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. • A 1500-square-foot room needs 24000 BTUs.

How Do I Install a Mini Split?

We recommend professional HVAC installation for best results, but Della also offers a Rental Kit with the tools needed for vacuuming and installing your mini split.

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 Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+18K+18K) - Up to 2800 Sq.Ft.

SKU: 048-TLP-MODU-1D6-TPX-Q991818

$4,859.96

Unit price: per

Voltage: 230 Volts
Refrigerant: R454B
SEER2: 22.5
Climate Range: -22°F - 131°F

See full Tech Specs

Choose Your Configuration

Air Handler (9K)

Air Handler (18K)

DELLA Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+18K+18K) - Up to 2800 Sq.Ft.

Free & fast shipping

30-day money-back guarantee

Free lifetime coverage

Download Remote Control Manual (New Black) (PDF)

AHRI Certificate

Description

The Optima CloudAir Series 55000 BTU quad zone mini split AC is designed for powerful comfort across four rooms with a 9K + 9K + 18K + 18K indoor unit configuration. Covering up to 2800 sq. ft., this 4-zone ductless mini split system is ideal for two smaller bedrooms, offices, or guest rooms plus two larger living areas, suites, studios, or finished spaces. The 9K units are recommended for up to 400 sq. ft. each, while each 18K unit supports up to 1000 sq. ft. Rated at 22.5 SEER2 and powered by DC inverter technology, it helps reduce energy use by up to 40% while delivering dependable heat pump performance down to -22°F. The CloudAir soft airflow system helps reduce direct drafts and spread air more naturally for comfortable long-term use. Built-in WiFi, smart geolocation, separate controllers, 24-hour timer, Sleep mode, Eco mode, Turbo function, heating, cooling, and dry modes provide flexible room-by-room control.

What's included

Shipping & returns

Lifetime warranty

Tech specs

Download User Manual

Indoor Unit Specs

Unit Dimensions (WxDxH):9K: 32.28" x 12.05" x 7.68" ； 18K: 43.18" x 13.07" x 8.74"

Net/Gross Weight:9K: 20.7 / 25.1 ； 18K: 30.9 / 35.2

Outdoor Unit Specs

Unit Dimensions (WxDxH):40.71" x 16.1" x 52.68"

Net/Gross Weight:249.1 / 275.6

System Specs

Voltage:230 Volts

Refrigerant:R454B

SEER2:22.5

Climate Range:-22°F - 131°F

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 22-24 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

61% more efficient energy savings

Cleaner air, healthier living

Durable design, lasting comfort

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.

Which series is right for me?

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

- DELLA Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+18K+18K) - Up to 2800 Sq.Ft.
- SEER2 22.5
- 9.5
- R454B
- -22°F - 131°F
- DELLA Vario Series 55000 BTU Quad Zone Mini Split AC (9K+9K+18K+18K) - Up to 2800 Sq.Ft.
- SEER2 22.5
- 9.5
- R454B
- -22°F - 131°F
- Shop Now
- DELLA Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+9K+23K) - Up to 2700 Sq.Ft.
- SEER2 22.5
- 9.5
- R454B
- -22°F - 131°F
- Shop Now
- DELLA Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+12K+23K) - Up to 2850 Sq.Ft.
- SEER2 22.5
- 9.5
- R454B
- -22°F - 131°F
- Shop Now
- DELLA Optima CloudAir Series 55000 BTU Quad Zone Mini Split AC (9K+9K+18K+24K) - Up to 3300 Sq.Ft.
- SEER2 22.5
- 9.5
- R454B
- -22°F - 131°F
- Shop Now

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