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Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

SKU: 1D4-TP+D1824
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$3,749.96 $4,312.96
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Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

The Optima Series 35,000 BTU Two Zone Mini Split AC is the ideal solution for cooling or heating large spaces up to 2,500 sq. ft. Featuring one 18,000 BTU and one 24,000 BTU indoor unit, this system ensures powerful and consistent climate control across varying room sizes. Equipped with Inverter Plus technology and a high-performance heat pump, it offers up to 72% energy savings while delivering efficient year-round performance. Each zone can be independently controlled for personalized comfort.

Please Note: This multi-zone mini split system uses R454B refrigerant and is pre-charged for a length of 25 feet of each lineset.If your installation exceeds this total length, additional refrigerant is required. Please consult a licensed HVAC technician to properly add refrigerant during installation.

Tech Specs

Brand Della
Voltage 230 Volts
Refrigerant R454B
Seasonal Energy Efficiency Ratio (SEER) 24
Resources

 

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

 

Lifetime coverage

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

Unmatched support that's best in class to give you peace of mind at no additional cost.

 

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

 

Quiet comfort all night long.

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

Sleep like a log with an auto mode, adjusting the room temperature to the scientific sleep curve, Clocking in at just 34dB, it's quieter than a whisper in a library.

 

Durable & efficient.

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

Our mini splits feature gold plated fins that prevent rust corrosion, creating durable and efficient performance in both blistering heat and freezing cold.

 

Say goodbye to frost buildup!

Della Optima Series 35000 BTU Dual Zone Mini Split AC with R-454B (18K+24K) – Up to 2500 Sq.Ft.

Our bottom electric heating helps prevent frostfrom forming at the base of your modelspeeding up defrosting and boosting efficiency.

 

How To Videos

Step-by-Step Guides for Easy Setup and Use

5 Urgent Steps Need to Know Before Installing Della Mini Split AC | Mini Split Installation Guide

 

Exploring Top Features Of Della App: Custom Geo Location Setup For Smart Home

 

How to Properly Connect Wires for Della's TL, Optima & Econo Mini Splits

 

FAQs

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—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.