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TXV Troubles Part 2- TXV Replacement

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HVAC Tech Tips

HVAC Tech Tips

Күн бұрын

Пікірлер: 54
@angelmendez2224
@angelmendez2224 2 жыл бұрын
Just wanted to say you're a great teacher, I'm learning a lot with your videos... Thank you brother.
@lip_ripper9231
@lip_ripper9231 Жыл бұрын
Glad you take all the real steps for trouble shooting. Some guys just will say they need a whole new unit lol
@wata_laf
@wata_laf Жыл бұрын
I always charge liquid through hi side when breaking vacuum. Scrolls have checks that restrict liquid from back feeding and slugging. Also, 201oz is 12.5lbs not 12lbs 5oz it’s actually 12lbs 9 oz. Good vid man… keep getting that money.
@HVACTechTips
@HVACTechTips Жыл бұрын
Thank you and Thanks for the advice. I have started breaking the vacuum through the liquid line since not long after that video. I appreciate you watching. 😃
@darandeyoe
@darandeyoe 3 жыл бұрын
Hey Josh, the refrigerant scales should be removed from the case while in use. The tabs inside the case that support it during transport will hold the weight off the scale and give you a wrong reading. You can close the case and set it on top of it for a level surface. Great videos. Looking forward to more. Thanks.
@user-hj5le6lo9w
@user-hj5le6lo9w Жыл бұрын
Good call on going with new refrigerant and filter drier. Covered all your bases to make your repair bulletproof. Solid diagnosis and solid repair! 👍🏼
@_n8787
@_n8787 3 жыл бұрын
I've been in the trade 2 years & I just found your channel, brother! I've been really enjoying the videos & have definately learned a few things already. Im also sold on those Sman gauges! Thank you!
@cmbabz4359
@cmbabz4359 3 жыл бұрын
Sman are great when they're working..
@zackb1093
@zackb1093 2 ай бұрын
I just came across your content, I am impressed with you technical skills and video content. I wish your Delta t was at least 18f everything else looks spot on
@hliz8818
@hliz8818 2 жыл бұрын
GREAT VIDEO... Feels great to understand the gauges better...just finished my hvac tech course and its all coming together..and to be able to see your real life scenarios and understand is awesome.. thanks man.. new subscriber
@jeffm2018
@jeffm2018 Ай бұрын
Great video
@rodgraff1782
@rodgraff1782 Жыл бұрын
I would have just pumped it down and changed the dryer. The problem with the TXV is probably the power head, which 90 percent of the time is the problem. I guess you don’t know who has been working on it in the past, but a new dryer one size larger would catch any contamination. All that liquid refrigerant should not have been dumped into the low side. It will make the oil foam, and cause a lack of, lubrication just like a flooded start. I always charge liquid thru the high side liquid line port, so it will flash off before it enters the compressor. That delta T across the coil is low, unless you have a ton of humidity in the building. The suction line should be 1 1/8”, for a 5 ton unit. Common mistake installers make. How much do you charge per pound for refrigerant? This is all just my opinion. Every one has their own way. Good video.
@themrmoy40
@themrmoy40 Жыл бұрын
90% of the time is the power head? how do you determine that? Also, pump it down, say what. What about if the refrigerant is contaminated because the last guy used some from his recovery tank , instead of using virgin. A larger dryer would catch any contaminants, I will try that next time.
@hugomoreno9312
@hugomoreno9312 5 ай бұрын
Should’ve charged through liquid line. Sometimes it can flood the compressor.
@terrygrant8126
@terrygrant8126 2 жыл бұрын
That was Great!....Thank you friend!
@chuckweatherford1601
@chuckweatherford1601 Жыл бұрын
GOOD JOB JOSH
@macburro
@macburro 3 ай бұрын
Thanks!
@g.a.theapostle9713
@g.a.theapostle9713 2 жыл бұрын
Great video brother thank you so much
@aamirshahzad8060
@aamirshahzad8060 3 жыл бұрын
Good video. Keep em coming
@keithmckay8746
@keithmckay8746 3 жыл бұрын
A 15 degree delta t is not good. Lol on a 73 to 75 degree day it should be more like 20 degree delta t! Especially with 410A something is off about this? Did you verify the indoor coil size matches the unit tons? The superheat is good but still seems like its underfeeding or their is an airflow issue. Like dirty coil or undersized return maybe...... I always shoot for 20 degree delta t but with a low heat load that should be easily achievable! Especially on a 5 tons unit
@jasonsherrill729
@jasonsherrill729 2 жыл бұрын
Most likely because blower motor was set to high speed.
@smacleod69
@smacleod69 2 жыл бұрын
The return is wrong and he missed it. On a 5 ton blower, its needs to be pulling in from both sides or sitting on a box pulling from the bottom. I know he has the wrong readings.
@Rccrdawgs
@Rccrdawgs 2 жыл бұрын
Or these digital guages are not...hard to trust those everytime
@rodgraff1782
@rodgraff1782 Жыл бұрын
@@smacleod69 Low air flow from the bad return will make the delta T higher. The delta T varies with how much latent heat ( humidity) is in the return air, and can vary from 16 to 26 degrees. He might have too much airflow, or a lot of humidity in the building. I wait at least 1/2 hour to let TXVs settle out.
@smacleod69
@smacleod69 Жыл бұрын
@@rodgraff1782 I don't think he had to much air flow. Reason being, if the static pressure reads high, above 1.0 inwc, which I believe it is, and that is a psc motor, the cfm would be less than 2,000 cfm, for which the 5 ton needs. The cfm maybe more like 1,700 cfm or lower. And that would cause false readings on the txv.
@jaimedpcaus1
@jaimedpcaus1 Жыл бұрын
Good job.
@endinghunger
@endinghunger 3 ай бұрын
How do you call the connector to your vacuum?
@smacleod69
@smacleod69 2 жыл бұрын
15 degree delta t is too low. Did you have to go back and add in more refrigerant? Plus, the return needs to be fixed. You might going back out on bad compressor. This wasn't well checked.
@omarhernz7453
@omarhernz7453 5 ай бұрын
Will a unit that runs r401a have a R22 txv?
@beefing313
@beefing313 2 ай бұрын
👍🏾👍🏾👍🏾
@kcomfortsystemshvac7060
@kcomfortsystemshvac7060 3 жыл бұрын
Great 👍 video,,,good ,,,,man,,,👍
@SombraLocs
@SombraLocs 3 жыл бұрын
Great video!
@natividadortiz6298
@natividadortiz6298 2 жыл бұрын
good job
@houbal7350
@houbal7350 3 жыл бұрын
nice work
@aljammal9891
@aljammal9891 2 жыл бұрын
Why did you added liquid refrigerant to low side instead of high side on startup, Thanks bro
@syedbasheer8210
@syedbasheer8210 3 жыл бұрын
Interesting 🤩
@JP-zz5rm
@JP-zz5rm 3 жыл бұрын
How long did a job like this take? Great video!
@HVACTechTips
@HVACTechTips 3 жыл бұрын
Around 3 hours total
@emeryw25
@emeryw25 2 жыл бұрын
Is it common for thermostatic expansion valve to go bad? Three techs told me the thermostatic expansion valve is stuck.
@HVACTechTips
@HVACTechTips 2 жыл бұрын
Yes.
@bradleyhayes7262
@bradleyhayes7262 2 жыл бұрын
Why did you not replace the fliter dryer
@jaybro1046
@jaybro1046 Жыл бұрын
That’s also I want to leave comments 😂
@fidelgarcia5683
@fidelgarcia5683 2 ай бұрын
He says he did but doesn’t seem like he did 🫢🤫
@HVACingMyWay
@HVACingMyWay 3 жыл бұрын
Did you charge threw the low side when weighing in the initial charge?
@HVACTechTips
@HVACTechTips 3 жыл бұрын
Yes
@TNHVACLIFE
@TNHVACLIFE 3 жыл бұрын
Does the Fieldpiece app work with the 460s
@HVACTechTips
@HVACTechTips 3 жыл бұрын
Yes if you have the job link transmitter.
@dannymcginnis2682
@dannymcginnis2682 3 жыл бұрын
what is the item called you used for the vacuum pump?
@HVACTechTips
@HVACTechTips 3 жыл бұрын
Micron gauge?
@dannymcginnis2682
@dannymcginnis2682 3 жыл бұрын
No, the item used to power the vacuum pump.
@_n8787
@_n8787 3 жыл бұрын
@@dannymcginnis2682 Im a little late but it's an Adaptor Cord. The one in the video is a Yellow Jacket & runs about 30 bucks on Amazon.
@alejandromorales8359
@alejandromorales8359 2 жыл бұрын
Great video
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