DELLA 24000 BTU Wifi Enabled Mini Split Air Conditioner & Heater Ductless Inverter System 19 SEER2 Cools Up to 1500 Sq.Ft, Energy Saving, with 2 Ton Heat Pump Pre-Charged and 16.4ft Installation Kits

I'm delighted with this 2-ton mini-split! It is installed in a seasonal cabin and I'm soooo happy to have AC and not have to listen to that awful buzzing from the window units I had before. All said and done, installation was relatively easy. If you are handy, you likely can do it. I made installation a bit harder by installing on an inside wall instead of an outside wall. But with some effort, I got it to work. I built a small platform to sit the outside unit on since I was unsure I wanted to hang it on brackets on the building. But now that I see (hear) it running, I'd have no hesitation putting it on brackets. I'm no longer concerned about the outdoor unit transferring noise to the building. The outside unit is very very quiet. I had bought crow's feet sockets, planning on using a torque wrench to torque the tubing connections. But, none of the english or metric fit. Nothing in my toolbox fit. I ended up using the adjustable wrenches. I have no idea what size the fittings are. Warranty... first off, the company handled shipping damage quickly and without question (I did show pictures of the problems). Warranty ... more ... register right away. I started installation in the fall, and finished in the spring. After I finished I noticed that you get MUCH better long term warranty if you register right away. But I didn't notice that until spring (it was buried in the manual). Plus the warranty registration link didn't work. Hint ... the indoor unit pulls air into the top side of the unit. I may run ductwork through the ceiling from adjacent room(s) and terminate above the unit, such that it can pull air from those rooms. I think this would help circulate air better to those rooms. Cooling seems great. Temperature control (which is sensed at the air at the wall unit) is pretty good. You can sense air temperature at the remote but note that this is not a long term continuous option for room temperature control. So I'm comfortable, happy and delighted.

The unit arrived well packaged with no damage. I bought the 24,000 BTU SEER 19 model. It can be powered from a 20 amp or 30 amp protected 240 Volt 2 L1+L2+GND power feed. The unit uses 15 Amp or less at 240 VAC which is impressive efficiency for a 24,000 BTU unit. Both indoor and outdoor units are a lot quieter than I expected. Neither has any strange vibrations or noises coming from them when running. I did self installation and you must have a second person to set the 90 lb. outdoor unit and to hang the 60 lb. indoor unit for the 24,000 BTU size. Be sure to wrap the line set tight so it moves freely thru the 70 mm thru hole you pass the line set, drain, and indoor power cable thru. I did the default piping mode 2 where the thru hole is directly behind where the drain, lineset, and power connection is located on the indoor unit which maximizes the amount of lineset and power cable you have on the outside to reach the outdoor unit. IMHO it also makes installing the indoor unit easier. I used a single stage vac pump and a manifold gauge with R410a adapters to self evacuate the line set. The instructions are very clear for what steps to follow. I used a standard automotive 3/8" socket drive torque wrench with 3/8" crowfoot adapters. I'm sure there's some error in the actual torque but it gets you in the ball park so you don't under or overtorque the flare fitting connections. The huge price difference between Della and Mr Cool Mini-split systems made up for spending $ 100 for a vac pump and manifold gauge set so I could avoid paying a AC tech to come out and do the Della as a self install. The manual said mount the bottom of the indoor unit 98" ( 8' 2" ) from the floor. I called the Della install support # and they said NO it does not have to be mounted that high, and just needs to be mounted so that the top is at least 8" from the ceiling. I followed standard mini split indoor unit install practice and mounted the bottom of the unit 6' 0" above the floor which put the top of the 24K BTU unit 7' 2" above the floor. This model has WiFi based internet connectivity and a good smartphone app that gives control over all the important functions. It also allows you to pre-program daily schedules for when to power the unit on or off and what temps and fan speeds to use. I used the iPhone Della+ app. Was able to connect it to my WiFi only by using the manual connect method, but the Della+ iPhone smart phone app led me thru it. The CON items I'll note: You remove all the protective packaging from the indoor unit in order to connect the electrical cable that goes to the outdoor unit. It is not connectorized. So you have to be careful not to mar the plastic on the indoor unit as you continue installation after connecting the electrical cable. The unit modes are not displayed with words, only with small icon symbols that are not obvious to me. You will want to make a copy of the Remote Control Display manual page for reference until you get used to it. The unit is close to worthless without the remote - be SURE to not lose it. There is a wall holder so you can put on the wall right next to the indoor unit. The unit has an Alexa skill set but the current one for this "TL" series mini split ( as of July 2024 ) is close to worthless as it only allows the unit to be turned on and off from Alexa. One final CON: The US federal government changed the requirements for getting the 30% federal tax credit for 2024 and this unit does not meet the criteria. There is a new series of Della mini-splits that does meet the criteria but they are not yet listed for sale on Amazon. The new requirement to get the 30% rebate for 2024 is a Heat Pump HSPF2 rating of 8.5, and an AC SEER2 of 15.2 . This unit's HSPF2 heat pump rating is slightly less.

Works great

Excellent! Cools 1121 sq. ft very comfortably. So very quiet.

works good so far. you will need to pull a vacuumed on the system befor charging the system not a diy