Once again. Best A/C channel on the platform on my opinion. Thanks for the master lesson

@acservicetechchannel

2 ай бұрын

I am so glad that you are enjoying the videos!!

@redycardenas9117

2 ай бұрын

@@acservicetechchannel hope you do a video about carrier infinity system. Feel lost every time I have to work in one of them.

What you are describing is a stepper motor. This HVAC trade is becoming a very complex trade many thanks for doing this video.

@acservicetechchannel

2 ай бұрын

Yes, it is very similar to an AC stepper motor! Thanks!

Great lesson as always Craig. We really appreciate the time and effort you take to make these presentations.

@acservicetechchannel

2 ай бұрын

Thank you so much for your support Tom! I appreciate you!

I greatly appreciate you Craig I'm not really familiar with the EEV/LEV and you are just introducing me to it's purpose gracias sir for giving me a rundown on these devices and how they really work 👍👏

@acservicetechchannel

2 ай бұрын

Glad to help!

This lady’s nd gents is why you need to subscribe to Mr. Miggs channel. Only testing resistance can you determine if the EEV ,LEV is operational. What a excellent explanation, demonstration nd visually satisfying post. Thankyou so much Craig for all your posts , editing nd much needed content for us guys in the field ..

Crude but effective cut-away. Thanks!

@acservicetechchannel

2 ай бұрын

Thanks a lot!

Great video! Thank you.

Great vid, Craig.

Great info. Thanks, Craig.

@acservicetechchannel

2 ай бұрын

Brian, thanks a lot brother!!

Great Video. Thank you for sharing. Have a nice weekend.

@acservicetechchannel

2 ай бұрын

I always appreciate your comments, thanks!

Pretty darn cool !

Thanks

Ty.

Great Video Craig..Hoping I could have also the book for my reference.

@acservicetechchannel

2 ай бұрын

Awesome, thanks!

@danielkelley7422

2 ай бұрын

It’s well worth the cost

4000 pulses, that's wild!

@acservicetechchannel

2 ай бұрын

yeah absolutely!

I’m going to start HVAC school this summer. Your channel has helped me so much already. I’m ready to feel proud about learning all of this. Thank you for teaching sir! PS: any book for Rookies you could recommend me?

@acservicetechchannel

2 ай бұрын

Thanks so much for your encouragement! Actually our first book "Refrigerant Charging and Service Procedures for Air Conditioning" is a great book to start out with. We have over 2,000 reviews on amazon and its available at acservicetech.com/store thanks!

Informative video. On your site under quiz section the " Inverter Mini Split Quiz" question #10 asks " 10. How many thermistors are typically installed on a single zone system? above 0psi, the refrigerant...". what up with the " above 0psi, the refrigerant.." at the end... Thank You...

There are also different styles of stepper motors as well.....bipolar and unipolar motors.

@acservicetechchannel

2 ай бұрын

Yes 4 wire EEVs are bipolar!

@jasonjohnsonHVAC

2 ай бұрын

@acservicetechchannel always appreciate your freely shared knowledge....you are a good man, Craig.

@acservicetechchannel

2 ай бұрын

Thanks so much Jason!

Hi craig please can l ask if you could explain the air source heat pump install for a hot water system thanks from uk.

General question about EEV/LEV. Do six wire EEV/LEVs always have 2 commons and 5 wire ones just one common?

@acservicetechchannel

2 ай бұрын

That is correct!

How did you cut open so cleanly ? Ty for video !

@acservicetechchannel

Ай бұрын

Thank you for watching!!

Excuse me, I need a book on refrigeration, air conditioning and tender repair.

Can you tell me valve where the gets ground power for move the motor

@acservicetechchannel

2 ай бұрын

its just positive and negative dc ends from the circuit board, thanks!

🤘⚡️🤘✨✨✨✨

@acservicetechchannel

2 ай бұрын

Thanks so much Dave! You are awesome brother!!!

What are the symptoms of eev which remains open partially and liquid refrigerant flowing in stopped indoor unit in VRF system

@acservicetechchannel

2 ай бұрын

if there is refrigerant flowing and no airflow, the coil will be very low in temperature and there woukd be frost.

@imranshaik675

2 ай бұрын

Why EEV doesnt fully gets closed in stopped indoor unit in vrf system. Is it gear problem or mechanical needle. As most common answer due to impure foreign particles preventing the needle to close completely

Are they problematic? They just look so tedious and junky looking Compared to a piston that will never fail Any feedback? I usually install residential TXV equipment never really messed with EEV yet

Is there any reasoning (besides price) for one over the other? The LEV looks like a Carrier product to me "look what we made, just like an eev, but more expensive and wont last as long".

@acservicetechchannel

2 ай бұрын

There are more steps of control and more strength for closing the pin position due to the gearing.

@Adam-ul2px

2 ай бұрын

@@acservicetechchannel I dont see much of this stuff as Im fairly rural and have a set amount of hvac equipment in my area but the LEV guts looks like the inside of my 5 y/o's toy cars. Everything Ive ever heard was EEV's are 100x better control than a TXV, now LEV's give more control than EEV's. I really want manufacturers to focus with a laser on reliability, enough with gizmos for a bit, who cares how efficient it is when the coil leaks after 3 years?

What are the symptoms of the bad EEV ?

@acservicetechchannel

2 ай бұрын

if its stck closed, it would be hogh superheat and the majority of the coil would be higher in temp then it should be, thanks!

Plastic gears , not good , will certainly break , I repaired VCRs for many years , plastic gears break .