How To Install Your Own Central Air Ducted System | Mr Cool

Sections
0:00 System Overview
1:30 Tools Needed
2:30 Mr Cool Hyper Heat Specs
5:00 Condenser Concrete Pad
6:00 Plan For Ductwork
8:03 Flow Right 21" Stand and Plenum
10:25 Positioning The Mr Cool Unit On The Stand
13:04 Cold Air Return Ductwork Fabrication
17:45 Bringing Old Ducts Into The Mr Cool Ducted System
30:34 Finished Ducted Work Results
32:00 Wiring A 50 Amp Circuit For Outdoor Mr Cool Condenser
41:45 Wiring A 15 Amp Circuit For Infoor Mr Cool Air Handler
44:30 Installing a 3/4" PVC Evaporator Drain Line
48:05 Installing No-Vac Mr Cool Refrigerant Lines
55:00 Installing Thermostat Wires and testing Mr Cool Hyper Heat Unit

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DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.

[petermichaelw]

Dude, first time watching your videos and I'm very appreciative of your product here. You are explaining essentials without going down rabbit holes or blathering on with personal stories. You are putting the camera in the right place. I'm beyond impressed, Sir. A DIY video king here, folks. RESPECT.

[alanrushforthp.e.]

Very much appreciate the video!! I am a GC with some experience in HVAC work. Your video answered pretty much all questions I still had after reading through the manual. For example, after reading the manual, I was not 100% clear about the power to the indoor unit. You made it crystal clear how this indoor unit is powered by 220Vac (which is unusual). I also appreciated the details on constructing the filterbox and filter rack - which of course was not in the manual. My only suggestion on the install might have been to use S-cleats on the corners of the custom ducts and that I believe would have left fewer sharp edges and also made the boxes a bit more air tight. Thank you for the excellent video!!

[ricardomg]

What a great channel, I usually don't leave any comments but man you did a great job and excellent explanation thank you

[b-gill]

You have inspired me to do install this system in my 70 year old home. Aweseom video.

[leehuff]

Omg, best start to finish video on MrCool . Had trouble understanding the wiring. Now i know.

[netsplit]

Doing an install of the 4 ton version of this system. One thing I learned is finding terminal rings that fit the narrow tight terminals is tricky. What I eventually figured out is I could use a hammer and a concrete slap to make them oval terminals which fit!

[RC-Heli]

You did a really good job on this sir! Thanks for sharing! You sound like Mike Festiva talking. He's a youtuber who built his on Mule to run around the property, articulating dump truck to move dirt on his property and a saw mill to saw wood from the property. And on and on it goes!

[utubepro]

I do hvac and I must say
GREAT JOB !

[jpenn]

Wow, what a great video you just dropped. I'm sure it will help a lot of people in the months to come. I would suggest that you seal the ductwork you fabricated. Something like ShurTape 686 metal on metal tape would work. This will do a great job of closing all those openings and will provide cooler air to the home and you won't be sucking warm air into the conditioned supplies. I would have added a condensate float switch as an emergency cut-off when the condensate line stops flowing. You should have also added a high-quality surge protector to the outside unit. These units are run on sophisticated computer control boards and are sensitive to electrical fluctuations. I've been a fan of the Ditek Kool Gaurd 2, but most other brands will help protect your investment.

[noway]

Your videos are easy to follow and very informative. We just installed a Universal 4-5 ton Mr. Cool in a remodel for my son and daughter in law. Big help! Thanks.

[jkia]

15 years ago our hvac company built custom boxes out of plywood for the return air to enter and for the air handler to set on. Maybe cheaper than buying a kit online. Also don’t forget a good sheet metal contractor will make the box for you as well.

[utubepro]

This guy make professional hvac guys look bad😊

[louismarquez]

ACIQ also has the very same system with hyper heat and the same size. I just finished installing mine and shes a beauty very quiet and cools plenty and heats very quickly.

[richlikeg]

You can also put some refrigeration technology nylog on the flares for extra protection against leaks.

[mrsayao]

Great video! I've watched a few DIY HVAC videos in preparation for tackling my own job. One thing you should do once the box/ducting is all done is use the sealing paste/glue on the inside of the joints and then tape the outer joints where you can't put paste.

[emiller]

Nice job. Looking forward to seeing how well it heats without heat strips.

[michaels]

I've used the 3M silver tape (3350) to get a tight seal on my duct work. No air leaks nor whistling.

[ARepublicIfYouCanKeepIt]

I replaced the original 20+ year old central A/C system at my mother's house with a Mr. Cool Universal series unit. The entire experience was great, however, I did opt to cut the precharged lines in order to have a cleaner installation without unsightly loops of excess line. Again, every installation of this type is custom. This was just my preference. A fast and affordable service call to vacuum and recharge the lines was all that was necessary. (Note that I had this done *before* opening the valves on both units. That way only a minimal amount of refrigerant was needed.)

I mounted the exterior unit on the wall, rather than the ground in order to keep the unit cleaner.

The only criticism I have for the Mr. Cool units is the line set insulation. This quickly broke down in Central Florida.

All-in, the replacement cost me ~$3, 500 (less than half of the lowest bid from an HVAC contractor). The unit is whisper quiet and consumes half of the electricity of the original unit.

Lastly, this unit has no problems both cooling and heating my mom's home (no resistance heating strips installed).

[HBSuccess]

Your best video yet, and the organization of your affiliate links is genius.

[harblindersingh]

Thank you very much for the video. We were able to successfully install our Mr Cooler Heat Pump. Great Job, keep it up.