What kind of refrigerant does this use?

This unit uses R454B refrigerant. This unit comes pre-charged with R454B refrigerant for up to 24.5 feet of lineset. If your installation does not exceed this length, no additional refrigerant is needed.

Can I get longer extensions for this installation kit?

Yes, for multi-zone units, you can go back to the product options to select different lineset lengths for each indoor unit.Please note, if the extended lineset is longer than 25 feet, additional refrigerant will be required. Make sure to consult a professional HVAC technician for proper installation

When the unit is in auto mode, what will the room's temperature be maintained at?

In auto mode, the unit automatically switches between cooling and heating to maintain the set temperature. You can adjust the target temperature manually¡ªtypically between?60¡ãF and 86¡ãF?¡ªdepending on your comfort.

Do the condenser lines come pre-vacuumed or do they have to be vacuumed?

The mini split condenser and lines are not pre-vacuumed. You will need to vacuum the system during installation to remove air and moisture before releasing the refrigerant¡ªthis is essential for proper operation and longevity. You can use our?Rental Kit?Service, which includes all the necessary tools for vacuuming and installing your mini split.

How long will it take for my order to ship and how much do you charge for shipping?

It normally takes us 1 business day to arrange the shipment. During peak seasons, it will take 2-4 business days to arrange the shipment. We provide free ground shipping, so there are no additional charges for shipping and handling.

DELLA Optima Series 42000 BTU Quad Zone Mini Split AC with R-454B (9K+12K+12k+12k) - Up to 2050 Sq.Ft.

SKU: 1D5-TP+Q9121212

$4,449.96

Unit price: per

Voltage: 230 Volts
Refrigerant: R454B
SEER2: 22

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Installation Kit

DELLA Optima Series 42000 BTU Quad Zone Mini Split AC with R-454B (9K+12K+12k+12k) - Up to 2050 Sq.Ft.

Installation Kit: 16FT+16FT+16FT+16FT

Free & fast shipping

30-day money-back guarantee

Free lifetime coverage

Description

Efficient, powerful, and built for large spaces — perfect for homes or offices.
42000 BTU capacity covers up to 2050 sq. ft.
Quad Zone cooling with 9K+12K+12k+12k indoor units
Energy-efficient performance with whisper-quiet operation

What’s included

1. Indoor Unit
2. Outdoor Unit
3. Refrigerant Pipe (10ft / 16ft / 25ft / 33ft/ 50ft models only)
4. Drain Lines
5. Remote Control
6. 2 AAA Batteries
7. Screws
8. Anchors
9. Mounting Plate
10. Insulation Foam
11. Wall Sleeve
12. Rubber Feet
13. Plasticine Putty
14. Drain Elbow
15. Wall cap
16. Plastic Wrap
17. Communication Cable
18. Bracket Template

Shipping & returns

Warranty

Tech specs

Download User Manual

Indoor Unit Specs

Unit Dimensions (WxDxH):9K：32.28" x 12.05" x 7.68" ； 12K：36.22" x 12.05" x 7.68"

Net/Gross Weight:9K: 20.7 / 25.1 ； 12K: 23.1 / 30.9 ；

Outdoor Unit Specs

Unit Dimensions (WxDxH):42.28" x 18.43" x 33.58"

Net/Gross Weight:174.2 / 198

System Specs

Voltage:230 Volts

Refrigerant:R454B

SEER2:22

No.1 Selling Mini Split Brand on Amazon

Optima: Cold Weather’s Greatest Rival. Efficiency’s New Standard.

Engineered with cutting-edge Hyper Heat technology, the Optima mini-split delivers reliable, high-performance heating even when temperatures plummet to -13°F. With an industry-leading 22-24 SEER2 rating and ENERGY STAR® certification, it’s designed to slash your utility bills while keeping your sanctuary cozy year-round. Whisper-quiet, smart-connected, and built for the extreme—Optima ensures your comfort (and savings) never freeze, no matter what’s happening outside.

Top performance, energy smart design

58% more efficient energy savings

Cleaner air, healthier living

Durable design, lasting comfort

Reliable Performance in Extreme Weather

Engineered to deliver dependable heating and cooling through intense summer heat and freezing winter conditions, helping maintain consistent comfort when outdoor temperatures become more demanding.

6 modes for max comfort

Auto mode

Maintain a comfortable indoor temperature by automatically switching between heating and cooling as needed

Wherever you are

Control your comfort, your way

Set schedules and timers through the Della+ app to match your daily routine.

Frequently asked questions

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