Home » How to Install a Ductless Mini-Split Air Conditioner | This Old House new a/c technology

How to Install a Ductless Mini-Split Air Conditioner | This Old House new a/c technology

by LKJHGrTfghDgh



This Old House plumbing and heating expert Richard Trethewey explains how to install a mini-split air conditioner. (See below for a shopping list and tools.)

Images related to the topic new a/c technology

How to Install a Ductless Mini-Split Air Conditioner | This Old House

How to Install a Ductless Mini-Split Air Conditioner | This Old House

Search related to the topic How to Install a Ductless Mini-Split Air Conditioner | This Old House

#Install #Ductless #MiniSplit #Air #Conditioner #House
How to Install a Ductless Mini-Split Air Conditioner | This Old House
new a/c technology
See all the latest ways to make money online: See more here
See all the latest ways to make money online: See more here

related posts

47 comments

Ronnie McCurry 24/09/2021 - 1:02 Chiều

Can you run the line set out the side of the air handler and then bring it down and go to the outside to use up some of that length so I won't have to flare it?

Reply
In this day and age 24/09/2021 - 1:02 Chiều

How did you connect the electric to the indoor unit with it already mounted on the wall

Reply
fizwin1 24/09/2021 - 1:02 Chiều

umm 5:41 that ground looks like crap, sorry

Reply
Russell Cool 24/09/2021 - 1:02 Chiều

Russell 79TuLlpLN

Reply
Russell Cool 24/09/2021 - 1:02 Chiều

Russell 79TuLlpLN

Reply
Don Breda 24/09/2021 - 1:02 Chiều

Can anyone tell me what the little white roll of cloth is for that comes with these Mitsubishi head units? It's in the bag with the manuals and the remote. I've had two different contractors install these at different times, and both just left me with them. I have no idea what to do with them.

Reply
Brian Haney 24/09/2021 - 1:02 Chiều

Not a DYI.

Reply
TopRankedKilla 24/09/2021 - 1:02 Chiều

Do you have a video on how to repair them? Such as lost of cold air.

Reply
qaz3000 24/09/2021 - 1:02 Chiều

My dad wanted to get a small portable AC and I said that now adays they sell real split air conditioners for under 1000 bucks and that I would gladly come and install it with him. This video confirms what I imagined what the install would be like just looking at the unit. If we get the electricity ready in advance Im sure we can start after lunch and be ready by dinner time.

Reply
Aaron Soto 24/09/2021 - 1:02 Chiều

This guy made that complete installation look soooo Easy…..hes probably installed like 100 of these.

Reply
Jon Casta 24/09/2021 - 1:02 Chiều

“Idiot proof”? Im colour blind and have trouble distinguishing wires. Perhaps the only idiot is you thinking everybody can see colour.

Reply
ckshe28 24/09/2021 - 1:02 Chiều

How much does all this usely cost

Reply
Fngmail Lngmail 24/09/2021 - 1:02 Chiều

Good video but Not quite DIY ( for me ).

Reply
thanh tran 24/09/2021 - 1:02 Chiều

Ososksossksox

Reply
Tony Nanni 24/09/2021 - 1:02 Chiều

That’s some pitiful electrical work. Puts the stranded wires under a screw without a crimp on connector
That is that not how seal tite conduit goes together either. You don’t just push it on. He also didn’t valve off the vacuum at the port. No sleeve or sealing of the hole. No proper tightening of the flare. Overall butcher job. This is why you should do it yourself.

Reply
Anthony C 24/09/2021 - 1:02 Chiều

Nice work gentlemen.

Reply
JG M3 24/09/2021 - 1:02 Chiều

When did the communication wire get fished through the carflex/liquidTight?

Reply
Peder Strand 24/09/2021 - 1:02 Chiều

There's an old saying, "A person that represents himself in court, has a fool for a lawyer." Have a professional install it!

Reply
Angel F 24/09/2021 - 1:02 Chiều

How much will this cost cause summer in Texas is no joke

Reply
Patty Harris 24/09/2021 - 1:02 Chiều

Thanks
Just what I wanted to know.

Reply
Thomas Polinze 24/09/2021 - 1:02 Chiều

I may be wrong but for some reason I feel the split system is less efficient could someone possibly correct me if I'm wrong?

Reply
Old Andy 24/09/2021 - 1:02 Chiều

You absolutely want to use a pipe bender on that soft copper. If you're a diy person DEFINITELY do NOT try what he just did on that copper line.

Reply
Epic Skoolies 24/09/2021 - 1:02 Chiều

Easy.

Reply
Shakeel Muzaffar 24/09/2021 - 1:02 Chiều

Hello
Dear ,sir we buy a month ago new split unit, model no, 18hfaa b, sir our indoor bottom sticker printed r410a refrigerant but outdoor unit print r32 refrigerant, i don't know how is possible, dealer mistake ?,
Is that ok or we need to change outdoor r410a refrigerant same as shown and print on indoor unit, please answer,

Reply
Dodger Town 24/09/2021 - 1:02 Chiều

One compressor for 2 vents???

Reply
The Knight 24/09/2021 - 1:02 Chiều

Do you recomend insulating brick walls for better faster cooldown of the designated room???

Reply
Katie H 24/09/2021 - 1:02 Chiều

I would love to have a professional come install one of these in my shed, but I assume they would need a permit and then the city would know my shed roof is taller than ordinances allow and that I put up a 7 foot tall fence without a permit. = (

Reply
Dan Silva 24/09/2021 - 1:02 Chiều

I've been considering doing this as well in my garage, is it necessary to insulate and drywall the exterior CBS wall?

Reply
salim shaikh 24/09/2021 - 1:02 Chiều

Outdoor unit should be slightly above the indoor unit level….is it correct??

Reply
Danielle B 24/09/2021 - 1:02 Chiều

I thought you just mounted the unit on a wall and that's it. Obviously that's not the case.

Reply
Kevin 24/09/2021 - 1:02 Chiều

Where’s the nylog glue on the compression fittings?

Reply
Qianqian 24/09/2021 - 1:02 Chiều

Reply
joe macalpine 24/09/2021 - 1:02 Chiều

The HVAC tech was on point !

Reply
masaji odagaki 24/09/2021 - 1:02 Chiều

Mitsubishi air condition is best choice , not LG

Reply
Mr Escamilla 24/09/2021 - 1:02 Chiều

Didn't show the plumbing connection to the outside unit, or routing electricity from breaker to unit or what size breaker fuse was needed.

Reply
Betty Smith 24/09/2021 - 1:02 Chiều

After watching a couple of TOH videos about mini-split systems I now know why installation costs are so high. That is a lot of work putting in one of these systems and what it means to have qualified installers. Thank you.

Reply
Karram Hussain 24/09/2021 - 1:02 Chiều

good work
i want to work with u me also ac technition

Reply
OthmanEmpire 24/09/2021 - 1:02 Chiều

Thanks for the video =)

Reply
Andy Canniff 24/09/2021 - 1:02 Chiều

whats the approx cost of this job?

Reply
Warren Mundell 24/09/2021 - 1:02 Chiều

Most warranties aren't covered unless you get an hvac person to vacuum the lines. There are some models for diy that don't need vacuuming. The outside hole must be 1/2 inch lower than inside so water won't freeze in winter. You have to know what size circuit breaker to use. Should have put special lube on fittings. There are better videos.

Reply
bigsid1984 24/09/2021 - 1:02 Chiều

Installed one my camper. Dummy proof. Plus they come pre charged.

Reply
Yuna Myers 24/09/2021 - 1:02 Chiều

Awesome!!!! Thank you guys! God blessed you☺️

Reply
Jeremy Cornwell 24/09/2021 - 1:02 Chiều

Now install a incandescent light bulb, middle of your home.

Reply
robotman 24/09/2021 - 1:02 Chiều

i had a multi-unit system for my row home here in philly. Gettting it installed professionally is what makes it so expensive. But ducts weren't an option cause it would have required all the walls to be removed. Its great though, can even use them in the winter if youd like. They heat as well as cool

Reply
John Barton 24/09/2021 - 1:02 Chiều

How did you bend the line coming out the back of indoor unit? Do you just grab the line and turn it 90 degrees? Hopefully it doesn't kink…

Reply
Altyn Dom 24/09/2021 - 1:02 Chiều

That hole has to be 4 3/4 inches away from the bracket not right next to it. And what about that piece or rebar in the hole?

Reply
Abed Majidi 24/09/2021 - 1:02 Chiều

Shouldn’t you open both valves at 6:10 one for liquid line and one for vapor line

Reply

Leave a Comment