Installing My Own Mini-Split Heat Pump, DIY

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DavidPoz

DavidPoz

День тому

Let's stay cool this summer, and warm in the winter. This is a DIY Mr. Cool mini-split heat pump. It will save me tons of money $$$ by installing this myself. No need to hire HVAC professionals. This is a unique model because the line set comes sealed from the factory. No special HVAC tools needed. This means I don't need gauges, vacuum pumps, nitrogen, tanks, or even a flaring tool. You will see just how easy this is in this video.
I'm replacing a 7-year old heat pump. It worked well for about 2 years, but was constantly breaking after that. Sometimes it would sit broken for a year while I saved up the money to hire professional HVAC companies to come in and fix the problem. In my area, just getting a company to come take a look at the broken system requires over $500 USD upfront. In total, I've spent over $5k USD on this broken heat pump. This is why I'm so thrilled that Mr. Cool has come out with a line of heat pumps that are designed specifically for DIY installations.
Disclaimer: Mr. Cool provided this unit at no cost. All thoughts and opinions expressed in this video are my own. -David Poz
Video was edited using solar power.
Amazon Affiliate Links:
Mr. Cool Heat Pump DIY: amzn.to/3wcWaHO
Line set Cover: amzn.to/2SPqG8S
Adjustable Wrench: amzn.to/2WhTiK4
Nylog Sealant: amzn.to/2LieqJQ
“As an Amazon Associate I earn from qualifying purchases.”
Disclaimer:
My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.

КОМЕНТАРІ: 2 200
@terencenewcomen5764
@terencenewcomen5764 3 роки тому
Great video and good energy. Appreciated that you had extra little hands on the job site, always makes the job extra hard. You've taken away my concern over a up coming installation, thank you.
@DC-cq5xl
@DC-cq5xl 3 роки тому
I've been watching videos for hours on installing these. I just purchased one, and this was the most informative. Thank you!
@DavidPozEnergy
@DavidPozEnergy 3 роки тому
Your welcome, thanks for watching.
@zainabali9068
@zainabali9068 Рік тому
*Love this unit! Using upstairs in my sons bedroom **Fastly.Cool** and he’s finally able to be comfortable upstairs without me freezing downstairs. Works for more sqft than expected!*
@ku567318
@ku567318 3 роки тому
I like that you were sparse in your comments with useful information. So often the videographer is in love with their voice. Thanks for a good offerring
@workhardforit
@workhardforit 2 роки тому
Same, as much as I want to watch Home Performance's videos his repetitive commentaries are just too daunting...
@fisherus
@fisherus 4 роки тому
Great job! Having all the wiring and stand in place made your installation easier. I just installed an 18K BTU last week and can't believe how quiet it is. They are a solar system dream as they are so energy efficient. I am putting in two more, an 12K btu and another 18K btu that will heat and cool the majority of my house.
@DavidPozEnergy
@DavidPozEnergy 4 роки тому
Nice. Those should work well with your off-grid system.
@hunkenpunken
@hunkenpunken 2 роки тому
Links to them on fx amazon?
@whowhatisthat88
@whowhatisthat88 4 роки тому
I would have to say that I am impressed with the amount of little details that most others don't show like the fittings and explaining simple things that may not be obvious to someone who isn't hands-on looking at the unit but it is helpful for some people who are interested but on the fence on buying one.
@cthorn8355
@cthorn8355 4 роки тому
On a professional installation you wouldn't have 15 feet of copper lineset sitting behind the unit either.
@pcdubya
@pcdubya Рік тому
Excellent video and explanation. I'm debating one now for a sunroom but probably cough up the 1000.00 plus extra to have the lines cut exact and avoid any fubar moments. Glad yours worked out so well!
@elpllc7541
@elpllc7541 3 роки тому
Loved the chuckle at the end!! Great when things go as expected.
@wjthehomebuilder
@wjthehomebuilder 3 роки тому
Thank you for posting the Energy Guide at the end! I was curious!
@fek2000
@fek2000 3 роки тому
Not all that impressive! Barely average/below average.
@starshipgus8578
@starshipgus8578 2 роки тому
Great tutorial video David,I’m ready to install mine,I like the spring coils around the lines to get a smooth radius without kinks,I was wondering about that until you showed it.Thanks.
@rapturebound197
@rapturebound197 3 роки тому
Great job on the install video. ✔ I'm planning on installing a 4 zone Mr. Cool system in my house real soon...and this video was a great help.
@sr4323
@sr4323 3 роки тому
Great video. Thanks a lot. I'm at the wrap and connect the lines stage!
@JOHNCHENSJCA
@JOHNCHENSJCA Рік тому
Awesome video! I installed a 24K unit and planned my run to use all of the 25 ft line set into the center of my house through the attic. For the inside drip, I was able to route to the garage floor. DIY cost was about $3K plus my own labor. Quote from the local AC guys was about $14K. I love the quiet operation. Working with Cielo to diagnose why the app and Wi-Fi connection doesn't seem to work. The remote works perfectly fine.
@allaboutdetails3356
@allaboutdetails3356 Рік тому
How big of a room is that unit in?
@jjohnson2912
@jjohnson2912 9 місяців тому
How easy was it to route through attic?
@Jack2of3
@Jack2of3 4 роки тому
Perfect timing Dave
@patalexander3702
@patalexander3702 Рік тому
Started to day with a mini duckless split air conditioner by Aircon. Reading and watching several Utube videos like yours. Thanks for your information and how to install. You did a swell job. Thanks for posting.
@dabobdiggity5021
@dabobdiggity5021 3 роки тому
Excellent video, extremely helpful. Thank you for taking the time.
@beastfocker
@beastfocker 3 роки тому
Am definitely buying a MRcool ac. Thanx for the install demo
@DieselRamcharger
@DieselRamcharger 3 роки тому
pioneer. same unit. different sticker. lower price.
@deelowjames9719
@deelowjames9719 3 роки тому
BeasTFockeR don’t there trash
@jake8882
@jake8882 3 роки тому
@@DieselRamcharger pioneer???
@MR-uk7iy
@MR-uk7iy 4 роки тому
From Letterkenny to almost every channel I watch on youtube.........Canadians ...........You're very nice people.
@terrymoline8260
@terrymoline8260 3 роки тому
Iam a 37 year HVAC contractor and when Iam bored I love to be a couch critic. But dang you nailed it and Iam so glad that Iam about to retire because that crap puts us put of business. Please check your breaker in the house that its a 120volt and the correct amps . Don't use the old 220v one . Your family is blessed to have you .
@neallyons9515
@neallyons9515 3 роки тому
half of these replys are soo fkn fake lol. Mr Cool is that you?
@hozettes
@hozettes Рік тому
Nice Job. Thanks for stepping us through the install. It looks doable now.
@danielvazquez7482
@danielvazquez7482 Рік тому
I look for things that don’t make sense or (wtf) issues and must confess this one was almost flawless. The only potential issue was cutting the condensation tube too short and allowing it run into the houses foundation. Not a big deal and is nit picking considering the fantastic content provided. Well done!
@latitude67
@latitude67 3 роки тому
Nice roll of tubing behind the heatpump!
@gregh7457
@gregh7457 3 роки тому
thats the way we roll up here
@CoolOldGeek
@CoolOldGeek 3 роки тому
Great job! Glad to see I'm not the only one who does the Charlie Brown face when doing precision work.
@robertlee4172
@robertlee4172 3 роки тому
Cool install. Satisfying when it's completed.
@edwardbyrd7667
@edwardbyrd7667 4 роки тому
Tell Ms Poz. Happy Mother’s Day. You do make it look easy sir. Give us a 6 and 18 month follow up please
@olegsvodyanov
@olegsvodyanov 3 роки тому
He didn't do the air evacuation, his AC probably won't survive so long.
@kevinanderson9752
@kevinanderson9752 3 роки тому
@@olegsvodyanov it's pre vacuumed dumbass.
@deightonharper877
@deightonharper877 3 роки тому
😂😂😂
@earlysquad1098
@earlysquad1098 3 роки тому
Thank you for this Video. I will be installing one my self. Great Job!!!
@lauraoliver8620
@lauraoliver8620 Рік тому
Thanks so much for this detailed video!!! I’m toying with the idea of getting this for my bedroom which for some reason is the only room in the house that I cannot keep cool enough in the summer or hot enough in the winter despite everyone checking everything about my how’s unit. I decided this might be a good alternative. However, I have no idea the vastness of the outside unit and that may be an issue because I’m on the second floor and I guess it would have to sit on the deck outside my room. I guess I’ll have to do some more research but thank you so much for this! Very informative!
@stevepenny2021
@stevepenny2021 3 роки тому
Great video thanks for that. It has given me confidence to fit a system like this myself. Stay safe !
@OzzieAlarcon
@OzzieAlarcon 4 роки тому
I have two Mr Cool DIY units cooling and heating my 2000sqft home and they're awesome. I originally bought a new 4 ton HVAC heat pump system when I bought my home six years ago. I ran the HVAC system up until I installed my two Mr Cool DIY units about eighteen months ago. I have a 24K and a 12K DIY heat pump system and they're freaking great. They cool and heat my house as good as my 4 ton HVAC system using about 2/3 less energy usage. I also have a 12K Carrier mini split system in our master bedroom and a small 9K mini split system in our spare bedroom. But we only use those systems on rare occasions.
@dennycastro1225
@dennycastro1225 3 роки тому
N
@harmonicwaves8375
@harmonicwaves8375 2 роки тому
Are you still happy with this setup? I have to replace a 3.5 ton Trane outdoor that just died, quotes for a new 3.5 are running 8k-13k with a SEER rating 14-14.5 and HSPF of 7.5-8. Our electricity usage is crazy high, very much considering putting in two 24k MR. Cool units for 4k and getting the better SEER and HSPF values but concerned about longevity and reliability...also a 2000 square foot single story house.... Any advice?
@MR-nl8xr
@MR-nl8xr 3 роки тому
Those are some interesting fittings.
@arnoldsmith982
@arnoldsmith982 3 роки тому
i have a mr cool diy outdoor 3.5 ton hvac been working great for 4years so far. its hooked into my ductwork
@philipkeiser4442
@philipkeiser4442 2 роки тому
Looks easy to install. Thanks I'm going to check into one for my garage.
@cortesbrasil8333
@cortesbrasil8333 3 роки тому
I'm from Brazil, and here the instalation way, it's kind different, and some tools we haven't unfortunately
@WiliamBennettwildarbennett
@WiliamBennettwildarbennett 3 роки тому
Oh Yeah! This is a great review of how a good job is done. Am considering getting a MR COOL for my house and this is might be the best sale ad ever 👍
@DavidPozEnergy
@DavidPozEnergy 3 роки тому
It's been working well for my family this spring. Still have to wait awhile for next fall to get some cold weather data.
@pearlkonesky9482
@pearlkonesky9482 3 роки тому
@@DavidPozEnergy THANKS BUD !
@gavinhassett479
@gavinhassett479 3 роки тому
@@DavidPozEnergy is it more efficient heating with the 240V hook up?
@joelwhite4963
@joelwhite4963 3 роки тому
I installed a 18000 BTU Mr Cool DIY 3 years ago in NE Georgia. No problems with it. It will also act as a heat pump down to freezing temps. It is quiet. I bought it via Home Depot and picked it up at the store. You really need some help running the line through the wall because it is unwieldy and needs someone to pull it as you feed it through the wall. Now they have multi-zone DIY packages available. Good warranty with them. I added an AC surge compressor ($70) to the wiring since we have power interruptions with the thunderstorms here in Georgia.
@danpszeniczny9664
@danpszeniczny9664 2 роки тому
I love my mini splits. I do all mine myself. I do have vacuum pump and pressure/vac gauges. I use a “ generic” brand of mini split inverter and all three have never failed me. I have one unit, my second install and very sloppy too, that I have never turned off in 7 years. I helped a friend install a Mr Cool system. They are much easier to install as the learning curve for flaring or brazing and evacuating the line set is avoided.
@robertgregory2618
@robertgregory2618 Рік тому
What generic brand did you use please...
@bman6502
@bman6502 Рік тому
Dan, I'm building a 28x32 garage with a loft above. The loft will be around around 600 sq ft. based on what you've seen with this Mr Cool unit, would you recommend it?
@alexh5894
@alexh5894 3 роки тому
tip: Use some other material you've drilled a hole through as a guide to keep the hole saw from walking around when you don't have a good pilot to hold onto
@anthony5530
@anthony5530 3 роки тому
The leak was probably bottom left of outdoor coil. Those small older Fujitsu’s always split out the bottom in heat mode. Fujitsu had a program for awhile to replace them at no cost.
@wlfgang
@wlfgang 2 роки тому
But shouldn't he use the vacuum pump in the system like 20 mins to check if there is leak before releasing the refrigerant ?
@rockridgefarms
@rockridgefarms Рік тому
Have installed 4 of these units, having the refrigeration lines wrapped in coiled steel to prevent kinking is a nice feature
@johnsmith-dz1nv
@johnsmith-dz1nv Місяць тому
Thanks for making this video. Our local utility is encouraging heat pumps. Looking at the options. This video is very helpful.
@ryno9732
@ryno9732 3 роки тому
They would do so good in south africa with these kits. We have a massive diy community but the market for us is so small. You can buy these kits but they charge you $7000 for the same kit that sells for $2000 in the states. Madness. Wish mr cool would open their own store here
@6thDAY
@6thDAY 2 роки тому
@Orching For the sake of humanity, can you please research before making idiotic comments like this? We need less stupid people on Earth please!
@RenegadesGarage
@RenegadesGarage 3 роки тому
DavidPoz... Awesome video. I really need to get one of them mini split units for my garage. I'm in Florida so it get hot in my garage especially when I'm trying to film a video with the garage door down.
@Supraman217
@Supraman217 Рік тому
You did an excellent job explaining this installation! Thanks so much. I feel confident I can do this on my food truck.
@adrienethomas4367
@adrienethomas4367 3 роки тому
Beautiful job! Very professional looking.
@davechambers2998
@davechambers2998 3 роки тому
I wish we had DIY options here in Australia.
@benssolarandbattery
@benssolarandbattery 4 роки тому
Nice work!! No more noisy, inefficient window AC! And even better that its being powered off grid!
@brucebannerman6848
@brucebannerman6848 3 роки тому
I have two that look like the one you removed,parts and labor free for ten years,only problem was after a power outage and was fixed next day.
@fern284
@fern284 3 роки тому
Bro, men like you are why theres real technicians
@squirehaggard4749
@squirehaggard4749 3 роки тому
Like the ones who couldn't fix his old unit, but charged him $5,000.
@triggertime90
@triggertime90 3 роки тому
WOW. When mine goes I am going to do the same. I have the skills I just did not know there was one especially made for DIY. Thanks.
@SimonSays__
@SimonSays__ 3 роки тому
a little tips for drilling a hole bigger, is to drill a hole in a little wooden plank etc. and hold it firm over the little hole. then keep preasure on the "template" and drill a hole. the little template keeps the sides of the holesaw from wobbling.
@DavidPozEnergy
@DavidPozEnergy 3 роки тому
Thanks for the tip. I'll have to use that next time.
@Froggability
@Froggability 3 роки тому
Or "drywall saw" is way easier and safer
@fitter70
@fitter70 3 роки тому
You can also nest 2 hole saws on the same arbor. Use the original hole saw used to make the smaller hole as a guide for the larger hole saw. Works great.
@josephgraham1065
@josephgraham1065 3 роки тому
I installed an 18k dual zone mr cool unit in my house 6 months ago and it was not the diy type unfortunately, Because I live in Hawaii I had to order through Home Depot and ship to store. I am kinda glad because my tubes are just the right size and the wire is just the correct size. I would suggest that you run a piece of conduit from the end of your piping cover to the electrical box to protect the cable. but mr cool makes a great system I was able to do everything myself including vacuum the pipes and charging as well as wiring the unit. I have zero complaints love mr cool. Saved 2500 from what the hvac company wanted.
@pearlkonesky9482
@pearlkonesky9482 3 роки тому
OUTSTANDING VIDEO DAVID ! VERY PROFESSIONAL, EASY TO FOLLOW, YOU ARE A PRO. THANKS
@stevendumont4156
@stevendumont4156 3 роки тому
That was an excellent video of the DYI MRCOOL mini-split HVAC system. I will be purchasing and installing the 18K variant. I feel far better now to do the install thanks to your valuable inputs
@davidjohnferron2157
@davidjohnferron2157 3 роки тому
Great job at video production. Did you have to check the pressure in the lines with a meter to confirm the system requirements?
@ranat5526
@ranat5526 3 роки тому
I really like the stand you made!
@52bubbabelly
@52bubbabelly 2 роки тому
Great job with all tutorials, ready to get one! Thanks! !
@arth.4196
@arth.4196 3 роки тому
Will install one in my garage, after I call Mr Cool
@rcpmac
@rcpmac 2 роки тому
I like the clear and simple video of your install. FYI I don't believe you should be insulating the the 2 couplings (which you referred to as "valves") together. They should be insulated separately as one is line is going to be hot and the other cold. Bridging them together reduces system efficiency.
@shingw
@shingw 2 роки тому
Having the warm coupling (liquid line) insulated together with the cold coupling (suction line) does not reduce efficiency. What it does is sub-cools the liquid refrigerant before going into the indoor coil, and it also boils off any potential liquid that didn't evaporate in the cooling coil, protecting the compressor. Liquid going back to the compressor could damage it. The reality is that there is very little heat transfer through those couplings anyway, so it's not really a big deal either way.
@claudioarends2899
@claudioarends2899 Рік тому
@@shingw that's in refrigeration cycle. Not ac. There's a difference. As the reverse cycle on heating it becomes a problem in hotter climates.
@eddie4324
@eddie4324 2 роки тому
Great vid thanks. I tried this and now I have more bits than what I started with.
@stevenqualls4938
@stevenqualls4938 3 роки тому
You have great videos. Sure is nice to watch without cursing. Keep up the good work.
@arbert69
@arbert69 4 роки тому
Love the videos man...always great, always easy to follow!
@DavidPozEnergy
@DavidPozEnergy 4 роки тому
Thanks for watching.
@amosleetech2138
@amosleetech2138 Рік тому
We also trying in our country Nigeria in repairing and installation
@ryanfarrell8036
@ryanfarrell8036 3 роки тому
Very impressed, as a HVAC man it’s good to see a unit that most men could do! Great video
@guy-tn2ud
@guy-tn2ud 3 роки тому
The video was nice, I almost wish I needed one of these installed!
@mostlymoparih5682
@mostlymoparih5682 3 роки тому
Nice job. The black gooey tape you put up near the hole is probably more to insulate the copper pipes so they don't have water collect on them drip down the pipes. In our church some squirrels ate away the insulation off the duct work and water condensed on the ducts and dripped into the sanctuary . I am going to look into Mr Cool thanks for the vid. Happy Motoring.
@andreab6271
@andreab6271 4 роки тому
We got MRCOOL 18K, 4 years, they are so GREAT! They have central units now.... found that out AFTER after a bought a goodman.
@mrcwoodworks4523
@mrcwoodworks4523 3 роки тому
How much was it ?
@matthewreed1078
@matthewreed1078 3 роки тому
Goodman built right here in Houston Texas
@peterg.8245
@peterg.8245 4 роки тому
For some pricing reference I just replaced a 3t mismatched A-coil and compressor with a 3.5t for $3500. The old compressor burned up and it was $2k for a replacement without warranty. This was done by a trusted family business whose founder worked with my father when John Zink made air conditioners. FYI the upgraded cooling was recommended because of the loss of shade and change of surfaces outdoors. North exposure, South is a different unit, but they replaced an old creek bed with concrete and we lost a bunch of trees to the widening.
@Executiveinvestments-
@Executiveinvestments- 3 роки тому
you got ripped off. I paid $4,000 for a 5 ton Rheem system a few weeks back.
@108Radisha
@108Radisha 9 місяців тому
Thank you great video, now I know I now I can do it. Here in Santa Fe NM man was asking $2000 to install it, he said it will take 2 hours time, and the reason for asking $1000 an hour was because he is a professional !!!
@txcombatmedic
@txcombatmedic 3 роки тому
Perfect for my new garage! Thanks
@erronellington8800
@erronellington8800 3 роки тому
Great video bro. I have been thinking about getting the mr cool for a while and now you have inspired me. Thank you!
@sydsyd
@sydsyd 3 роки тому
I would have added a cooler to that "coil" line set to keep my beer cold in the summer!😁
@USMCCombatVet4TastyCrayons
@USMCCombatVet4TastyCrayons 3 роки тому
You do realize that one line would be HOT, right?
@denniscoulbourn8161
@denniscoulbourn8161 3 роки тому
Both lines of a mini split are cool, txv is in the condenser
@12345anton6789
@12345anton6789 3 роки тому
Dennis Coulbourn this is also a heat pump. In wintertime both lines are hot, the condenser is inside
@shoechew
@shoechew 3 роки тому
@@12345anton6789 Then you use the cooler to keep your beer from freezing.
@donwhitehead4587
@donwhitehead4587 Рік тому
This makes the 6th Mr Cool install I’ve watched on UKposts. YOURS IS BEST👍🏻👍🏻
@livelarge778
@livelarge778 7 місяців тому
Nicely done, David. Thanks for sharing.
@borissmit7112
@borissmit7112 4 роки тому
I use a Mitsubishi heat pump to warm my house in cold seasons and cool it in the summer when needed. As I live on Norway I had to let it install by a provisional.
@allycias5625
@allycias5625 3 роки тому
Try opening the suction valve first, wait then open the liquid second. The expansion valve is behind the liquid king valve and you could risk flooding it with oil. Also, wait to fire the unit up after supplying power for a bit. Let the compressor warm up and boil any liquid off. You could take a good chunk of the life off the compressor slugging it with liquid refrigerant.
@petermainwaringsx
@petermainwaringsx 3 роки тому
I've checked out the video again and edited my question about purging the system. This was answered by looking at the bit at 8:36. Although it's not exactly like the unit I have the video is interesting. Thanks.
@leonidasbernard9570
@leonidasbernard9570 2 роки тому
thanks for the great video I had my doubts about these units, but you make it look super easy I think it's something I can handle thx
@joeh3767
@joeh3767 4 роки тому
Consider putting a piece of steel wool or something in the condensate tube end to keep critters out.
@EboregOnhzna
@EboregOnhzna 3 роки тому
Or a P-trap on the bottom
@mikeanonymous669
@mikeanonymous669 3 роки тому
Heck...Just look for the tattle tail oil residue with the dirt stuck to it to find the culprit and odds are its a leak in the condenser coil, lineset connections or service valves. ;)
@OcRefrigeration
@OcRefrigeration 3 роки тому
on the next one. coil the extra condensate drain tubing once on the wall to make a P trap / water loop to keep critters out. then snip it off.
@ThePapertank1
@ThePapertank1 3 роки тому
Can't do a p- trap in areas of the country that gets below freezing
@tomsaywer9883
@tomsaywer9883 2 роки тому
@@ThePapertank1 if it’s freezing the ac won’t be on.
@gerrygerry9243
@gerrygerry9243 3 роки тому
I know, these model of fujitsu, the leak will be on the evaporator coil elbows of the left end side under the mounting plastic support.
@lonniemiller7941
@lonniemiller7941 3 роки тому
Thanks this really helped an old guy like me!
@javierc.salazar512
@javierc.salazar512 Рік тому
Great job Dave.
@ACGreviews
@ACGreviews 3 роки тому
Excellent job and thanks for this
@desertmulehunter
@desertmulehunter 8 місяців тому
so are the lines charged or have a vacuum on them before you open them up?
@yopappy891
@yopappy891 3 роки тому
Great video, very helpful and detailed, Thank you. I am contemplating such a project but curious about all the extra refrigerant line, couldn't you have gotten a shorter line and it appears Mr. Cool only sell through local distribution, am I mistaken?
@DavidPozEnergy
@DavidPozEnergy 3 роки тому
This kit comes with a 25 foot lineset. The lines are pre-charged and can not be cut in the field. Mr. Cool might sell a shorter line on the website, but I don't know. You can buy this model through Amazon. I linked to it in the description.
@TheFalconJetDriver
@TheFalconJetDriver 3 роки тому
Yes you can buy a 16 foot line set for $210.00 I spoke with IWAE.com about that on Friday June 12,2020😁🛫
@russgudz4220
@russgudz4220 3 роки тому
As David said, he is correct on the 25ft lineset. It also has a 50ft lineset which you can order. (For 2nd story or longer runs.) The lineset can be shortened. That requires trimming it from the wall and outdoor unit and brazing the shortened length with oxy/acetylene torches. Hire a contractor! He didn't vacuum the lines and just killed his system. Also, the lines are not pre-charged, neither the indoor evaporator. The only precharge is in the heat pump(outdoor unit). I'm an 27yr Hvac contractor.
@herbertwerner2287
@herbertwerner2287 6 місяців тому
I always like the way you explain things even if there are videos about the same thing from others. Good job good install something to think about.
@jkennedy1534
@jkennedy1534 Рік тому
Holy crap David, small world, we are installing a 2-unit MrCool next weekend and this video was the first one to come up! Wooo Go UMass!
@Monsterrello
@Monsterrello 3 роки тому
I bought the exact system and installed it about 3 weeks ago, the only difference is the name, but as we all know they are all made in China. When I was in China they were selling these systems for about $250.00 complete! Some condos there have one per room!
@jimallen2252
@jimallen2252 3 роки тому
What is the name of your unit?
@malikto1
@malikto1 3 роки тому
The only negative to the preparred tubing is that you may have to loop it due to being too long. Looping can accumulate oil which isn't good for longevity. Spend another $200-$300 on a vacuum kit and flare tool and trim the tube to the right length.
@wallaceniebel3369
@wallaceniebel3369 Рік тому
Just learned something about oil accumulation! Thanks!
@pf5658
@pf5658 Рік тому
Good point, but really though how much DIYERS have the money to do so? And besides buying something you’d most like to ever use this one time.
@superfly2449
@superfly2449 3 роки тому
Cool! I need Mr. Cool at my house.
@steveogle2849
@steveogle2849 9 місяців тому
Clean and thorough install! Thanks for the video, I'm going to get one of these..
@nealwright5630
@nealwright5630 3 роки тому
I've seen these and they look like good products. The only drawback I see with this is the leftover piping that you have coiled outside that is exposed to being kicked, stepped on, dented, squashed and other bad things. Seems like they might be able to have the pipe in removable segments so you don't have to leave so much coiled up.
@WeMakeItWork
@WeMakeItWork 2 роки тому
R290 is propane. All refrigerants have a pressure/temperature relationship. Having the same amount of refrigerant in a smaller amount of copper lineset would increase the pressure and cause issues. This would mean that the homeowner would have to release a percentage of the propane into the atmosphere, which would still hinder the efficiency of the unit and also possibly introduce moisture to the system (which can cause serious issues). There's a reason that technicians charge what they do.
@markrouse2416
@markrouse2416 Рік тому
I watched a video of a installation of Mr Cool where the person cut the length down to size. Nothing was mentioned about too much pressure.
@drescherjm
@drescherjm 4 роки тому
The only thing I don't like about this is the excess tubing. I know that is a big part of the DIY friendly part but if I would install I would still want it to be the correct length. This product interests me because my master bedroom is the furthest room from the furnace and it does not get enough air flow for the warmest summer days and coolest winter days.
@Starkchris
@Starkchris 4 роки тому
The tubing can be purchased at different lengths depending on application
@delucain
@delucain 4 роки тому
You can choose how much tubing out of a few selections. You'll likely still have a little extra, but you can get it close in most applications. It looks like he could have gotten about 10-15' less tubing and been okay.
@billssolarpowerandgardenin1016
@billssolarpowerandgardenin1016 4 роки тому
drescherjm if you know how to solder braze or flare tubing you can shorten the length yourself. Only drawback is you’ll need to attach a vacuum pump and evacuate the lines down to 500 microns. I bought Samsung’s for the house in the Philippines and they wouldn’t cover the warranty if I installed it, even tho I showed them my universal license, they insisted I pay them to install it. Well, they just opened the liquid line side valve and cracked open the vapor line fitting and flushed the air out. Not ideal but it works in a pinch. If you purchase a more traditional brand that has 1/4” and 3/8” male flare fittings then you can make your own flares fittings. Always be careful to cut tubing slowly and incrementally so as not to curl the metal inwards too much. Debur just slightly(over deburing thins out the metal)with tubing pointing down so flakes fall out not inside tubing. Then flare the ends (after putting on the flare nut😝) and again flare slowly so as to not fracture the copper. Copper will only bend so much so fast without cracking. Teflon tape and thread sealant are useless on flare fitting. The flare on the tubing is the surface that mates with the male flare. A copper flare washer helps with leaky issues. Lining up the connection with straight tubing and fittings will give you a leak free joint as well. You can install a flare union after shortening the line set using the dummy fittings shown in David’s video here.
@drescherjm
@drescherjm 4 роки тому
@@billssolarpowerandgardenin1016 I have hundreds of hours of soldering experience with copper pipes but not so much brazing. Last time I did that it was the 1980s and I was in high school. Anyways the idea of using one of these units in my situation would be probably the third or fourth try after the others failed. Just got to get time to tackle the problem..
@kellypophamjr5777
@kellypophamjr5777 4 роки тому
There is also a zoning option for conventional central forced air systems. That may help with getting air to poor locations. Ask for a free quote for a zoning system from your local HVAC company.
@BAHRAMCR
@BAHRAMCR 3 роки тому
great well designed unit.
@guerradan1958
@guerradan1958 3 роки тому
I have two for garage that doubles as my work shop. Summer is a killer trying to build things in. The 16,000 btu would take off my needs. Wonder if they’ll sponsor me. I guess I should make UKposts vids of what I do for fun and some for building stuff for the house and for friends. I love the ease of installation and the extra feature of being able to operate it from the phone. Thanks
@josephferradino3098
@josephferradino3098 3 роки тому
the extra line set should be raised up and set so it coils downward for the oil.. you dont want the oil to get trapped in the loops.. the oil should be in the compressor where it belongs..
@patrickpk6299
@patrickpk6299 3 роки тому
I saw that too...coil should always be sloping up, not down then up.
@johnhogan3810
@johnhogan3810 3 роки тому
How is that possible without the ability to cut the lines to length????
@derek361
@derek361 3 роки тому
Joseph Ferradino I ran mine down the outside wall and then length wise along the bottom, then set the compressor and wiring. No coil on mine
@johngunn879
@johngunn879 3 роки тому
How do you get away with not vacuuming down the system before charging it?
@chetmyers7041
@chetmyers7041 3 роки тому
@@johngunn879 All the components (even lines) come with charge in them, thus no air or moisture. Special fittings hold pressure inside, yet open when components are screwed together.
@timeyre9985
@timeyre9985 3 роки тому
great video, you make it look so easy, i think i might just install one of these as they also work in heat mode
@grandacres427
@grandacres427 9 місяців тому
Classic How To - Superb editing - I am saving this for future reference - Excelante !!!
@JouJouMaMaDolls
@JouJouMaMaDolls Рік тому
Will be renovating a old home and really dont want to do duct work because It's so loud and unhealthy. Looking into alternative heating/cooling systems. Thanks for the video.
@Michael-ig8ne
@Michael-ig8ne 3 роки тому
lol at the 12' of rolled copper line behind the unit
@MARKWILLIAMS-tm4rf
@MARKWILLIAMS-tm4rf 3 роки тому
Leaving a monstrosity of copper refer lines in place is no good at all! Especially on small tonnage systems as this bloke has done.
@OzzieAlarcon
@OzzieAlarcon 3 роки тому
@@MARKWILLIAMS-tm4rf These systems are designed to work as is and they do just that. They work great so you clearly don't have a clue....
@neallyons9515
@neallyons9515 3 роки тому
@@OzzieAlarcon Mr Cool is that you?
@makesmefeellikeatalltree8250
@makesmefeellikeatalltree8250 2 роки тому
@@MARKWILLIAMS-tm4rf side note: does that copper tubing attract metal thieves?
@michaelamick4887
@michaelamick4887 3 роки тому
Theoretically the coiled up electrical cable forms a resistance 'choke' with AC power. The magnetic fields created around the individual wires interfere with each other when looping causing this resistence and needing higher amps than neccessary. Your tested amps was right near the max of 10amps if I read the data sticker correctly. Unless you wanted to allow moving the exterior unit later you could test this out by reading amps, shortening the cord, reattaching then rechecking the usage. If temps are same as before the line should use less electrical energy when done. This lessens the heat in both fan & compressor motors when running. I have electronic degree and as a home inspector I always advised shortening coiled up AC wiring to save useful working life of appliances. What convinced me of the practical side in this was one day found a coiled 50' extention cable that melted itself together into a solid plastic coil. That definitely made an impresion on me.
@WilliamSymionow
@WilliamSymionow 3 роки тому
Your over thinking it buddy. I feel bad for the people you advise, money not well spent for most (99.99%) of properties out there have far worse things that need fixing.
@michaelamick4887
@michaelamick4887 3 роки тому
@@paulcrescenti5581 if the power is routed to the exterior unit 1st, that would make a large reduction in the reluctance (ac resistence) issue. Of course rethinking your example, his meter showed 10amps of current flow. That is extremely high for just the interior fan. In rethinking my advised amperage test, it would be easier by simply uncoiling & spreading out the wire before re-reading the current. If amp drop is more than 10% it is well worth shortening the cord.
@michaelamick4887
@michaelamick4887 3 роки тому
@@JDub-mi7fs thx, for sharing, your experience makes an excellent example of unexpected consequenses of coiling wires.
@michaelamick4887
@michaelamick4887 3 роки тому
@@WilliamSymionow true, if that were the extent of my advice. Realize even 10% reduction in watts = greater relability for all components effected. Most designs are now manufactured with thin margins using cheapest possible components. One service call minimally costs home owner several hundred $. Shortening cords cost $2 and 5 min.
@abdullah_q8171
@abdullah_q8171 3 роки тому
Nice you work by your own hand 👍🏻
@whereman1199
@whereman1199 2 роки тому
Very cool, no pun intended. I am going to look into this product for my garage.
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