Відео

13:38 does it need that much power to run how much power does it need to run fully?

It shut off for 2 seconds and went on again or went into reverse

Honestly it would been nice if you could given a tutorial explanation in this operation and what the parts are actually doing for us Dummies 101. Thanks.

How did you size your txv and cap tubes did trane give you this ? How can i get this for any unit or unit im working on different tonnage and acutra tubes i have 25 ton trane with 16 orifices.

This was so insane and cool

This is called ratcheting. It's the noise the scrolls make when they separate during shut down. It is normal for the system not to make this noise but slowly develop it and will not affect the performance or longevity of the equipment. Super common on any scroll compressor regardless of equipment manufacture.

Sounds just like a lawn mower engine.

There's something about the sound of the old turquois 06s, v/ the newer gray ones...the aluminum pistons just don't have the sound of the old ones did, NOR do they put up with slugging

Professor Al-Aziziyah, the reasons for the weariness of the mechanical part

A Huge THANK YOU! to you sir! I was testing a new micron gauge and one i already had both directly connected to the vacuum pump using a tee. The rise in microns after isolating was driving me insane. Last time i used my old micron gauge it worked fine on an ac system but now it seemed to be acting up. You saved me a lot of further fustration. Again THANK YOU!

This is cool! Thanks!

great video. thanks for sharing.

very educative. Thank you

backflow, obviously

I just realized your an ammonia mechanic. I realize there are state licensing requirements but are there paths to learn what I need to know to get there?

Hey! New Sub onboard. I love people who dig deep!

Ammonia can burn you blind you be careful

saved me a couple hundred bucks. Thanks!

THAT PLANT LOOKS LIKE IT COULD USE HELP, LOTS OF OPPORTUNITIES FOR IMPROVEMENT

Newer scroll compressors have a discharge port check valve just behind the discharge port. This was added because of customer complaints of back wash shutdown noise. A lot of techs don't wrap a wet cloth or heat dampening putty around the ports when they braze in a new compressor and if the check valve receives too much heat it can warp it making it not close properly. It is more important on high SEER units with large condensers that hold a larger refrigerant load. The subcooling level is a percentage of condenser volume that is liquid refrigerant. Larger condenser means more liquid refrigerant in condenser when it shuts off. Copeland specs specify a maximum system refrigerant load to avoid off cycle flood back due to larger refrigerant loads. Unit manufacturers get around this by closing down expansion valve and relying on compressor check valve to trap liquid in condenser during off cycle, preventing low side flood back through evaporator. On these units you will notice the high side pressure does not drop off after unit shuts off (unless it has a leaky check valve). All scrolls have a floating differential pressure plate in the middle of top fixed scroll plate. It drops down during off state to unload compressor so when it starts up again it is not initially pushing against system high side pressure. Copeland says their scroll compressor's don't need a short-cycle timer due to differential pressure plate, but there is another issue with a less than half second power glitch that can cause a scroll to immediately start to orbit backwards. It makes a terrible racket when orbiting backwards. Copeland says this does not damage scroll but it overheats compressors until it finally trips internal protection due to overheating. If you live in an area with a lot of thunderstorms and get a lot of power glitches you still should have a short-cycle timeout timer. The internal protection overtemp/overcurrent breaker has a limited number of trips before it gets damaged, requiring a compressor replacement. I have noticed the turn off 'grunt' sometimes occurs more when it is cooler, like at night, with lower high side pressure. I am guessing lower pressure does not provide the 'slamming' force on check valve to completely seal it. It is a bit ironic because lower temps make it more likely to have flood back.

4:25 What is the difference between "t4 coil temp @30.4F" and the other reading of 28.8F?

I noticed that Slidell was increasing in capacity, but the screen was staying idle directional Vals either bleeding by or a slide out. Glad to be rebuilt.

This is the best video I have seen on Scroll Compressors and I am not even 8 minutes into it silently.

You wouldn’t happen to remember the part number for this txt kit you used.

Very, Very nice. You did a great job 👍

We had a Carrier system installed 10 months ago. The ac unit has a Copeland scroll compressor. Started making this noise between winter and spring. Installer came out for a service, I was told this is normal and that all units make this noise. My concern is it didn't make noise for 4-5 months. He called Carrier tech support only to get confirmation that it's normal.

Variable DC power supply for this experiment?

I never had the time to do these things when I was a contractor ! Great videos !! Good stuff for techs to know !! 👍

Great video!!The only problem I see with vac gauge set up is there’s no valve to isolate when refrigerant is introduced and manufacturers state that you shouldn’t expose them to positive pressures and oils. Wish they made core depressor with isolate valve or gate valve.

That's neet

Если кому то нужен будет ремонт датчиков и ТРВ трейн обращайтесь

Sir please tell me what can happen if the load unload valve is not working

What is that tool called to power exv

You quit doing vids bro?

Congratulations for you

Must be a Lennox thing. Had the same issue on a similar looking Lennox condenser this week and happened on your video that pointed me in the right direction. Good find on your part 👍🏼👍🏼

Awesome! Great piece of technology. I was so curious now I understand.

The place is called Texas Ice House. I worked there when I was with Cimco Refrigeration and my partner was Jorge Borjas.

Few things to highlight here: 1. You are using flame (from sulfur stick) near to NH3 gas leak, which aggravates fire risks. You know NH3 is flammable right? 2. I don't see you have an NH3 detectors around that area to easily detect leakage. 3. It seems also you don't attach this area to your scrubber system, if you have one. 4. It seems also you don't wear any breathing PPE at all when you are entering to this area.

So since the capacitor was wired backwards that's causes I'm assuming both the compressor and fan to run backwards? can this happen just by reversing the incoming powers polarity ?

Only thing I didn’t like was that Acid Away. Nothing belongs in a system besides refrigerant, and oil. No stop leak, or additives designed to absorb moisture or acid. If you do a proper clean up, you shouldn’t have to add something to finish the job.

Where did you get that from

0:21 and 0:29 Was that the oil??

Cherokita consulta, cómo se llamaba ese cable q va a la lap?

is the noise at 1:34 "like a moped" is normal ? My heating pump is doing same noise, I've had a pac for a few years, and I find it surprising that it makes this noise.

Very nice. But ... can it see ghosts in the night ?? 😅😅

1:26 This doesn't even have to be the removal or failure of the overload. This can happen simply if some dummy wires an outlet receptacle wrong! All it takes is something like a failed start relay or overheated compressor motor to short out the stator windings and unless the breaker trips, or house fuse blows, the rest is history.

The thin flapper valves are a weak point in compressors. They cracked in my Harbor Freight air compressor, but replacements were ~$8 and easy swap (youtubes). Of course no liquid passed thru, just fatigue from repeated flexing. Similar flapper plates in the Denso AC compressor of my 2002 Chrysler. Didn't break, but a rebuilder messed up, putting 2 flappers plates on one sid (stuck together) and none on the other side (dual-acting pistons). Tore it down and fixed it. Given the bent thick steel on the backers of this compressor, I agree that liquid likely got inside the cylinder to hydrolock. Appears not a robust design with that plastic inlet tube and iffy seal to keep out oil. I wonder if specific to Carrier, or if they out-source compressors. Indeed, many HVAC boxes come from the same factories with just different brand names attached.

Those suck they are in the motor. Frick will just disable the analog channel 😂