DELLA Mini Split 17 SEER2 9000 BTU, Works with Alexa and WLAN, Cools up to 450 square feet, 208V-230V AC & Heating with 3/4 Ton Preloaded Heat Pump

Very satisfied with our DELLA 18000 BTU mini split AC. Despite Della saying this is a non DIY unit, probably due to it being a 240v system, requiring a new 240v breaker install on the service panel, and also a system that needs to be vacuum purged before first use, I was able to self install this unit with no prior mini split experience. That's not to say I had no DIY experience. So, if you have done some prior DIY home improvements and can make sense of basic wiring then you may be able to DIY it yourself. That said, there are a few tips I would offer. First, buy yourself a torque wrench able to do at least 60 Nm torque along with some crow foot wrench heads up to 1" and use it as suggested in the Della instructions. There are a lot of YouTube videos about DIY mini split installs out there where guys say no torque wrench no worries just tighten it "real good". It pays to get the torque right. The issue is mostly refrigerant leaks if the connections aren't right. Do it. Second, buy or borrow a HVAC vacuum pump and gauge set. You have to vacuum the system before releasing the precharged refrigerant. There is some confusion out there about the pre charged coolant. Mr Cool systems pre-charge the tubing, Della precharges the compressor. You have to vacuum a Della system. Third, get a tubing bender and flaring kit. The lines are "long enough" for most average installations. But the 1/2" copper tubing does not bend easily and is easy to crimp and to make useless if the ruined bend isn't cut out. You may need a shorter line and cutting the tubing, re-flaring it, and bending it here and there may be necessary. Trying to loop or snake the 1/2" copper tubing without a bender is risky. Luckily I had or could borrow all the above tools. But I can see from having installed the kit that not having that stuff would be an issue. Lastly, make sure you install a disconnect box by the outside unit. So, all in all, not a big deal to install this unit. Worked great immediately. Cooling our garage without a problem. Also, although most guys think any wiring from the panel has to be Romex we used 12AWG copper stranded without any issues. The Della interconnect is only 16AWG stranded, so 12AWG is prob overkill. The unit draws a max of about 12 amps and recommends a max 15 amp circuit breaker. Although the unit has a count down timer, in other words you set a number of hours after which it will turn itself off, it does not have a scheduling timer that allows you to set a daily routine for on/off, temp, etc. That is one feature I wish DELLA would add. Although there is a companion phone app for controlling the unit via WiFi I did not use that app. My only complaint is the info supplied by Della on wiring the outside unit could be more helpful. Although schematics are included it would be helpful for the manual to show a photo or illustration of the completed wiring block and which wire from which cable goes where. It's obvious, after you have it hooked up. But having a as completed illustration or indication of which block is for the interconnect and which is for the mains and what is intended would be helpful. All that said, the DELLA 18000 BTU mini split is a great value at the price compared to what, to me, are the very over priced Mr Cool systems. It's super quiet inside and outside and the inside unit has a powerful fan. We like it.

I picked this up to heat and cool shed workshop/office. It works perfectly. It's actually a little too big for my 160 sqft space. Normally an oversized ac would cause humidity issues, but I can set this thing to dehumidify mode and it will pull the extra moisture out of the air making it very comfortable. It's very easy to install, but you will need a vacuum pump. It comes with a remote, which is ok, but the phone app is much better.

I bought this unit a little over a month ago. I have another one of these exact same model installed in a small shop on my property, it’s working fine. This new one was initially working fine but last week I went out to turn the heat on in the garage and only room temperature air blew out. Concerned that I may have a refrigerant leak, I called a local hvac repair company. Yesterday, the tech checked the levels and even vacuumed out all of the refrigerant, pulled a new deep vacuum on the system and recharged it. Still the system did not produce any warm air in the heat mode. The tech said the unit was not working in the ac mode either. He determined that the compressor was not ramping up. He said to replace the compressor it would involve a lot of labor and additional refrigerant and that would cost more than the unit cost in the first place. I think the tech felt sorry for me and only charged me 300 dollars for his labor and fresh refrigerant he added to the system. I have emailed Della through Amazon customer service. In the email , I told them what the tech said and did. I’m waiting to see what happens. They have emailed me back once already wanting to know what the system was doing (I feel like I already explained that part to them) and if the tech “wrote a report”. I hate to call the tech back to ask for additional labor of writing me a report. He was already at my property for 3 hours working on the system. I’m around 1400 dollars in to this system so far. I just spoke to Hector with customer service and he said that I must have gotten a bad compressor. He’s said that they are sending me a new outdoor unit.

we were new to the concept of mini splits and decided to go for it for a 240 square-foot shed we built. We don’t have any complaints on this one. Now we can hardly wait to finish her house and get a couple of these units!!

Works well for my den which was an add on. Easy to operate. Good value for the money.