DELLA 28K BTU ODU Tri 3 Zone 12K 12K 12K BTU 20 SEER2 208-230V Cools Up to 1650 Sq.Ft, Works with Alexa and Wifi, Energy Efficient, Multi Zone Mini Split AC, Pre-Charged Heat Pump, 16ft Kit
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Availability:
In Stock.
Arrives
Jun 1 – Jun 9
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Size: Tri Zone(3) 28000 BTU 12+12+12
Features
- [ENERGY EFFICIENT COOLING] Della 20 SEER, 208-230V, ETL Listed, 3 Zone 28000 BTU/h,AHRI Certified pre-charged air conditioner unit features a mini split inverter plus system with a heat pump (up to -13F/-25C) and DC Inverter technology provides up to 30% power savings. (This model does not support the Self-Cleaning Function. The option will still show on the display after pressing the self-cleaning button, the self-cleaning operation will not be performed.)
- [MULTIPLE ROOMS] 1 outdoor condenser and comes with 3 indoor air handlers 12000 BTU + 12000 BTU + 12000 BTU with separate controller for individual rooms . Enjoy individual temperature controls in each room for ideal climate control. 3 pcs 6.56ft outlet drain pipe (inner/outer diameter size:15.5mm/16.9mm) Maximum Fuse Size is 30A. 3 installation kits included,3 pcs 16ft copper pipes lineset (Standard size 1/4" & 3/8" outer dimension).
- [QUIET OPERATION & INSTALLATION] This air conditioner is ultra silent at only 28 dBa.Any alteration of line-set length requires adjusting freon levels.This system mandates professional installation - it's not a DIY mini split AC. The unit provides equal airflow in every part of your room and can adjust to 60-90 degrees Fahrenheit to suit your comforts in just a few minutes.Line-set vacuuming is required during installation.
- [AMPLE COVERAGE] This AC able to work in environments as low as 5 degrees Fahrenheit provides heating for up to 1650 Sq. Ft (3 indoor unit recommended area 550 Sq. Ft) . Full installation kit included. This air conditioner is designed with several smart functions: 24 hour timer, sleep mode, eco energy saving mode,4D air flow(up-down left-right), multiple fan speeds,cooling, heating and dry modes for dehumidifying.
- [MULTI ZONE CAPACITY]: This configuration is designed for spaces where not all indoor units are expected to operate at full power at the same time. If the total indoor capacity is higher than the outdoor units output, the system can still function properly, but cooling or heating performance may be slower when all zones are operating beyond capacity. For consistently high demand across all zones, a larger or multi-system setup is recommended.
Brand: Della
Capacity: 1 Tons
Cooling Power: 12000 British Thermal Units
Special Feature: Alexa and WiFi Enabled, Dehumidifier, Energy Efficient, Heating And Cooling Function, Sleep Mode
Product Dimensions: 8.07"D x 31.92"W x 11.49"H
Start year: 2001
Seasonal Energy Efficiency Ratio (SEER): 20
Color: White
Noise Level: 56 Decibels
Refrigerant: R-454B
Cooling Power: 12000 British Thermal Units
Additional Features: Alexa and WiFi Enabled, Dehumidifier, Energy Efficient, Heating And Cooling Function, Sleep Mode
Color: White
Noise: 56 Decibels
Refrigerant: R-454B
Inverter Type: Has Inverter
Installation Type: Split System
Compressor Type: rotary_scroll
Is Outdoor Unit Required: Yes
Air Conditioner Application: Residential and Commercial
Power Source: Corded Electric
Wattage: 41000 watts
Control Method: App, Remote
Controller Type: Remote Control
BEE Star Rating: 4 Star
Form Factor: Mini-Split
Brand Name: Della
Start Year: 2001
Model Name: 1D3-TL+T121212
Model Number: 1D3-TL+T121212
UPC: 192928062069
Manufacturer: Della
Item Dimensions D x W x H: 8.07"D x 31.92"W x 11.49"H
Seasonal Energy Efficiency Ratio (SEER): 20
Efficiency: 20 SEER
Capacity: 1 Tons
Floor Area: 550 Square Feet
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 1 – Jun 9
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
Size: Tri Zone(3) 28000 BTU 9+12+12
The system is Great-Super Quiet and Efficient. BUT if you buy directly from Della's website they have better customer support for switching parts like linesets lengths(copper and electric lines from outdoor unit to indoor units) for free and warranty details. For a 1200 sqft house we bought a 27K BTU (3 indoor unit system, 9K, 9K, & 12K) that came with 3 16' linesets, but we needed 2 50' linesets. If we bought from Della directly they would have exchanged for free, but buying from Amazon we had to put out another $600 for 2 longer linesets. Easy to install if you're an avid DIY. No ductwork, which is excellent for flood areas. Mount units on wall, run linesets (in or thru walls) to outdoor compressor, run 220V service to outdoor unit with a disconnect. We built a 5' high stand for outdoor unit. We had a HVAC company come to make the final lineset connections and startup (about $500). Haven't had a need for the heating part; will update later. Wish I had done this years ago!!!
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Reviewed in the United States on June 23, 2025 by don morlock/Dana Schmidt
Size: Tri Zone(3) 28000 BTU 9+9+18
Well we saved money by buying these and doing it ourselves. My husband is a sprinkler fitter and has some construction knowledge. I have a 1000 square ft house and we put one in the basement, one in the living room and one in our bedroom. The window AC were killing us at 400+ electric bills and the house was uncomfortable and not that cool. The window AC if I cooked the house got hotter, but with this unit it was awesome. My bills went down and I was finally comfortable. I have boiler heat in this house and we tested the heat and they work great and if my boiler goes out I’m glad to have a back up. FYI they need a way to drain. I think the drain tubes provided are cheap and you can up grade that
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Reviewed in the United States on November 29, 2025 by Hondacat
Size: Tri Zone(3) 28000 BTU 9+9+18
My central heat pump failed and would have costed me $18,000 for a replacement through a company. Thats alot of money most people don't have including myself. So I decided to take the DIY route and install this unit in my 1800 sq ft house and it was the best decision I could have made. This thing is so much more efficient than my old central unit and zoned temps make all rooms feel exactly how you want. Even on the turbo setting the fan is whisper quiet. Only downside so far is the lack of a fully functional mobile app. Do your research and watch some tutorials and you'll find that this unit is more than worth it.
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Reviewed in the United States on February 18, 2026 by Nick Lockard
Size: Tri Zone(3) 28000 BTU 9+9+12
It works great. Customer service helped me
Reviewed in the United States on March 2, 2026 by Diana
Size: Tri Zone(3) 28000 BTU 9+9+18
Units run great and quite. Heats and cools fast and the temperature is comfortable. We Love It!
Reviewed in the United States on April 15, 2026 by Holmes burg United Methodist Church
Size: Tri Zone(3) 28000 BTU 9+9+9
The old, undersized central air was not cutting it. I spent a while researching mini split units and decided to go with Della. Having never installed one before, I read a bunch, watched a lot of video, went for it. Took my time, took two days to fully install the three indoor units, in very hot weather. If you are a DIY'er, I would not hesitate to install one of these. Bending the copper, just take your time, support the bending, all good. One unit is not on an exterior wall, I tried two different pumps, one did not work at all, the other was questionable, I ended up doing an alternative drain hidden in closets to the garage and the washing machine drain, much better! If you can, forget about the pumps and figure a way to drain using good 'ol gravity. Saves you money, works better, no additional maintenance issues. The kids, having their own control of their room, and with their doors never left open, these units work so much better. Using the app on my phone I can see just how cold they keep their rooms. Quite cold!! Once the room is cooled, the unit is really not working much to maintain that temp. Still waiting for my first bill!! :)
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Reviewed in the United States on September 9, 2024 by Chris
Size: Tri Zone(3) 28000 BTU 9+9+12
Absolutely wonderful mini split combo. Fairly easy to install and incredibly quiet. App functions well.
Reviewed in the United States on July 17, 2025 by Chelsey
Size: Tri Zone(3) 28000 BTU 9+9+18
Be prepared to spend another 2000$ for a Air Conditioning guy. to come out and vacuum it Down and charge it for you
Reviewed in the United States on January 26, 2026 by Pmd