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 Pro CloudAir Series 24000 BTU 22.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1500 Sq.Ft.

SKU: TPHX-24K2V-23S-I+O

$2,249.96

Unit price: per

Cooling Capacity: 24000
Heating Capacity: 24000
SEER2: 22.5
Fitting Area: 1500
Voltage: 208-230v
Refrigerant Type: R454B
Maximum Fuse Size: 30A
Copper Line Length: 16.4ft
Copper Line Size: 5/8 inch and 1/4 inch
Climate Range: -22°F - 131°F

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DELLA mini split air conditioner single zone

DELLA Optima Pro CloudAir Series 24000 BTU 22.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1500 Sq.Ft.

Voltage: 230V

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Description

The Optima Pro CloudAir Series 24000 BTU mini split AC is designed for powerful year-round climate control with Ultra Hyper Heat performance, soft airflow comfort, and advanced smart functionality. Ideal for spaces up to 1500 sq. ft., this ductless mini split delivers dependable cooling and low-ambient heating operation down to -22°F for reliable comfort in colder climates. Featuring soft, indirect airflow technology, it helps minimize harsh direct drafts while maintaining balanced and more natural air circulation throughout the room. Operating at sound levels as low as 32 dB in Mute Mode, it is well-suited for living rooms, bedrooms, apartments, and home offices where quieter comfort matters. Smart features include Alexa and Della+ app compatibility, the “I Feel” temperature sensor, and precise remote 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
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

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Tech specs

Download User Manual

Indoor Unit Specs

Unit Dimensions (WxDxH):43.18" x 13.07" x 8.74"

Net/Gross Weight:30.9 / 35.2

Outdoor Unit Specs

Unit Dimensions (WxDxH):38.5" x 16.57" x 31.61"

Net/Gross Weight:108 / 123.5

System Specs

Cooling Capacity:24000

Heating Capacity:24000

SEER2:22.5

Fitting Area:1500

Voltage:208-230v

Refrigerant Type:R454B

Maximum Fuse Size:30A

Copper Line Length:16.4ft

Copper Line Size:5/8 inch and 1/4 inch

Climate Range:-22°F - 131°F

DELLA mini split white wall unit internal

No.1 Selling Mini Split Brand on Amazon

Optima Pro CloudAir: Engineered for the Absolute Extreme. Comfort Perfected.

When the temperature drops, most heat pumps give up. The Optima Pro CloudAir steps up. Featuring advanced Ultra Hyper Heat technology, it delivers reliable warmth down to -22°F while maintaining 100% heating capacity at 5°F.

Now boasting an elite 25 SEER2 rating and ENERGY STAR® certification, it’s not just a heater—it’s an ironclad guarantee of year-round comfort and maximum energy savings for the harshest environments.

The Pro CloudAir Series also features soft, indirect airflow technology that minimizes harsh direct drafts for a smoother, more comfortable cooling experience.

Top performance, energy smart design

61% more efficient energy savings

Cleaner air, healthier living

Durable design, lasting comfort

Reliable Comfort in Extreme Cold

Designed to maintain dependable heating performance in severe winter conditions while delivering reliable cooling through intense summer heat.

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
Efficiency
HSPF2 Rating (Region IV)
Refrigerant
Climate Range
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Shop Now

- DELLA Optima Pro CloudAir Series 24000 BTU 22.5 SEER2 Ultra Hyper Heat Mini Split AC - Up to 1500 Sq.Ft.
- SEER2 22.5
- 10
- R454B
- -22°F - 131°F
- DELLA Optima CloudAir Series 23000 BTU 23 SEER2 Ultra Heat Mini Split AC - Up to 1500 Sq.Ft.
- SEER2 23
- 9.5
- R454B
- -13°F - 131°F
- Shop Now
- DELLA Serena CloudAir Series 23000 BTU 22 SEER2 Mini Split Heat Pump AC - Up to 1500 Sq.Ft.
- SEER2 22
- 10
- R32
- 5°F - 125°F
- Shop Now

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Customer Reviews

Overall rating: 4.0 / 5 from 1 reviews.

The install was fairly simple. Finding a 2 3/4 inch hole saw was harder than it should have been. Install was fine other than the factor line set has a bad flare on the end and blew apart when pressurized. The diy pump set was fine other than the gauge kept saying low battery even with a new battery.

Springhill A. 4/5 Verified August 18, 2026