Full Installation of an Inverter Minisplit Heat Pump with Indoor Ceiling Cassette!

In This HVAC Training Video, I Show the Step By Step Installation of an Outdoor Inverter Mini-Split Heat Pump Unit Connecting to an Indoor Ceiling Cassette Unit! I show mounting the indoor unit with all-thread above the drop ceiling, installing the line set tubing, wiring the indoor and outdoor mini split units, pressure testing for leaks, vacuuming, weighing in the refrigerant, and checking operation! 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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[HVASEA]

As a State Licensed FL HVAC Contractor... I must say...You did an awesome meticulous by the book installation. You are a true craftsman. Excellent to the point explanatory video. I will be installing a 3 zone 6+6+6 with cassettes. Glad I came across your video... Excellent Job !

[stevegoulding]

Incredibly informative, you actually teach how to do, not just show off how good you are or how quick you can do something.

[brianmartin]

Thanks! I'm about to install 2 mini split systems at my house and this is by far the best video covering the install. I now feel confident in tackling the install.

[Pinoyphilly]

Thank you! Da best video in terms on installing a mini split. I am just watching in review as i remember installing my own 24, ooo BTU senville inverter 2 years ago. The right way is always the best way but then for DIYers like us the biggest expense was tools. I spent more on tools than the Senville Set but then I told my wife: When you learn or go to school; you pay tuition. Consider the tools as my tuition. But then I got them back after 8 installations mostly within our extended family. Thanks!!!

[jesusmylife]

You're my # 1 hero! You never show up only for YouTube marketing but also to transfer your real skills of this trade to the next one in the line even to the higher level. What it means in short what you're
1) you know the subject matter what you teach
2) you're not jealous to make known everything what you have accumulated through years of experience and knowledge for anyone who start even today.
Sadly to say most youTubers in these trade don't have such quality.
You're a man of character and integrity.
My prayers to you;.... healthy and happy life and longevity!!
Bravo Zulu 👏 👏 👏

[nebraskaman]

Great install. You can leave the flare but loose on the liquid line, and purge nitrogen though the suction line. Once it’s been purged, you can tighten the liquid line flare nut. Then continue flowing nitrogen to your desired pressure for the pressure test. This will allow for a more accurate pressure test, as with atmospheric air in the system, pressures may change just due to the pressure test not being 100% of an inert gas.

[wannis]

Hello Craig, you have set the standards of HVAC. We love your work. Thank You

[resipsaloquitur_esq]

You are the consummate professional. Everything is clearly described, and it appears, correctly done. I am always jealous when I run across something like this, because I know I will never be able to find anyone in my area who cares enough to carry out each step and take care to properly execute the fine details.

[wilfredovega]

Once again. This was an amazing demonstration of proper install, safety and technics used. I have also found that a surge protector at the disconnect should also be installed to protect inverter primary control board.

[dschlott]

Nice work and thanks for sharing your insight. the one suggestion I would make, and I do with my installations, is to leave the outdoor unit high pressure line off and purge the entire system with dry nitrogen. I then do the final torque on that flare fitting, followed by the pressure test. This avoids pressurizing ambient air in the lines and indoor unit, which might condense liquid water out during the pressure test. Not a catastrophic problem, but it may take longer to obtain the required vacuum quality as you've got to wait for any water to boil off inside the system. This is only a problem in high humidity conditions.

[EPeltzer]

This unit sure looks 100% identical to the Pioneer 12K unit I recently installed. THIS VIDEO is by far the best and most thorough tutorial on this kind of cassette unit on YT to date. Craig is fantastic and his other vids are equally good. Below is my review posted to Pioneer. I have a feeling a number of companies rebrand these Chinese made units.

Once installed, the unit works quite well. I bought the 120V model 12k with ceiling cassette. Have operated it for a week now. It is extremely quiet. It cools a 400sf living room with some spilling into the nearby kitchen. Once the house has gotten super heated during a 100F plus heat wave (like when you've been away from home), it struggles to cool the place down. However, if turned on early in the day, it will keep the area below 78F easily. Looking at the power consumption, it ranges from less than 400W to just over 1000W at peak periods on cool. But seldom more than 800W. Wow. That is probably about 3 times as efficient as our old window unit per BTU, and far far quieter. The inside unit measures around 40dB on high fan and the outside about 52dB! I'm very sensitive to noise but honestly you really can't hear it. I bought this unit for super efficiency and low cost running,  not for super cooling capacity. So in that sense it is working well. I have not tested heating yet. It's another 100F day here!
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The installation took longer than I anticipated, though I am used to doing challenging DIY projects. Had never done an HVAC install so it was a learning experience for me. Bought gauges and a vacuum pump etc. The instructions were detailed, yet in a number of aspects really inadequate. Also, a ceiling unit is more challenging than a wall mount unit. 
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The wiring instructions are basically non-existent. The outdoor unit wiring is fairly simple but connecting to the air handler certainly could have been explained in more detail. There is for instance an extra multi contact plug with no apparent place to plug in. Learned from Googling that this is for a wired thermostat control - not a word about this in the manual. 
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The worst aspect is the fact that the air handler runs on 240V power, even though the outside unit is native 120V. Apparently they did not want to bother to make a matching 120V cassette! So they sent a 120V to 240V transformer, which is a big heavy lump of a thing that you have to figure out how to mount in the fan intake area of the cassette. As it's hanging above your head, it needs to be screwed firmly. I had to drill screw holes in the plastic fan shroud, hoping not to damage anything underneath. It barely fits. That's a pretty shabby solution by Pioneer in my opinion.
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I did a pressure test even though Pioneer says nothing about that in the manual. The flare connections held fine. I used a torque wrench. After the vac and test, the refrigerant was released and the unit worked fine right away. 
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I don't think I would have tried this install without the excellent howtos on Youtube. On the  ACServiceTech channel Craig installs a ceiling cassette unit with wonderful detail, though it is a different brand it looks 100% identical to the Pioneer unit. Overall I believe the written instructions should be gone through and improved for non-professionals.

[jaimemendoza]

Nice video! Everything is explained step by step, very informative! Great work as usual! Thank you kindly for sharing your experience with the community.

[dymarke]

Thank you for making this video, this is almost exactly what I'm working on right now and I have found almost nothing about it on line. I am in the process of installing a four zone C&H with ceiling cassettes and since this would be crazy expensive to get an HVAC guy I'm figuring it out on my own. I am a remodeler so I'm good with most if the job but never having done AC that part is a little intimidating. I expect to get an AC guy to do the pressure test and top off the charge, but since it took me too long to install I have no warranty so I might do it myself.
Again I can't thank you enough for all the information including all the links, you rock!!

[kristopherlarsen]

Hvac roller coaster ride! I know 98% of this as an hvac tech but there's always something to learn especially when it comes to electrical work for me.

[agostinhomartins]

Quality workmanship as always and very insightful. Thanks for the upload ac service tech!

[burakokumus]

Another amazing video! Everything is explained step by step, very informative! Great work as usual! Thank you kindly for sharing your experience with the community.

[ericg.]

Great job!!! Very detailed explanation and not mention the great workmanship.

[Froggability]

We installed a great many of these they work well.
Only thing I'd suggest, the penetration instead of almost horizontal we have ours close to the height of condensor, the pipe down-swept and a weather cap to keep driving rain out, and seal up that hole

[juanalzate]

Thanks for the video! Very informative and we appreciate you wearing the safety glasses and gloves

[jacobrobinson]

Thank you for this video. I live in Arizona and I am an electrician. I have 2x 4 tone units original to the home. One upstairs and one down stairs. Downstairs died this year. The lowest quote for one unit to be replaced was $11, 747.84. I’m converting my home to a multi split system. Thanks for all the information.