How to Check Evaporator Superheat

Рет қаралды 98,320

4 жыл бұрын

In this video we discuss how to check evaporator superheat using testo smart probes in a walk-in cooler. Checking superheat at each evaporator on a multi evaporator system is important to system performance.
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Пікірлер: 90

@HVACKnowItAll 4 жыл бұрын

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.

@enemyofthesheeple Жыл бұрын

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

@sparkytech8787 2 жыл бұрын

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

@HVACKnowItAll 2 жыл бұрын

I appreciate that!

@rubensabeast 2 жыл бұрын

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

@HVACKnowItAll 2 жыл бұрын

You're welcome!

@fandf1449 6 ай бұрын

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

@xraybravo7180 4 жыл бұрын

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!

@JaykeSapalaran-iq3qs Жыл бұрын

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

@robbiebritt8997 3 жыл бұрын

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!

@xraybravo7180 4 жыл бұрын

Great video Mr.

@HVACKnowItAll 4 жыл бұрын

Thank you!

@lorenzoontiveros7875 4 жыл бұрын

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

@zekenzy6486 4 жыл бұрын

Great video. Happy weekend ^_^

@HVACKnowItAll 4 жыл бұрын

Thank you, you too!

@mehdimirzaei451 2 ай бұрын

Easy explanation thanks buddy

@RobRocker09 4 ай бұрын

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

@michaelminihan6430 7 ай бұрын

Nice. Great info

@mochamadyani 3 жыл бұрын

Great video

@hrdworkin7633 3 жыл бұрын

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,

@supertech_hvac851 5 ай бұрын

Great content tech

@chrisgormley5751 4 жыл бұрын

Nice explanation about the txv and how to adjust it.

@HVACKnowItAll 4 жыл бұрын

Thanks Chris!

@farhanulrahman9302 2 ай бұрын

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

@sknight0391 Жыл бұрын

Beautiful !!! 😎👍

@ashkarpk094 4 ай бұрын

nice explanation brother..

@randyandrews2743 4 жыл бұрын

Simple and to the point. Thank you.

@HVACKnowItAll 4 жыл бұрын

Thank you!

@angrynas9668 22 күн бұрын

Cheking superheat near desire temperature

@mikegamer2732 10 ай бұрын

Nice sir. I like your tools

@RobRocker09 Ай бұрын

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.

@halilcankaya3202 Жыл бұрын

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

@ares3914 11 ай бұрын

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

@hvactech2966 2 ай бұрын

Nice video

@360hvac5 Жыл бұрын

Thanks you

@benfranqui5283 2 жыл бұрын

Great job thanks

@HVACKnowItAll 2 жыл бұрын

My pleasure

@edram1909 3 жыл бұрын

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

@wasimedoo7994 Жыл бұрын

Very good information 👍

@timetotravel5886 Жыл бұрын

Awesome bro

@marjoneantifuesto4503 7 ай бұрын

thanks

@HughesManHVAC 4 жыл бұрын

Nice!

@HVACKnowItAll 4 жыл бұрын

Thank you!

@hectortorres542 8 ай бұрын

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

@videos10 11 ай бұрын

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?

@armandoacevedo932 4 жыл бұрын

Good video's👍👍👍👍👍

@HVACKnowItAll 4 жыл бұрын

Thank you

@ajayibabatundesamuel5663 Ай бұрын

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

@abdullah_q8171 Жыл бұрын

So if i need more cooler to my package unit?

@AlexiFernando-qy9fg Жыл бұрын

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

@nbctcp3450 7 ай бұрын

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

@6metal6forever6 4 жыл бұрын

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

@nhelzyoung2958 3 жыл бұрын

boss is that chiller evaporator system?

@carlosemmanuelgarciabrito791 3 жыл бұрын

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.

@goldencoolingsolution 6 ай бұрын

Is Equalizer after expansion valve bulbe

@kennethportes3706 3 жыл бұрын

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

@CubanMofo 11 ай бұрын

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

@stephwaylonwells3218 2 жыл бұрын

👍

@eugenenel2486 Жыл бұрын

What make instrument are you using to measure super heat?

@HVACKnowItAll Жыл бұрын

Testo Smart Probes

@texture6 Жыл бұрын

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

@ananthakrishnanm7717 3 жыл бұрын

Can you provide details of pressure and temperature measuring device

@HVACKnowItAll 3 жыл бұрын

They are testo smart probes

@raviyadav8743 3 жыл бұрын

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

@Gianki00013 2 жыл бұрын

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.

@anowarhossain2558 Жыл бұрын

Hi sir

@AbdurRahim-ir9yz Жыл бұрын

sir your work places?

@Kyle-sb8dj 2 жыл бұрын

I always told myself lefty lessy and that stuck

@WPM_in_ATL Жыл бұрын

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

@MR-nl8xr 3 жыл бұрын

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. ???