Mini Split Heat Pump Facts (PART 1: Ductless Air Conditioning Mode w/ AC Service Tech)

[@superiorcomfortheatingairl4636]

AC Service Tech and HVAC School is the best thing for acquiring knowledge and keeping up with the ever changing world of HVAC. I appreciate everything you guys have done👍

[@frankgall6]

Couldn’t have said it better myself 👍🏻

[@acservicetechchannel]

Bryan, thanks for having me over and for the chance to teach with your students! I really enjoyed it! Fun times!!!

[@eddiegomez3628]

Keep bringing him on, so that he gets better at teaching to actual people in the room. Presentations can be hard. He’s knowledgeable, I have his books and quick reference cards.

[@adamr1637]

Yes, please!

[@channelcatchaser9426]

Craig knows his stuff. Great video as always

[@johnpardo2465]

Glad you guys teamed up you 2 are very knowledgeable about the trade and have the skill of teaching it as well!!! looking forward for more of this videos!!

[@NorCal-refrigeration]

Mini split heat pumps are amazing we got 118 degrees out of a Fujitsu and there is no electric ⚡️ heat strips. Amazing stuff.

[@matthewodonnell1856]

Yeah, they are nice. With the low ambient units I see temps as high as 130 coming off the coil.

[@motog6436]

@@matthewodonnell1856 isn't it ideal to get the condenser temperature as low as possible for efficiency?

[@leekazan556]

I do HVAC in a prison and we punish mini-splits like no one else does. The Fujitsu and Mitsubishi units are legendary. We have Mr. Slims that are running 24-7 and over 20 years old and still kicking ass!

[@Silky_boi]

I’m gonna sound like a freakin genius on our company’s next mini split class 😎

[@philippagliarulo1853]

You guys are always so detailed and informative! I’d love to see some videos focusing on commercial refrigeration. Please ;)

[@michaelcostello6991]

Very informative. Never covered this in my HVAC course with the expansion valve outside.

[@krzysztofszyszko2873]

Correction to 9:30. To weight out refrigerant to see if low on charge. Hell yeah brother!

[@damon6852]

This was just excellent…as good info on minisplit systems is very hard to find!!!

[@brianmcdermott2430]

Great class Bryan & Craig. Thank you.

[@danmercer2645]

Great video. Good to see you guys hook up

[@exclusive_148]

how does the thermostat work in comparison to a regular unit?? Can you do a video on the sequence of operation on the electrical ??? That would be extremely helpful

[@martinmataic2100]

hello , I follow your channel and you have many interesting videos. Here in Europe, i.e. in Croatia, where I come from, we have discussion about the minimum pipe length and the effect on the operation of mini split air conditioners, I am interested in your opinion, what is the minimum pipe length that should be in order for the air conditioner to work properly

[@jeffshore682]

Informative video. Could have used a larger screen so that we also could see the pictures.

[@derrickgarcia303]

The ice machine approach for repair. Do you have to use oil trap on this if the indoor unit is below the outdoor unit.

[@paulkolbert1478]

Great video!!!!

[@JohnnyJr396]

Thanks for the video. Are the multi zone systems or even the split systems with inverters like mr cool , more forgiven or even matter if they oversized for the area? Just curious on load calculations, obviously undersized wouldn’t work .

[@samersarah957]

So should use superheat and sub-cooling in this system? Thanks.

[@robbiebritt8997]

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!

[@pineychristian]

Some mini splits are design to have zero refrigerant added depending on overall pipe length on multizone units. Brand like midea can use on some of their 4 ton models 115ft max length on a single zone or 263ft max length on all zones combined.

[@martinm7912]

Great video, thank you!

[@themrmoy40]

no target superheat required for split systems ?

[@EPeltzer]

So the long and short is that you CANNOT diagnose low refrigerant level on mini splits using super heat measurements, at all. IF you suspect low refrigerant, you have to recover all the existing refrigerant; look for leaks, fix, pressure test and vacuum test until leaks are gone, and finally add back in the correct weight of refrigerant. MAYBE a shortcut would be to add small amounts of refrigerant and test BUT you risk over filling and compressor damage. I have watched two of Craig's videos explaining the situation and that is the basic takeaway as I understand it.

[@jericosha2842]

This will help me hate mini splits less. Working on something you are unsure of sucks.

[@themrmoy40]

no filter dryer ?

[@kevinfoster2308]

I braze all my head units. I wish they had brass or copper stubs on mini split condensers

[@kevinfoster2308]

@Wite Powa that's adorable

[@Mrcarloserwtf]

Chop those flare connections on the indoor unit and braze the pipe , save headaches

[@andresperez5812]

Hello Thank you for everything you do I have been watching your video for a long long time but there are times I have to translate the videos because I do not speak English, could you put subtitles in Spanish, please? Thank you

[@242sp]

Ditch the mask dude, you're in Florida, you should be glad you have the option. Its weird when you can't see a persons mouth move when giving a presentation, you might as well be in the back room talking into a microphone. In a trade that deals with filtration I know that you know that masks are a joke, you just can't say it , publicly, for now. Other than that - Craig and Bryan are among the best in business, ALWAYS the best info a tech could ask for

[@jeffshore682]

Please leave your political opinion out of it. This is a technical training video.

[@242sp]

@Lucas McCain Thanks Lucas, exactly. If asked to reference the political opinion he's referring to, he'd have to make one up. People should think, or at least read before they type.

[@themrmoy40]

who gives a shit if you can't see a person's mouth move "its weird" cry me a river. personal choice ,public school,its required, and for your own health!! 😭its weird😂

[@zlo92x21]

Make trouble shooting videos for mini splits there’s barely any you can find

[@davidgoodland6780]

Once you get over the mask its a good video thanks guys!

[@paulgaras2606]

If you’re trying to warm up a tank of 410a, definitely don’t put it near the outlet of a kerosene heater. You think you’re clever but when the cloud clears everyone will laugh at you.

[@bridgetrobertson7134]

But does he have a CO alarm in his mask?

[@erikgjording3684]

couldn't understand you with the mask on!

[@kentwood2914]

why the hell do you have a mask on?

[@HVACS]

Because it's a public school and it's required

[@coldfinger459sub0]

I Wish the automotive technicians had such great educational material available to them for the new heat pump systems on cars that some also have glycol heat exchangers with second expansion valve directly attach to the second heat exchanger with three water pumps and 2 to 3 three-way valves.

[@michaeldower4335]

Great video. Thank you!

[@themrmoy40]

no target superheat required for split systems ?