for Goodman !
I’m sure you’ve listened to some crazy conversations over the years just for doing your job haha
I realize a lot of people hate a TXV because they can be problematic. But they are much more efficient than a piston. Why didn’t you replace the TXV with another new TXV? That shrader valve breaking is a bummer.
Just keeping it simple. I had already pulled my vacuum, a was putting in the schraders back in, and couldn’t.
@@HVACGUY did you let the home owner know it's not going to be as efficient? A company here in my area got sued by the homeowner for making his system less efficient. Also what about the federal tax rebate for a system being a certain efficiency, would changing the efficiency cause legal trouble from the government? I've always been kinda scared to do that.
Sometimes you jus gotta do whatcha gotta do, he probably informed the client and everything, sometimes the customer just wants it to work and doesn’t care, whatever is cheaper for em lol
You are the man Curtis
I would prefer a TXV because with a piston the refrigerant is fixed going to the evaporator so if you have enough refrigerant in the system to cool the entire evaporator under high heat loads including latent heat [water in the air/humidity] then after the heat load drops and without an accumulator you can send liquid back to the compressor. So you have to put less refrigerant in the system so that doesn't happen under low heat loads but then when the heat load is high the entire evaporator won't get cold. With a TXV you add enough refrigerant to keep the evaporator cold under high heat load but then as the load drops the TXV automatically closes so liquid refrigerant doesn't get sent back to the compressor... Hence a TXV is more efficient, it provides maximum cooling capacity under different conditions.
Respectable video, a question, does welding in the presence of nitrogen occur? I would appreciate any information you can provide on this subject.
nice work
I 'm not so sure about working for people that call the authorities on me, you know what mean? They either want you to work for free or get you in trouble. Good job Curtis.
She is an elderly tenant, at a complex for elders hat don’t need much care.
Great video. I learned something
Just wondering why you left the horizonal drain pan in the A/H.
The lower panel had a knockout missing. The pan had closed drain plugs and an oring that closed off that orifice.
I appreciate your jedi like tech skills HVAC Guy and the content. I do have a question regarding the schrader adapter you used? I have had a schrader core break on a Goodman/ Amana condenser in the past. I over tightened and could not remove which resulted in me replacing whole service valve. Where did you find that female thread to 1/4" schrader? That is something I want to stock in the van
Got it at united refrigeration. I don’t think it had a depressor in it though, just a schrader on the end.
Thanks v much King! I reckon Johnstone should start carrying them too. I'll give it a try and grab that fitting asap
What are those incredible pliers?
Those are the icon pliers/wrench from harbor freight. They are knock offs of a similar knipex model, but very well made
Great videos buddy! What kind of plowers are those you use? Are they locking? Keep making the videos I really enjoy them! Bullet Bob. From Texas!🤠🤠😀😀😀👍👍👍❤️
Those are knockoffs of the knipex pliers/wrench. Sold at harbor freight. They have been a nice add.
But how do we look for them? Name?
@@rolytech212 icon pliers/wrench
@@HVACGUY thanks
Knipex is best though. Yeah a little pricey, but you can feel the quality.
How well are these aluminum coils holding up, my r22 system will eventually, maybe soon, need to be replaced and I'm trying to educate myself.
Thanks! ;)
Stay away from Goodman.... JUNK old coils and new coils.
@@superdan9er Aluminum seems very prone to corrosion but certain alloys are quite good. Not good if very thin and chinsey.
@@thisisyourcaptainspeaking2259
Doesn't help that they buy Chinese metals that have other materials in them.
Or how about the coils that the front of the coil is copper and the back is aluminum.
Hmmmm where is that coil going to leak. Lol
@@superdan9er I'm convinced the aluminum is recycled beer cans, which explains why the "brazed" disimilar joints corrode right away and the alloy can be made thinner than notebook paper.
None of the aluminum coils looked that bad and they all leak? My copper looks terrible but doesn't leak and its been in my unit since 1993.
Sometimes you get the bear 🐻 Sometimes the bear 🐻 gets you.
Thanks again for the videos!
🍺🍺🍺🥃🥃⛳🎳
Stay safe.
Retired (werk'n)keyboard super tech. Wear your safety glasses!
What's the benefit of converting from txv to piston?
Less likely to cause a problem
It cuts the efficiency about 1.5 seer. I've never had any real issues with txvs. I've got plenty I've installed 20 plus years ago that's still working fine. However I do absolutely 100 percent make sure no lines from the txv, or anywhere else for that matter, are rubbing on brand new installs.
I see you used a squeeze type tube expander. I has seen a few bad reviews about it. How do you like it?
It isn’t high tech but works. You need to learn how to be easy with it - little here, little there. It can split a pipe, or create a non circular opening if not use properly. Honestly though I’m thinking of buying the spin bits. I’ve seen them in action, and they look nice.
I just worked on a eev. I want to replace it with a txv so badly.
learn to be a part of the future. eev's are the future, get with it. its HVAC, shit will change every couple years. if you want to be stuck in the past: become a GM mechanic. hell, you are in HVAc, you are already more of an electrican than most electricans. that is basically what we are these days, electricans with blowtorches.
@@SupremeRuleroftheWorld yeah yeah yeah. I ordered a new EEV. Please spare me. EEV's are a nightmare for service. They just are more problematic compared to mechanical valves. Changing the EEV is the easy route, it just takes 5x as long due to supply chain and more time diagnosing electronics. Also long live the txv. Its not gonna die anytime soon, trust that.
@@ryanmalin in the US prehaos. In the rest of the world the eev is the defacto standard for even the most basic units for more than a decade. Every hvac service engineer learns with eevs and txvs are more theory in classes as basically every machine that still has them is written off as soon as something major happens and its replaced by modern stuff. You can keep complaining about it or learn to embrace it and charge accordingly if you can service and diagnose eevs and fvds properly. With the negative nancy attitude a LOT of lazy engineers have towards eevs there is a wide open market for the ones that can and will work with them and keep equipment up to code and effecient to save the customer money, wich is why they have the modern stuff in the furst place. Its not about you, its about the customer.
@@SupremeRuleroftheWorld regardless if it's the standard that doesn't take away from the fact that eevs are trash from a service perspective. Engineers need something to do, right? Let's reinvent a valve that has been available for over 100 years and make it less reliable! Great idea!
Also LOL "keep the equipment up to code"? You have an inspector that inspects previously passed equipment in your neck of the woods?
If it ain't broke don't fix it. Eevs are a solution to a problem that was already solved.
@@SupremeRuleroftheWorld You seem angry.
Not so… easy with TRANE or carrier units.
Hope… all make same fittings like this.
On systems with the dryer on inside of the condenser I usually cut out the dryer and straight pipe in that area and then move the dryer to the inside by the indoor coil. Makes it a lot easier if dryer needs to be changed in future or if there are future repairs. In your case though with that tight ass closet, I would have just moved the dryer to the outside by the condenser.
I agree done the same . Inside dryer tend to collect oil and then problems on pressures. I don't understand why would they put it inside condensers. No good.
Why didn’t you just leave the drain pan out …Not needed !!!
Txv coil’s need pistons
I defiantly agree that a piston is the way to go.