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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Nov 2 – Nov 10
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At a glance
- Condition
- New
- Color
- White with Line set
- Size
- 3 Zone 35000 BTU 9+12+12
- Model
- 1D4-TL+T91212
- Capacity
- 2.92 tons
- Dimensions
- 8.07"D x 31.92"W x 11.49"H
- Cooling Power
- 35000 british thermal units
- In the box
- Installation kit3 pcs 16ft copper pipes lineset3 pcs 6.56ft outlet drain pipe3 installation kits
Features 5
- [ENERGY EFFICIENT COOLING] Della 3 Zone 35000 BTU/h, 19 SEER2, 208-230V, ETL Listed, 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.)
- [AMPLE COVERAGE] This unit provides cooling and heating for up to 1500 Sq. Ft (2 indoor unit recommended area 550 Sq. Ft, another one 400 Sq. Ft) and able to work in environments as low as 5 degrees Fahrenheit. Full installation kit included. It Works with Alexa.
- [MULTIPLE ROOMS] Comes with 3 indoor air handlers 9000 BTU + 12000 BTU + 12000 BTU with separate controller for individual rooms and 1 outdoor condenser. Enjoy individual temperature controls in each room for ideal climate control. Maximum Fuse Size is 35A. 3 pcs 16ft copper pipes lineset (Standard size 1/4" & 3/8" outer dimension), 3 pcs 6.56ft outlet drain pipe (inner/outer diameter size:15.5mm/16.9mm) and 3 installation kits included.
- [QUIET OPERATION & INSTALLATION] This air conditioner is ultra silent at only 28 dBa. 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. Any alteration of line-set length requires adjusting freon levels.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, and dry mode for dehumidifying.
Description
Which WiFi Channel Frequency Bands Does WiFi Support? DELLA supports the 2.4 GHz WiFi channel frequency band only. How Do I Choose the Right Size for a Mini Split? The size of the mini split depends on the room's dimensions and specific needs. For example: • A 400-square-foot room typically requires a 9000 BTU mini split. • A 550-square-foot room needs 12000 BTUs. • A 1000-square-foot room needs 18000 BTUs. Can I get longer lineset extensions for this multi zone mini split? Yes, Della offers different lineset lengths for multi-zone systems. Please note, if any individual lineset is longer than 25 feet, additional refrigerant will be required. Make sure to consult a professional HVAC technician for proper installation. What's Della Lifetime Coverage Mini Split? Register within 100 days for lifetime parts coverage. HVAC-licensed installs receive enhanced lifetime parts, while non-licensed installs receive limited lifetime parts. Note: Coverage is for parts only; labor costs are not included. How Do I Clean and Maintain My Mini Split System? Seasonally clean the reusable filters, inspect the condenser and evaporator units, and keep the area around the outdoor unit clear. DELLA 28K Wifi Mini Split DELLA 28K Wifi Mini Split DELLA 28K Wifi Mini Split DELLA 35K Wifi Mini Split DELLA 35K Wifi Mini Split DELLA 35K Wifi Mini Split
Specs 38
| Brand | Della |
|---|---|
| Capacity | 2.92 tons |
| Cooling Power | 35000 british thermal units |
| Special Feature | 4 Way Swing, Dehumidifier, Heating & Cooling Function, Remote Controlled, Works with Alexa |
| Product Dimensions | 8.07"D x 31.92"W x 11.49"H |
| Start year | 2021 |
| Seasonal Energy Efficiency Ratio (SEER) | 19 |
| Color | White with Line set |
| Voltage | 230 volts |
| Noise Level | 28 db |
| Additional Features | 4 Way Swing, Dehumidifier, Heating & Cooling Function, Remote Controlled, Works with Alexa |
| Noise | 28 db |
| Refrigerant | R-454B |
| Inverter Type | Has Inverter |
| Installation Type | Split System |
| Compressor Type | Rotary scroll |
| Outdoor Unit Compatibility | Requires New Outdoor Unit |
| Air Conditioner Application | Indoor |
| Power Source | Corded Electric |
| Wattage | 36000 watts |
| Efficiency | Medium (SEER 19) |
| Floor Area | 1500 sq ft |
| Room Type | Multiple Rooms |
| Form Factor | Mini-Split |
| Number of Tubes | 3 |
| Brand Name | Della |
| Model Name | 1D4-TL+T91212 |
| Model Number | 1D4-TL+T91212 |
| Unit Count | 4 Count |
| UPC | 192928051018 |
| Manufacturer | Della |
| Item Dimensions D x W x H | 8.07"D x 31.92"W x 11.49"H |
| Control Method | App, Remote |
| Controller Type | Remote Control |
| Number of Power Levels | 2 |
| Warranty Type | Limited |
| BEE Star Rating | 3 Star |
| Number of Heating Elements | 1 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 2 – Nov 10
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
Della Split Units
Size: 3 Zone 35000 BTU 9+18+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
It’s Good
Size: 3 Zone 35000 BTU 9+9+12
These ere easy to install. Looks great on the wall and works great.
Reviewed in the United States on March 7, 2026 by Carrie Carlsen
Easy to install, works good
Size: 3 Zone 35000 BTU 9+12+18
This is great. It was easy to install and easy to program with alexa. Heating and cooling in my home is now automated and I can control it from anywhere. I will be buying another unit for my garage and addition soon.
Reviewed in the United States on January 27, 2026 by James M
Phenomenal HVAC solution Phenomenal HVAC solution
Size: 3 Zone 35000 BTU 12+12+18
Added these to my 1,900 sq ft barn/man cave and Only took 2 of us 2 hours to install. Cools down to 61 degrees and manage all via mobile app, allowing management of units, even when states away. Because I live in Texas I’ve not had need to test heating aspects yet. installation instruction are crystal clear and on point. Love the warranty too.
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Reviewed in the United States on August 29, 2025 Reviewed in the United States on August 29, 2025 by Julie Warden
Installed myself
Size: 3 Zone 35000 BTU 9+9+24
3 cassette install. Not as quiet as I would have liked, you might want to pay attention to the db ratings if that’s super important. Otherwise works great at 5 months. Take your time and you can do it. Did it all by myself but I would highly recommend a helper getting the pipes thru the wall.
Reviewed in the United States on December 21, 2024 by Buffalo soldier
La mejor compra que he hecho en mi casa La mejor compra que he hecho en mi casa
Size: 3 Zone 35000 BTU 12+12+12
Ya tengo dos años usando este mini split sin ningún problema me encanta lo eficiente que es y ahorra energía
Reviewed in the United States on June 16, 2025 Reviewed in the United States on June 16, 2025 by Yadira Leyva
DO NOT BUY! (1 Year Review)
Size: 3 Zone 35000 BTU 12+12+12
DO NOT BUY THIS OFF BRAND MINI SPLIT!!! (1 year review) First off the page clearly encourages you to install it yourself; but..... if you do you have instantly voided the "very short" 1 year warranty, which they don't tell you. In order to register the product to obtain the warranty you have to have a licensed HVAC contractor install it and you have to provide all of their info including their license number. I followed all online instructions and did it myself not knowing any of this. Of course, the compressor went out in less than a year throwing a EU \ P2 error which the original point of contact said was the PCB board. this didn't change the problem at all. I had to contact them an additional 4 more times to get them to get a technician to contact me back. She confirmed in 5 seconds that the compressor was the issue and that I just wasted $400 on a new PCB board. Also I had just missed the 30 day return for the now redundant part because they start the 30 day return period on the date of purchase and not the nearly 3 weeks later when I actually received the part. Next problem; because Della is a no name, off brand no HVAC companies will touch it and there is no way in hell that I'm going to mess with draining lines and replacing a faulty compressor. All of this has meant that I now have a $3,700.00 piece of junk attached to the side of my house that is dead in the water just as winter has hit. Yes you can get 24 hour support but it is 100% useless as they do nothing to help you find a technician to fix their broken garbage of a machine. Once again DO NOT BUY!!!!!
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Reviewed in the United States on January 21, 2026 by Reed Embry
review
Size: 3 Zone 35000 BTU 12+12+18
working great so far. The only thing i recomend is have a profetional install these if you know nothing about them. For a person whom doesnt know how to install this product it will be a very bad head ache. I am a profetional and even i had a little bit of hard time doing it my self. Please read the instructions and go based on them. Dont belive the comercials when they say "its so easy to install it your self" because it isnt. make sure to have a flaring tool and gages and hvac vaccum pump ready to do this the rite way.
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Reviewed in the United States on June 22, 2023 by enoes