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Replacing a TXV That Was Locked Down!

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In this video I return to a call where the TXV was completely locked down! #hvacguy #hvaclife #hvac #hvactrainingvideos #airconditioner #heatpump #furnace #hvactroubleshooting #hvacinstall #hvactechnician ‪@ruud‬
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Опубликовано:

15 авг 2024

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Комментарии : 75

@greatbiggiesize3644 Год назад

Comment Part 2 When you do multi-part calls/vids, LOVE that your now adding links, you should also label them Parts 1 & 2 (and use similiar naming structure). Makes them easier to find. THANKS!!

@j-randall2972 Год назад

I’m sure that Dewalt cordless fan helps a little in that attic. I work in a factory, some air blowing is better than no air.

@kens.3729 Год назад

Outdoor Unit looked really Clean and Newer. 👍

@repairit333 Год назад

First, i like very much your videos and how you try to explain everything. Although i think and i stress "I think." You could have jumped from the high side to the low side at the service valves. Less loss of refrigerant. I don't claim to know all . Just a thought. Thanks for the good job. Did you or could you do a tour of your tool bag a what works for you. Thanks Delawareman

@truehelp63 Год назад

Jeez, I am suprised you made it out of that attic. Good job.

@franciscoflores2718 Год назад

Wow talk about a lock down!! The pressure held in the liquid line! 😮 hVAC always never fails to amaze me

@billybrown1979 Год назад

do the job right and the job will be right. two rights does not make a wrong, be bless and safe, 7/2/2023 4:40 pm central time

@stevencossaboon3237 Год назад

Nice work as always Curtis.

@gabrielstern4992 Год назад

Nice job Curtis and I see you used a press fitting and tool again. And I am sure it was a joy not to spend all that time running nitrogen and brazing. And once again having a happy customer. I need to look at your video again to study on how to get all the refrigerant cycled back into the compressor as it looked like you closed off the high pressure side valve to allow the gas state refrigerant to enter the compressor but not be able to leave the condenser in a liquid state. I am studying up so maybe one day I can get an hvac cert just to work on my own stuff but do it correctly. And just cycling back the refrigerant back into the condensing unit is sure a good way to save refrigerant and charging costs and then just vacaum out the system and charge it as needed.

@jthonn Год назад

Years ago, maybe they still do I don't know, but you could buy a condenser with the refrigerant in it. It stores it in the accumulator. So he did the same thing, so you don't have to go through the whole recovery bit.

@jthonn Год назад

Always a good feeling when you diagnose something, do the repair and get up and running. I was interested in what they used to go from copper to aluminum on that evaporator, it was taped up, right passed the TXV. Nice work

@charlesmiljus7609 Год назад

ive seen cpper to aluminum on the condensing coils where the aluminum was swaged then they soldered them together

@jthonn Год назад

@@charlesmiljus7609 I was thinking some sort of flare or compression fitting, I didn't think you could braze copper to aluminum, but what do I know. I'm sure it's been done, swaged and brazed, thanks.

@topher8634 Год назад

There's a kit a the parts house I've used once to repair a leak on a trane coil. You slid the copper and aluminum together in the "coupling" then heated it with a propane torch. I thought for sure it would leak but it never did and was still tight until I replaced it 5 years later.

@jthonn Год назад

@@topher8634 good to know, thanks

@butlerstouchHVAC Год назад

goodmorning tech, great clean work 👌🏽

@butlerstouchHVAC Год назад

can someone explain to me what a txv lockdown mean? Stucked closed?

@HVACGUY Год назад

@@butlerstouchHVACyes

@butlerstouchHVAC Год назад

@@HVACGUY thank you

@kg4muc Год назад

That TXV was locked about as tight as it gets! At least you didn’t have to endure a storm to do this one! They have been all around me today but we’ve dodged the bullet and it made 78 degrees today Looks like summer might be here

@DJV94022 Год назад

When that happen you either use pb blaster if rusted or...take advantage that you have torches heat it up a bit and throw ice cold water on it and itll loose it self..thats what you do in the automotive industry with chassis bolts..now if you do that the engine then you chance of putting a nice crack on the bloxk or head cause of the temp dif

@chuckquinn8026 Год назад

Another dryer vent behind the condenser 🤦🏻‍♂️🤦🏻‍♂️🤦🏻‍♂️ Gotta say my anxiety climbs watching you change out TXV’s as they are so fragile and things can go wrong fast

@shafiqshaikh5224 Год назад

Boos very good job I'm interested very good

@jeremyjenningsjjj Год назад

i have had 2 coils that the txv were stuck closed from the factory both American Standard

@gainestruk1 Год назад

I don't know why more techs put the dryer like this one, it sure makes it easer to change 👌

@jthonn Год назад

I think a lot of the units come brand new with the dryer inside. Anything they can do to make it a little more difficult to service.

@edwardgarza5104 Год назад

Yes it's easier to change , reason why some install near the indoor coil is so they don't rust out. But if your careful to not burn the paint around the filter should be fine outside

@jthonn Год назад

@@edwardgarza5104 I know you are right, but I have seen them rust mammy and not leaking.

@maintenanceman1015 Год назад

Maybe a soap test at dryer fittings.

@frankblankenship3026 Год назад

Hey Curtis excellent instructional video, and thanks for the video on how the press tool works, now I know I need to purchase the the press tool with the shorter shank if it does the same job. Happy 4th from Dothan Al.

@m9ovich785 Год назад

Are You gonna rip the old TXV apart to find out why it failed ??

@gabrielstern4992 Год назад

Thanks Curtis watched again so lock down high side first like I thought except my unit has a Allen key hex style let refrigerant cycle back in until you here a clattering clunking sound then slowly close low side line or gas state refegerent side. Then proceed except my unit also has the allen key hex ports on the high and low side on the air handler too. So wondering if the high side on the air handler would have to be closed too first just like the condenser.

@HVACGUY Год назад

Most air handlers don’t have valves to close

@gabrielstern4992 Год назад

@@HVACGUY mine does for some reason as it came precharged also with refrigerant in addition to the condenser it can handle up to a 100 ft lineset precharged. Without needing additional refrigerant. Thats why the alan key valves were on the air handler in addition to the condenser. As it requires opening the valves on the air handler in addition to the condenser. To release the refrigerant so both work properly. But thanks watching you do the condenser procedure was real helpful too bad you are in Georgia and not Pennsylvania. As I would hire you in a second. To do my work I need done. Which is a lot to correct another hvac companies horrible install and replacing another older Armstrong Lennox package in wall unit from 1990 that was a split hear pump with a horrible way undersized comfort pac that was not even a true heat pump system. As the correct exact replacement would have been the Lennox magic pac 3 ton unit. But I decided, I don't even like them and I am going side discharge inverter for the condenser. And a real spit. But how the hell can an hvac professional undersize a unit. 1200 square feet to 1500 square feet is 3 tons. Especially for cooling. Not 1 and a half tons. For a heat pump application And how the hell can you not figure out on a multi floor condo a open return sucking into a closet space is not adaquite either. And you need at least one proper sized return for the upstairs. Anyway I am figuring it out myself and intend to have a competent contractor like yourself do all this for me the right way but it is going to cost 10 grand just to have the ductwork redone and have everything installed correctly and to my satisfaction. None of this hurry up a do a horrible hack job and charge 10 grand that's wrong. Your customer are lucky they have you. To do such good work for them.

@jamesfitzsimmons381 Год назад

Pro job

@user-qr7df2pe9u Год назад

Nice work as always Curtis.. Maybe a soap test at dryer fittings..

@stephenbullock-yn3vh Год назад

Do you think this one failed because of cap bulb leaked the refrigerant out causing to lock down or the pintle stem seized?

@leahciM_silliW Год назад

Very instructional video, Curtis. When you were using the compressor to pump down the vapor side of the lineset, how did you know when to close the vapor side service valve and stop the compressor? I'm assuming it's based on the sound of the compressor starving.

@HVACGUY Год назад

Yes, exactly

@rjm7168 Год назад

Have you tried Harris Stay-Brite solder? I really like it.

@DC-do8vd Год назад

Hey Curtis, where do you purchase your bulk pack of Schrader core valves? Thanks.

@HVACGUY Год назад

United Refrigeration

@davidaustin9009 11 месяцев назад

Question..why don't you solder out and solder in the new filter dryer. Instead of cutting it out?? Cuz now you have to swage the line and parts?? Just curious as a new tech??

@brandont9015 Год назад

Why can’t I find the van tour video for you NEW VAN ???

@OnusBones Год назад

Around 19:00, do you ever consider using any kind of thermal compound between the sensor and the line, or is that utterly unnecessary? There was a lot in this one; I enjoyed it.

@HVACGUY Год назад

It may help.

@harrydickson4575 Год назад

👍👍👍

@jeffhagberg6796 Год назад

In this heat I bet the home owner is a happy camper ! Does a TXV usually last the life of the heat pump?

@mikemarshall1394 Год назад

Curtis did you account for the oil loss when you removed the TXV.

@th-wt5pn Год назад

How did u pump down without a gauge showing how low the psi was? I know u have alot of experience lol

@gainestruk1 Год назад

If you listen as the refrigerant pumps down the compressor starts making chattering sound when its all in the compressor.

@forestpassineau Год назад

@@gainestruk1but it wasn't since all stopped up in the high side before the txv. Should have recovered from the high side instead since lots of refrigerant escaped trapped before the txv.

@bill944 Год назад

@@forestpassineau He did a pump down not a recovery.

@Balticblue93 Год назад

You cannot properly pump down a system without at least one gauge, usually a compound gauge to know when it is empty. Listening to the sound of the compressor making a chattering noise is NOT an approved method by any standards. That is exactly why he had pressure in the line when he was removing the TEV. Noticed how the video editing cut out and came back to after the venting of the refrigerant? The amount was far more then "de minimis" venting because the pump down was not done correctly. Notice the compressor was not making crazy noises like it is about to explode, that is why you use a refrigerant recovery machine through a filter drier or pump it down properly with a gauge attached to know where your level is. He should have recovered from the high side. But a recovery through a filter drier would have been "best practices".

@leahciM_silliW Год назад

@Balticblue93 When are you going to post some of your work?

@ShiYushi Год назад

How Do I know if the txv was lock down? You mean getting stuck right?

@bill944 Год назад

Low side pressure/temperature will generally be sub freezing and adding refrigerant will not get it above freezing or allow any increase in the pressure reading. Also, you can hold the txv sensing bulb and the low side pressure should rise, if the txv has failed the pressure will not rise.

@franciscoflores2718 Год назад

If your liquid line pressures are going up to like 500psi. This would also tell you if the piston was clogged. But the TXV can also be back if your superheat is fluctuating.

@karellodewijks4971 Год назад

👍👍😊😊

@oshe5871 Год назад

What purpose does aTXV serve?

@5822huron Год назад

Why would you want the drier outside????

@garyjohnson5540 Год назад

My guess is that's 150 degree attic.

@JS-8204 Год назад

do you leave the blower on purposely?

@111000100101001 Год назад

It helps adding heat to the coil by running blower then the compressor can easily pump down and you a pull a good vac when finished.

@user-cr4fs8dr5y Год назад

Flip your wrench around please lol

@mikedillon6233 Год назад

I'm curious for the guys in the know. what Causes these Txv valves to fail?

@leahciM_silliW Год назад

I would surmise a plugged capiliary line to the sensing bulb, plugged capiliary to the equalization line, or a failed diaphragm. I believe the spring design on these valves are for the valve to fail in the closed position (i.e. no refrigerant going to coil) What does everyone else think?

@MariosACandRefrigeration Год назад

on that txv it lost the charge ,when he cut it nothing came out,on some systems they forget to install the strainer,when the solder the 3/8 line,and pluggs up some techs heat the bulb on accident and loose the charge on install and say the valve was defective,but most of the time the bellows losses charge by age or rust.

@MariosACandRefrigeration Год назад

3 min in and pumping down with no gauges and txv closed,makes no sense.

@MariosACandRefrigeration Год назад

borrando las cosas no van aprender.

@HVACGUY Год назад

Borrando qué?

@MariosACandRefrigeration Год назад

@@HVACGUY puedes recuperar el luiqido de la alta con los manomertos,purgalos y conecta la linea amarilla al centro y abre las dos valvulas,y puedes recuperar todo el refrigerante,gracias por los videos,yo tambien aprendo de ti.

@HVACGUY Год назад

@@MariosACandRefrigerationno era mucho. Pero tienes un buen punto.