Multi-Zone Mini Split, Mini-VRF, and VRF System Differences Explained!

In this HVAC Training Video, Craig explains the differences between a multi-zone mini split, a mini-VRF system, and a VRF system at AHR 2024. He covers zones, metering devices, lineset lengths and more! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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#minisplit #miniVrf #Vrf #multizone #hvacr #hvactrainingvideos #hvactech #technician #fan #trainingvideo #AHR #ahrexpo #expo #c&h #cooper #hunter #cooperhunter
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[AMCHOTC]

I love how you double the terms, it makes it easier to understand.

[stevent]

The energy savings by one unit being able to cool so many branches must be stunning! Up to 38 Tons capacity?! The only drawback I can think of is the lack of redundancy means many unhappy people when it needs repair vs 1

[sourcemechanical]

Great Video!
HVAC/R technology is just getting better.

Regards From Grand Canyon, AZ

[patricknelson]

3:09 - Think I’ma get one of those hyper VRF’s for my 140sqft room. Should get me a nice arctic blast in that 100°F heat upstairs. I want it snowing! ⛄️

[rickybungalow]

Mini vfr is very interesting. Not budget friendly but great for commercial applications

[fernandofrancisco]

This AC unit makes you feel like you need to go back to school again.

[NorCal-refrigeration]

That’s the future learn it or get left behind 🤘✨🤘✨🤘

[harryschrysan]

Omg, hvac companies should have a mandatory in-house training on these systems.

[Aerospace_EdC]

Craig, Just wondering if you could answer a question about my C&H unit, much appreciated. I sent this message to C&H technical support but they did not respond to my message, maybe because I'm a homeowner asking.
I have a C&H CH-HPR24-230VO outdoor unit and a CH-M234AHU air handler. I'm not using the C&H communicating thermostat, instead using an Ecobee 3 lite tstat.
When in heat mode I set the thermostat to fan ON, the fan doesn't turn on. The Ecobee also has a feature to keep the fan running for a period of time after the set temperature is reached, Ecobee calls it a cool down period. When I set the fan to ON or in the cool down period I verified the G terminal is at 24 volts.
I'm thinking that the fan might be controlled by the board in the air handler and not solely by the G terminal ?

[natepeterson]

I thought appliances were getting tough. Looks like the tubing is thick, hopefully that's the case. Imo split style systems should only be installed by someone that went through traing from the equipments manufacturers. Nothing like getting an after hours call on one of these where the homeowner over torqued the damn fittings or didn't have nitrogen to do a pressure test. Then they flip out when you tell them how much it costs to correct.

[CybekCusal]

Nice video. I'm a big fan of the 3 pipe systems. Been using them for 20? years?.

[YTsux-]

Will these be convertible to A2L and also keep their efficiency rating?

[scalistos]

Hi Greg, keep making those
It’s a big deal

[kyleh]

What I would give to have that kind of compressor access on Airstage VRF systems.

[chesstime]

Looks like a big change is coming in Heat Pamp system or no more traditional heat pumps….

[moisessalinas]

Hola soy un nuevo subscriptor. Puede hacer ese vídeo vrf en español?..

[Chainsaw]

Love your videos. Please remove the very distracting zoomed in side videos of King Kong hands moving around!

[GooogleGoglee]

Guys, please make the video in landscape mode... This makes no sense.

[gcg]

Good video, but 2 things that could have been easily avoided are negatively impacting its overall quality and teaching value:

1) As already mentioned, video should be in LANDSCAPE mode, please

2) Please, DO NOT GO SO FAST. You are not making this video for people who already know what you are presenting.

[mykaldenton]

Let's say, if you 3 zones and one of the zone breaks down, all the zones also, go down. 3:40 Do you think having such a multi-zone is a good idea?