Whole House Air Conditioner and Heating System Installation. MrCool Universal, Is it a DIY Project?

I demonstrate how to install the MrCool Universal central heat pump split system. Well, I show how I installed the air conditioner in a Do It Yourself style for the most part.

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I was able to install the whole house air conditioner system however the project did require assistance from profession HVAC technicians. The DIY project required some basic tools including wrenches and power tools and also some specialized HAVC components. The ac and heat system is working great now and I learned a lot during the installation process. I am excited for the efficiency performance of the MrCool Universal and look forward to my utility bill savings.

[jankzsbabymama]

Watching this so i can have my husband do it when we move to Japan 😂

[skimark]

I was cringing when you tightened those air handler lines without holding the valve, At the end I saw why.
Great video though, you give me confidence on my install.

[juansolis]

It's a great how you can still film as the fan was running in the beginning of the video.

[GlenHoffmanX]

Looks easy. I know who to call when I need a new HVAC unit.

[louisvenezia]

this is the video that's actually useful

[jonhcontreras]

U hv great ambition & courage.. good 4 u😊

[chuckvaughn]

I also found a company who works with mini splits and they were willing to come out. Spent an hour with me for about 110 bucks

[bekind]

I wish this video was available when I installed a similar system back in Dec of last year. I had to find info the hard way, but I did it. The heather worked great and the AC couldn't be any better.
I still learned a lot from this video... thank you for sharing.

[joebickers]

Nice install. Im going on 3rd yr with mine. Love it .we just had during Christmas weekend the coldest here in a long time. 50/60 below wind-chill. The mr cool universal 18/24/36. Kept the house at 73 degrees. No electric heat kit assist, house insulation not so great working on that. Im still pretty happy .

[Kgashuk]

When I did my install in 2011 I had an old Trane 3ton that still worked. The indoor air handle was what was shot. So I pumped it down and sold the entire thing with the R22 still in it for $500. Was a win win.

[mathehack]

Awesome video, this is very helpful, i was considering one of these units particularly for the pre-charged line-set. Based on your experience I'm seeing that there are benefits to vacuuming the lines before releasing the refrigerant as it's a good check for leaks. Which you won't get with this system. Also it's then possible to reuse the existing line-set which is a considerable amount of work/expense.

[airbluehvac]

GOOD job overall, better than some licensed companies do
Hope these advises will help you to make new video on corrections and help your system last 30 years! :
1. forgot u-trap at drain line. it is negative pressure inside the coil(blower) and it will suck sewage air in through the drain pipe, also airflow inside drain line will prevent it from draining properly.
1A. vent on the drain line should be couple inches higher than the outlet port on the coil. water sensor has float in it, so if drain gets clogged water will just start leaking from drain vent before water sensor triggers.
2. also should've put surge protector by the units or inside electrical panel. it is INVERTER unit with sensitive electronics.
3. these units are charged by weight using scales!. tech with refrigerant jug in the video doesn't have digital gauge to read proper readings to charge by superheat/sub cooling, but again should've recover all refrigerant, pull vacuum and charge by weight using scales!!!!
4. use pipe wrap UV tape 10mil and wrap outside lines for insulation to last longer

[cbsites]

Great install! I'm just about to finish my installation in the next day or so. I had the help of a pretty skilled handyman who came in for some of the heavy-lifting and did the hammer drill for the 3 1/2" hole through brick to the basement joist space just above the basement door. He also helped with removing the old A-coil on the old gas furnace and helped me lift and fit the new A-coil in place. I'm installing the Universal 3-ton compressor and Universal A-Coil with the 25ft pre-charged line set. I've watched nearly every youtube video on the subject, yours too. My end result will be a dual-fuel heat pump configuration (hybrid heat pump) which should provide a very efficient system even in the coldest and snowiest of deep winter Jan-Feb. Everything has gone very well and smoothly until we unrolled the 25ft Line set. The smaller of the 3/8" line was easy to work with, but that 3/4" line set is like wrestling a 25ft 200lb anaconda! For small bends and general shaping, the 3/4" piping requires a lot of muscle. As it turned out, the 3 1/2" hole in the brick was too small for the two sets to go through together, so I drilled out a second overlapping 3 1/2" hole and trimmed it up to make an over/under 5 1/2" tall, 3 1/2" wide oval. Then I had to feed the 3/4 line set first, then the 3/8 line set, bend it down, then to the left, and then up into the compressor from the side panel of the compressor. Getting the line set to the proper length and bending to fit through the side panel with the electric and thermostat wire, and then up to the quick-connect adapters is a feat of strength! What is really challenging right now is simply lining up the 3/4 line set to the quick connect to hand screw the two together. My arms are like silly-putty after wrestling the tubing. So I'm taking a break right now. So how did you do it? You make that look so easy.

[Kgashuk]

You should be good topping it off if the system still had pressure in it. In theory you should pump it down and draw a good vacuum before putting the refrigerant in but these systems seem to handle not doing that better than most. Also charging it in the winter is hard than the summer. The problem with the VRF type systems is getting a good reading on refrigerant. I would say just get someone to come out and check it in the summer. Also, my LG has the option of getting installer software which works a lot better on these systems that running gauges.

[proxybox]

On my way to install now. Great video. Too late now but the blower motor slides out easily too. I didn't know the A coil could be removed so it was a bear to get the air handler into my attic. I had to use a chain hoist.

What type of material did you use for the supply side plenum box you made? It doesn't look like sheet metal. Thanks.

[Optimization_Coach]

Wow....wasn't aware a Mr Cool unit had a central AC option vs minisplit only. Should be much more efficient while still using the existing ductwork!

[khaisy]

Hello. Thank you for the video . Please 🙏 if you could answer this question for me . When you were speaking behind the condenser. Did you have to reduce the condenser sound in post. How loud is condenser. Much appreciated

[SOUTHCOST]

Ok just watched this video from your other video and like I said after connecting the refer lines if you would have pressurized with nitrogen, you would have found your leak in the A Coil. Fixed it then pulled a vacuum (regardless of brand new or not) then open the condenser valves to release the refrigerant into the system.

[jsnrich]

Did the line set or hvac come with m1 m2 flat adapter, if sold separately do you have a link?

[edwardgrier]

Excellent video, thank you. Tightening all of the lines are you saying they need 50ft.lb torque for each piece?