DELLA Vario Series 24000 BTU Mini Split AC, 2 Ton 21 SEER2, Work with Alexa and Wifi, 230V Ductless Inverter System, Cools Up to 1500 Sq.Ft, Pre-Charged Heat Pump and 16.4ft Installation Kits
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Availability:
In Stock.
Arrives
Mar 27 – Apr 4
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Style: 24,000 BTU - 230V / 21 SEER2
Features
- [ENERGY EFFICIENT COOLING] 24,000 BTU/h, 21 SEER2, 208230V. ETL Listed and AHRI Certified. Pre-charged ductless mini split with DC inverter heat pump delivers reliable operation down to -4 F (-20 C) with up to 30% reduced power consumption.
- [SMART SENSOR & INSTALLATION] The unit will sense room temperature at the remote control, instead of at the indoor unit during cooling mode. It then adjusts airflow and temperature accordingly, resulting in the ultimate in personal comfort control and energy savings. No refrigerant adjustment needed if tube is under 25 ft; over 25 ft requires adjustment according to the manual. This system mandates professional installation - it's not a DIY mini split AC.
- [STRONG SYSTEM] This air conditioner is designed with several smart functions that make it easy to use: 4D air flow(up-down left-right), I feel mode, 24 hour timer, sleep mode, eco energy saving mode, multiple fan speeds, turbo function, heating, cooling, dry, and auto modes for dehumidifying. Maximum Fuse Size is 25A.
- [AMPLE COVERAGE] This unit provides cooling and heating for up to 1500 Sq. Ft and able to work in environments as low as -4 degrees Fahrenheit. Full installation kit included (Standard size 1/4" & 1/2" outer dimension copper pipes). The length for drain pipe is 78.7".
- [QUIET OPERATION] Enjoy ultra-silent performance at just 36 dBa, ensuring minimal noise for bedrooms or living spaces. The unit delivers balanced, even airflow throughout the room and offers precise temperature adjustment from 60 F to 90 F, quickly creating your ideal comfort level in minutes.
Brand: Della
Capacity: 2 Tons
Cooling Power: 24000 British Thermal Units
Special Feature: Dehumidifier, Heating & Cooling Function, Remote Controlled, Sleep Mode, WiFi Enabled
Product Dimensions: 10.25"D x 46.94"W x 14.19"H
Start year: 2021
Seasonal Energy Efficiency Ratio (SEER): 19
Color: White
Voltage: 230 Volts
Noise Level: 51 Decibels
Brand Name: Della
Model Info: TL-24K2VB-21S-I+O
Item Weight: 36.4 pounds
Product Dimensions: 10.25 x 46.94 x 14.19 inches
Item model number: TL-24K2VB-21S-I+O
Efficiency: High
Capacity: 2 Tons
Noise: 51 Decibels
Installation Type: Split System
Part Number: TL-24K2VB-21S-I+O
Form Factor: Mini-Split
Special Features: Dehumidifier, Heating & Cooling Function, Remote Controlled, Sleep Mode, WiFi Enabled
Color: White
Voltage: 230 Volts
Wattage: 81888 watts
Batteries Included?: No
Batteries Required?: No
Floor Area: 450 Square Feet
Date First Available: February 22, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Mar 27 – Apr 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 24,000 BTU - 230V / 21 SEER2
The media could not be loaded. 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.
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Reviewed in the United States on July 19, 2024 by evolvingpowercat evolvingpowercat
Style: 24,000 BTU - 230V / 21 SEER2
I bought the 24k mini split with a wall mounted head unit. Unit arrive with the cardboard box a little beat up but the unit itself in excellent condition. Delivery was exactly when predicted. Setup was straightforward, took most of a day but I had to run the electrical service also. Templates were clear and easy to follow, mounting brackets were easy to use and level, only thing not specified in the directions was the minimum line length for the unit. Della customer service immediately responded that for this specific unit is 9 feet. Evacuation and flaring were straightforward with what appear to be good quality fittings on the unit. The line cord is stranded so you might want to tin the ends when installing. The plastic through wall sleeve was pretty light duty - I ran my line set through a PVC pipe instead and the rubber pads for under the unit do not look like they will stand the test of time when installed on my wall bracket, but everything else seemed pretty decent quality for the price point. The unit has a strong blower, with a lot of options and it blows very cold even on an 87 degree day. Lots of features and wifi integration that I have not yet explored. I am giving this unit 5 stars for value and I will update this review if anything happens that changes my opinion.
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Reviewed in the United States on April 25, 2025 by Broker, Builder, Engineer
Style: 24,000 BTU - 230V / 21 SEER2
This mini split is perfect. Super quiet, it looks good, fairly easily to install (it does take two men) and most importantly- it cools! My shop is about 400+ sq ft, one larger room, a little bathroom, an office and storage room. It all stays cool. I did buy a slightly oversized mini split. I think that might make the difference if all the little rooms are cool, not just the larger. I would install a new set of batteries into the clicker right off the bat though. The batteries provided jist arent worth a flip. But- it’s a fantastic little minisplit. Does the job very quickly. And this is in the middle of the day with Texas heat. Easy to recommend.
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Reviewed in the United States on July 20, 2025 by Michael E.
Style: 24,000 BTU - 230V / 21 SEER2
I have installed several mini splits. Just for myself and family. I'm not HVAC certified. If you have any mechanical ability they are easy to install. I've done Della and Senville. I will say that Senville seems to be better built but Della is cheaper. I guess it comes down to what you wallet can take. My Senville dropped my summer cooling cost down from 300+ a month to 120. Heating in the winter even more. I have the 24000 and 18000 btu units. My home is large. Built in 1918. The two units do a wonderful job. Remote controls are easy to understand. I wish I had these things back in the 90s. I definitely would recommend and would definitely replace the units if need be.
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Reviewed in the United States on July 6, 2024 by Bryan T.
Style: 24,000 BTU - 230V / 21 SEER2
I should have gotten one of these years ago. Install was easy if your handy. This works well beyond my expectations for cooling and heating..just amazing. Super quiet air flow. I highly recommend!
Reviewed in the United States on November 4, 2025 by Robert