What kind of refrigerant does this unit 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.

What is the difference between R454B and R410A?

R454B is a new-generation eco-friendly refrigerant that complies with EPA regulations. It can replace the original R410A models, offering better performance and greater energy efficiency.

Can I get longer extensions for this installation kit?

Yes, you can purchase a longer lineset separately. If you buy it together with the Single Zone Mini split system, you’ll receive a 10% bundle discount. 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—typically between 60°F and 86°F —depending 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—this 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.

DELLA Optima CloudAir Series 9000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 400 Sq.Ft.

SKU: TPX-9K1V-24S-I+O-X

$844.96

Unit price: per

Cooling Capacity: 9000
Heating Capacity: 10000
SEER2: 23
Fitting Area: 400
Voltage: 115V / 208-230V
Refrigerant Type: R454B
Maximum Fuse Size: 20A / 15A
Copper Line Length: None / 10ft / 16ft / 25ft / 33ft / 50ft
Climate Range: -13°F - 131°F

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Line Set

Voltage

DELLA Optima CloudAir Series 9000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 400 Sq.Ft.

Line Set: None

Voltage: 115V

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Free lifetime coverage

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Description

The Optima CloudAir Series 9000 BTU ductless mini split is engineered for premium year-round comfort with ultra-efficient performance, soft airflow technology, and advanced smart controls. Designed for spaces up to 400 sq. ft., this mini split heat pump delivers dependable cooling and heating performance down to -13°F while helping maintain a more comfortable indoor environment in every season. Featuring soft, indirect airflow technology, it reduces direct drafts for a gentler and more balanced cooling experience ideal for bedrooms, nurseries, apartments, and home offices. Operating at sound levels as low as 30 dB in Mute Mode, it provides ultra-quiet comfort with minimal disruption. Smart features include Alexa and Della+ app compatibility, the “I Feel” temperature sensor, and precise climate adjustment for more personalized comfort control.

What’s included

DELLA mini split complete installation kit with

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

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Tech specs

Download User Manual

Indoor Unit Specs

Unit Dimensions (WxDxH):32.28" x 12.05" x 7.68"

Net/Gross Weight:20.7 / 25.1

Outdoor Unit Specs

Unit Dimensions (WxDxH):31.88" x 12.00" x 21.61"

Net/Gross Weight:52.7 / 63.7

System Specs

Cooling Capacity:9000

Heating Capacity:10000

SEER2:23

Fitting Area:400

Voltage:115V / 208-230V

Refrigerant Type:R454B

Maximum Fuse Size:20A / 15A

Copper Line Length:None / 10ft / 16ft / 25ft / 33ft / 50ft

Climate Range:-13°F - 131°F

DELLA mini split white wall unit internal

No.1 Selling Mini Split Brand on Amazon

Optima CloudAir: Cold Weather’s Greatest Rival. Comfort, Reimagined.

Engineered with cutting-edge Hyper Heat technology, the Optima CloudAir mini-split delivers reliable, high-performance heating even when temperatures plummet to -13°F. With an industry-leading 23-24 SEER2 rating and ENERGY STAR® certification, it’s designed to slash your utility bills while keeping your sanctuary cozy year-round.

What sets the CloudAir Series apart is its soft, indirect airflow technology, designed to reduce harsh direct drafts for a gentler, more comfortable cooling experience. Whisper-quiet, smart-connected, and built for the extreme, Optima CloudAir keeps your comfort (and savings) steady year-round.

Top performance, energy smart design

65% 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

DELLA mini split air conditioner white Optima

Wherever you are

Control your comfort, your way

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

Which series is right for me?

Model
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HSPF2 Rating (Region IV)
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Shop Now

- DELLA Optima CloudAir Series 9000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 400 Sq.Ft.
- SEER2 23
- 9.5
- R454B
- -13°F - 131°F
- DELLA Optima Series 9000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 400 Sq.Ft.
- SEER2 23
- 9.5
- R454B
- -13°F - 131°F
- Shop Now
- DELLA Optima Pro CloudAir Series 9000 BTU 25 SEER2 Ultra Hyper Heat Mini Split AC - Up to 400 Sq.Ft.
- SEER2 25
- 10.5
- R454B
- -22°F - 131°F
- Shop Now
- DELLA Serena CloudAir Series 9000 BTU 22 SEER2 Mini Split Heat Pump AC - Up to 400 Sq.Ft.
- SEER2 22
- 9.5
- R32
- 5°F - 125°F
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