Della Mini Split AC Installation Step By Step 2024 | Total Installation 

Update: Followed your lead with the pump, and I wasn't getting a vacuum to hold. So I tried the open the low pressure allen screw a little and lo and behold, that exposed a leak at the upper 3/8 fittings. Not torqued enough. Once I tightend that, you could hear the difference in the pump sound. Getting super cold air now! The soapy water didn't show anything. Very good video. I wasn't sure, because the manual shows using the insulated tape at the indoor unit to wrap all the way to the outdoor unit. Which imnplied taking off the initial foam that comes with it. In either case, I will leave that foam on and I will wrap the whole length with the insulating tape. The manual also discusses using appropriate torque when tighening the pipe nuts. 1/4" line; 13.3 to 248 ft lbs. 3/8" line: 22.1 to 25.8 ft lbs. And applying the putty to seal the tube at the wall on the outside. I also found it easier to connect and clamp the indoor unit wiring and then just snake the rest of the wire out the tube. Also, from my safety box for power, I used flex conduit with a flex conduit plastic fitting. The drain tubing, which is the same as was on my MrCool that I'm replacing, I can tell you will not hold up for long in the TX heat in the summer. Within 2 years, it was so brittle it just fell apart. Instead I got some 3/8" acrylic tubing from Home Depot, used pointy nose pliers to stretch the end some to fit snugly on the section coming out of the inside unit, that was still sound. That stuff can take a licking. I also found the wall plate, vs the MrCool version, is very delicate. When I put the indoor unit on it, the top right finger bent out about 1/4". The Mr. Cool uses about a 2 foot lip at the top that in the middle and very sturdy. So now I have to deside to I want to take it down again and add more screws to make it more sturdy. Or just leave it as is. It's not going any where and I might just leave well enough alone. In spite of the same rating as the MrCool 12k, the Della units are a lot lighter. The outside unit is much narrower and the inside unit is lighter and slightly smaller.

I just finished the install of a 2 ton della mini split. And it works great, thanks to you my friend! When you come to LA, I’ll buy the tacos and the cervezas. Thank you sir

I installed the 1800 btu unit iin my 20x30 shop in January. I'm very happy with it. I used a pvc downspout to cover the lines. Split it with a utility knife and you can spread it aesily and it will close right back up.

Thanks so much for sharing!! Just installed our Della 18,000 btu mini split after watching your video multiple times and it is Awesome!! Thanks for going over everything so well! I did find out after I pulled a vacuum and made sure it was not leaking. It worked really well to just go ahead and disconnect the vacuum line before I let Freon into the line. It made absolutely no noise and let nothing in or out. Thanks Again!!😊

Thank you for a detailed installation, that was worth watching a longer than usual video.

I was planning to do a split unit install, this came very handy.

Just replaced a Pioneer 18000/18 seer with a Della 18000/22 seer, I could never get a response with Pioneer, bad evaporator motor, then fried board due to wires pinched at board door from factory, Della very well built, made Pioneer look like tin can junk, Della almost the size of a 24000 due to better seer rating, same price and a promo was in effect, WiFi and better remote functions.

Very Nice one. Well done! all the way from Bulgaria

I’m seeing more and more people doing there own ac work now and learning how to solider the connection on big homes units

Very well illustrated. Thanks, dude.

Why are you using soapy water to detect a VACUUM leak? There would be no bubbles, right?

Interesting that Della precharges the outdoor unit with enough refrigerant for the entire system and you needed to vacuum down the lineset.. The other one you did had a precharged lineset and both units. Did this give give you more or less confidence that the lines are free of contamination from the air?

Why do you have to turn on the gas and check with soapy water? When the pipe is disconnected, the air conditioning gas escapes to the outside, which pollutes the environment. If the vacuum does not decrease within 30 minutes, the system is sealed!

Pro work, Good stuff.

What are you going to do with the excess? I ordered a 2 zone mini split from Della, and main floor is only about 8’ from where the outside unit will be.

Great video Seth

Thats is a good video i normaly i install those ac in 30 min it i work with allot of ac frome midea or gree

Ive noticed a lot of people are using micron meters during the vac these days - is there a reason why you don't?

When you make the bends with the copper do you just do it by hand? Thanks.

Thanks for the details!

I have the same unit and about to install it. At 11:35 you pull down the tabs on the bracket and I don't see the purpose of these tabs. I don't see where they go into the inside wall unit. Can you please explain this?

I like to make new flares, also trim lines to size, I never really liked factory flares, usually kind of ragged.

I've been debating which mini split to get for my 10x20 detached office shed (cathedral ceiling), got a few questions for you Seth: 1. Did you run 12ga wire? What size breaker? 2. Any reason for Della over something like Senville? I don't plan to buy DIY kits so will end up buying the pump and adapter like you. 3. Thoughts on 9k vs 12k btu for my space? I plan on going 240V model either way.

@sethcraftworkshop No help with the tabs? Really curious as to why they exist because they seem to serve no purpose and you pointed them out like they do.

what is the diameter of the hole in the wall?

On your gage lines. Do I need to remove the valve stem?

could I connect this to a standard 110V indoor outlet? I can’t use a mini breaker outside

So needle moved from -30 to right below 0. Is that an issue?

Why do you need an adapter to hook up the low side? Will the line from the vacuum pump just hook up correctly?

Mine is showing a P2 error message and not sure what to do. Not cooling and fan stops spinning

No nitrogen test ?

It is the same as mine, sold under Elit brand, but true is, this it TCL from China!

Did you add any freon

Not a complete install shown, you left out the wiring at the breaker…

hurts my eyes to look at this 😪

You edit out all the minor installation difficulties anyone doing this will encounter. This deletes your solutions and possibly attempts. That footage would be the most important for a person doing this for the first and likely only time. You had all that important info. Your video has much less value.