HVAC Videos For Beginners 

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I'm HVAC tech with 25 years experience, the double up dryers one should be removed. It really taxes the compressor just like a kinked line with the extra restrictions of the second dryer. It can cause the liquid to start to flash to gas just like a metering device and not feed the txv with a solid collum if liquid causing all kinds of problems. IMHO I would remove the one inside the unit, that way if you have to change the dryer you can just pump down the unit instead of having to recover it. I know you like to install them in factory location but that why I always relocate them, it's a time and labor saver in the future. Hope this helps you out. You do a great job I don't want you to think I'm criticizing you about dryer location just trying to help you out. Love your content

I’ve been warehousing for 10 years and lately hvac has been catching my attention this is interesting stuff right here !

I’m going into hvac soon and I’m loving this.

After a stressful day that blunt roaster might be a good ole buddy to have 😂🤣😂 ... Thx for sharing ... You make me laugh ...

If only I wasn't stuck in a meeting.. I cannot wait to watch. Usually HVAC as you know is easy... It's does it cycle on running both indoor and outdoor fans and the compressor then whether or not all the refrigerant leaked out. It's a mess fixing a leak though ripping out an EVAP coil on their third floor...it seems they never pump down especially the rotary compressor units which run on a prayer and a hard start just to get them in the mood to run.

Lol you kept talking about that blunt makes us wonder why you didn't film inside 🤣🤣

Thanks for the tip on those hard starts. I have the same Goodman condensers at my current property so it’s good to know that those hard starts tend to trip the breaker when they go bad.

Look on the back of that electrical panel on the condenser. It'll tell you the design subcool/temperature charge correlation with ambient and indoor temperatures. Normally Apt ac's are oversized anyways so doesn't have to be perfect unless you're working on 3rd floor end unit. Unit with a high load that is.

I'm taking a h vacation class just starting...this gives me a good idea 💡 what to expect thanks 😊 🙃 🙂 😅 👍🏾

You should be good on the superheat thing since it's a txv I was always taught its the subcool that matters you would pay more attention to superheat if it was a piston . Superheat for piston subcool for txv is my rule at least .

Hello Lex, I agree two filter dryers are one too many. Would like to hear from the tech that installed new compressor. Your content is refreshing, many thanks Lex!

My guess on the high SH would be an extra long lineset since it's apts. and you have multiple floors and long runs.

Great video bro keep them coming, I work on the property and I sometimes have to close out work orders and the ones that I look at is the commons that the other maintenance guys report AC unit is ice up and all they do is add refrigerant don’t even look for leaks this is sad and don’t even know the superheat or sub cooling and we are talking about the senior tech🧰 at that 🤦‍♂️

If your line set goes underground your superheat may be high if you check it outside. Have you checked your true superheat upstairs at the air handler?

Another great video Lex, thanks you! My 2 main thoughts after watching this video are this: A: The fact that those units come from the factory with a hard start kit to me is a big red flag of poor engineering. I took hvac courses back in the early 2000’s and I don’t ever remember a situation with a hard start kit being installed at the factory, seemed like it was always an option to be installed in the field after if a compressor for being troublesome and popping breakers B: Correct me if I’m wrong but with all the problems you are seeing on those units, how much research did the apartment complex honestly do before deciding to install those over the entire property when it was built? So sad that we are in the day and age where the lowest bidder is always what wins. Anyways, just a few thoughts I had, keep up the great vids!

I won’t beat a dead horse on this one. Yep good stuff as usual my friend!!

That was majorly helpful!!! Thank you

Bro keep posting Im learning from ya

the hvac guy said that the maintenance guy won't know they use ryobi drills 😂.. two filter are better then one 😂... but all joke aside thank you for all your great video big fan of yours.. I watched your cpo video. and sure enough I passed it the guys I knew I didn't sit with them 😂..

Can you make a video about the phase out of 410 and new freon that will replace it

Your saying you can never get the superheat below 20? Even by adding charge? Either semi stop up txv, undersize TXVs or sometimes there's strainers b4 the TxV those could be plugged due to being a appartment complex installs go really fast and not much care goes into it, thoes be my guesses

I’m just getting into hvac like I’m in my 3rd day of class does anyone have any advice for me ? It was overwhelming until I spoke with the teacher because I’m learning from scratch

i change the fan motor and the capacitor my AC still won't run what could be ? the contactor ?

lex i have a goodman heat pump i have therostat set a 67 and temp coming out of the vents is 84 is that normal thank you

So would you recommend an HVAC school that offers classrooms to simulate the work or online? My only toss up is the time difference between in person and online in person is 11 months and online at six or less

I’m thinking on getting into this I hope I do good

When we turn our inside unit on it makes the button click in on the outside unit but the unit won’t come on… we have power evoking I got the unit but the fan or anything won’t come on any info would be grately appreciated

I was taught that the subcool should be between 8-12, and the super heat should match. Is that true?

Lex another informative video

6:30 I'm an apprentice with only a few days experience and I'm here to learn, but I can tell you that that looks like laziness to me 😂 especially when we consider the atrocious wiring.... that dude just didn't even care lol

I've been repairing electrical/electronics for over 40 years. I Now teach AIRC technology. Looks like you have some skills! The only thing I would recommend is for you to reference the installation and parts manual as opposed to using the procedures used in the past. The industry is changing fast! The capacitor that was changed out (30/5mfd), may have been the correct cap for the rotary compressor. The only way to know for sure is to reference the parts manual instead of : "all rotary compressors comes with a 45 mfd"! That's just not true! It's possible this one did; however, you don't want to be the goofball replacing a cap with the wrong value. The only way to know for sure is by referring the parts manual with the model number of the unit. Also, you don't mention what subcooling the unit calls for. If it called for 8 +/-1, the unit was overcharged because it was running at 12 degrees subcooling. It was 3 degrees off. This information you will find in the installation manual, service manual, or data plate. This is why its very important to reference the manuals. You may have been stressing the super heat when all along there was nothing wrong with it. Old Industry standards are changing! Read the manuals! Don't assume all units and/or brands work the same. Once you have read the manuals x many times, you won't need them anymore. Good luck!

Thanks for sharing the video. I hope you don’t have to change out those txv and all those dryers. Good job. Safe safe out there.

Working hospitality maintenance…. Smell the reefer all day everyday in the hotel. Especially in a larger complex.

Do you have a link for purchasing that multimeter? Tia

I straight pipe the filter dryer inside with copper and put a new one on the outside of condenser

Did you put a bigger hard start on then?

The last ac unite got big leaks, can you use LEAK SAVER to save it?

Hey where did you do your training

I’m 19 with little work experience but I want to do HVAC

Smoke em if ya got em. 😆

I’m 26 i been a mechanic for 10 years im thinking about changing careers would it worth it

Good job bro bro👍

I’m 19 and interested in doing hvac

Man I’m in Texas it’s getting hot and my ac not cooling let me see if replacing the capacitor with a 45/5 will work . I’ve already cleaned it out .

So I see in this vid Fieldpeice gauges and not testo. Why? Why did you buy fieldpiece?

Hi, quick question I found you on a RU-vid search for HVAC heating and cooling. Trying to help my son I’m a single mother, putting my son through trade school for heating and cooling HVAC. he’s struggling severely. He just started about a week or so ago and had a test two days after school started for the math part and didn’t do well. it is super hard for him and he has to learn everything so damn quickly very fast and the teacher he has is AWFUL and rude. he’s getting very discouraged and wondering if this is really for him. I want to keep motivating him, but don’t know a thing or have any men around that know about this. if you had any tips for new students, that would be greatly appreciated. (cause i’m sure you’ve been there lol) I understand if you’re very busy. thank you 🙏 Have a great day! 👍

The old filter could be a restriction later on or very soon. That is not good for the new compressor...

Do you ever try adding leak seal before you replace coil?

He's chiefing a blunt 😂😂

what is a rotor compressor?

What are the numbers your refering to?

Factory-installed filter driers inside condensing units should be banned. I'm not as riled up about the filter being installed outdoors but almost everyone says having it as close to the expansion device as possible to prevent any potential moisture from flashing into ice right at the TXV/piston. At least that is my opinion.

What kind of math do I need to know to do hvac? I’ve never been good at math I only know algebra

I want too learn hvac but no jobs hire without experience

I need to get the digital gauge. Or have the company buy one lol

Why those units so low to the ground?

Am a HVAC technician for 5yrs and am looking for this Job

🤣🤣 smoking a big ol blunt

So what throw side at 47 deg if ur at 10 or 22 sub cool

That's what happened overworked start kit

The old filter drier should have been replaced

Instead of replacing the coil. Why not just replace the air handler it’s a hell of lot cheaper then a coil

2 filter driers is def WRONG!! You did em the right way skid...and a freakin contractor did that lol...

I'm 15 years H-VAC...he really should have changed out that filter.

I just replaced a titan pro that went from 45uf to 20uf in les than 2years. They are made in China. The titan hd is made in America . I went to buy an MARS made in American and it’s assembled in Mexico. Went to another supply house and the MARS same part number as the other one Is made in American . MARS ADVERTISES “Made in American”. So, is assembled a legal play on words! “

You shouldn't have 2 filters 🤪

That's a muffler on the inside

I came here b/c my college degree isn't sh*t !

Martin Laura Miller Thomas Perez Eric

Lazy did not want to change it.

need to be off

I’m 19 and interested in doing hvac