It's not always the TXV!

@HVACToolReview

4 жыл бұрын

HVAC Know It All haha truth. you must be part of a few of the HVAC Facebook groups out there.

@lerch400block

3 жыл бұрын

When it is it is when it ain't you wasted a whole fucking day.

@jaxmoses4259

2 жыл бұрын

instablaster.

Great channel brother. I've been doing hvac/R for about 7 years. Still learning. Thanks for making videos Mr.Know it all. Lol

the best explanation so far that I've seen, do you have a video and so on subcooling?

love the detailed explanation brother, keep them coming, I just subscriber.

@HVACKnowItAll

2 жыл бұрын

I appreciate that!

Nice video graphics,good view on tablet about pressures and saturation temps over all good sound and intro music

@HVACKnowItAll

4 жыл бұрын

Thank you!

Thanks a lot for sharing that always scare me to try ,but u make look so easy thanks again

@HVACKnowItAll

4 жыл бұрын

You're welcome

would you check the site glass at the condenser is see if its flashing first, then check each evap, great video

Very important in refrigeration. I run in many times I'm proper super heat and compressors failing in a few years.

Easy explanation thanks buddy

Great video tutorial ❤ thank you for sharing your knowledge and experience 🫡🇵🇭♥️

This just flipped the light bulb on lol thanks for the content brother

@HVACKnowItAll

2 жыл бұрын

You're welcome!

Great video Mr.

@HVACKnowItAll

4 жыл бұрын

Thank you!

Great video

Nice. Great info

Nice explanation about the txv and how to adjust it.

@HVACKnowItAll

4 жыл бұрын

Thanks Chris!

@farhanulrahman9302

3 ай бұрын

​@HVACKnowItAll How to find what is optimal SH OR SC Requires for a 404a system

nice explanation brother..

Nice sir. I like your tools

Great video. Happy weekend ^_^

@HVACKnowItAll

4 жыл бұрын

Thank you, you too!

Great content tech

thank you sir , ı love testo equipments a lot bluetooth connection is very usefull

Great video and thank you for sharing your knowledge! any tips for new techs in the commercial refrigeration field?

@dnoorian

2 жыл бұрын

ya, follow @dnoorian

Great tip! The way I remember is if you want to Lower superheat, you Loosen the screw.

@HVACKnowItAll

3 жыл бұрын

Correct

@jollyscaria1922

2 жыл бұрын

Lowfrezing point ,is 2'f----'4,

Simple and to the point. Thank you.

@HVACKnowItAll

4 жыл бұрын

Thank you!

Beautiful !!! 😎👍

In regards to mini split heat pump units, if you are meant to use the sub cooling method as a way to check refrigerant charge because of EEV in outdoor unit, how are you able to do it if there is only 1 service port on the Suction line and nothing on the liquid line? a lot of mini split systems seem to have this set up. thanks!

Very good information 👍

Awesome bro

Great job thanks

@HVACKnowItAll

2 жыл бұрын

My pleasure

Nice video

Thanks you

thanks

What about checking the condenser for the right freon pressures and checking the sight glass first. So the Condensers are running correctly, then check each evp.

Good video's👍👍👍👍👍

@HVACKnowItAll

4 жыл бұрын

Thank you

Nice!

@HVACKnowItAll

4 жыл бұрын

Thank you!

Thank you. If you have a chance to show the old school way with gages would be cool.

Cheking superheat near desire temperature

When adjusting the txv valve, and it does not respond to any turns whatsoever. Not allowing the SH to change. Would this mean txv is bad?

So if i need more cooler to my package unit?

Sir, How much SH is adequate for a -40°C Blast Chiller using 404a refrigerant in 63KW system with 150 HP Screw compressor ?

Home split aircond R32 1. how to find target superheat in Celcius 2. do u hv chart for it 3. what remote temp do u set i.e 24 celcius, low fan, no swing

boss is that chiller evaporator system?

if the expansion valve is manufuntion on chiller what cam l do

Good day sir, about the app... How to use em

Nice video mate but clear my mind I read on google the for must system superheat at the evap should be 6-8 walk in cooler and 4-6 freezer can u explain that for me

@icecoldfridgy1729

Жыл бұрын

You typically want your evap SH to be low, so you can ensure you are using more of the coil to boil off the refrigerant. High evap SH means you're loosing evap efficiency. You also have to be worried about too much system SH as to not overheat refrigerant cooled compressors, it's bad for the oil.

Looking to get a set of the Testo Smart probes. Do the probes and the app have the capability to log data and display graphs of the pressures and temps?

@HVACKnowItAll

4 жыл бұрын

In graph form yes, data logging yes as long as your phone says beside them. You cant set them up and leave for a couple days and leave. For a couple of hours no problem.

@6metal6forever6

4 жыл бұрын

@@HVACKnowItAll Thats a bit unfortunate. I was hoping to have the probes connected on the system whilst diagnosing other faults on site without having to leave my phone/tablet behind. thanks for your reply

Is Equalizer after expansion valve bulbe

Can you provide details of pressure and temperature measuring device

@HVACKnowItAll

3 жыл бұрын

They are testo smart probes

The medium used to absorb the heat, the refrigerant. Is related to the amount which increase or decrease The Superheat You want the right amount of refrigerant which relates to the right amount of heat absorption

Sir , how to find out proper gas charge in system by measure superheat .?

@HVACKnowItAll

3 жыл бұрын

You need to measure super heat and subcooling

What make instrument are you using to measure super heat?

@HVACKnowItAll

Жыл бұрын

Testo Smart Probes

What happens if you permanently take off the sensoing bulb of the

👍

Why are you checking superheat if there is a txv valve in the system?

@HVACKnowItAll

2 жыл бұрын

Tx valves still require an initial set up and periodical check.

Hi sir

sir your work places?

I always told myself lefty lessy and that stuck

404, EH? Isn't that a freeway going north from the Don Valley Parkway? 😀 You sound like you are Canadian...if not, I will remove this comment. Having fun here in Virginia.

@HVACKnowItAll

Жыл бұрын

Yes sir haha

I don't understand why we always adjust the stem on TXVs if they are MODULATING valves to begin with i.e. the TXV is going to adjust the needle pin for refrigerant flow to wherever the sending bulb tells it to. Adjusting the spring tension via the external stem is almost like playing with yourself, it feels good but doesn't make anything. That sending bulb and E.L. are going to tell that needle pin how much to open or close after everything is said and done anyways, do why bother. ???

Cap er lary not capil a ry

@HVACKnowItAll

Жыл бұрын

No bud, there's no such spelling as caperlary. The word is capillary - some pronounce it different than others.

That is the wrong way to teach. Shortcuts lead to failure and misdiagnosis.

@HVACKnowItAll

Жыл бұрын

Pardon? What is wrong?