Choosing the right 3 phase mini split system can significantly enhance your home or business comfort by providing efficient, customizable climate control across multiple rooms. These systems combine energy-saving inverter technology, quiet operation, and easy-to-control indoor units for optimized living or working spaces. Below is a summary table featuring top 3 phase mini splits ideal for multi-zone applications, including models from Della, ROVSUN, Daikin, Cooper & Hunter, and Air-Con.
| Model | BTU | Zones | Energy Efficiency (SEER2) | Special Features |
|---|---|---|---|---|
| Della ODU Tri 3 Zone | 27,000 BTU | 3 (9K + 9K + 18K) | 19 SEER2 | Alexa/Wifi Compatible, Heat Pump up to -4℉ |
| ROVSUN 28000 BTU Tri Zone | 28,000 BTU | 3 (12K + 12K + 12K) | 20 SEER2 | Advanced IFEEL Mode, Auto Defrost, Turbo Function |
| Daikin 3-Zone Mini Split | 24,000 BTU | 3 (9K + 12K + 12K) | 21 SEER2 | R32 Refrigerant, 12-Year Warranty, Very Low Temp Heating |
| Cooper & Hunter 3 Zone Ceiling Cassette | 28,000 BTU | 3 (9K + 9K + 9K) | 24.6 SEER2 | Whisper Quiet Operation, Ceiling Mounted Design |
| Air-Con 36,000 BTU Mini Split | 36,000 BTU | 1 Zone (Single Unit) | 16 SEER | Installation Ready, Heat & Cool Capabilities |
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Della ODU Tri 3 Zone 27K BTU Mini Split AC
The Della ODU Tri 3 Zone Mini Split offers a multi-zone solution with 27,000 BTU capacity, divided into three indoor air handlers (9,000 + 9,000 + 18,000 BTU). It provides separate temperature control for each room, ideal for personalized comfort. This system utilizes DC inverter technology and a heat pump suitable for temperatures as low as -4°F, supporting energy-efficient cooling and heating with 19 SEER2 rating. The unit features ultra-quiet operation at 50 dBa and includes extensive installation kits like copper line sets and drain pipes. Note that professional installation is required due to vacuuming and refrigerant charge adjustments during setup.
ROVSUN 28000 BTU Tri Zone WIFI Mini Split AC/Heating
This ROVSUN 3-zone system includes one outdoor condenser of 28,000 BTU and three equally powered 12,000 BTU indoor units with individual room controllers. The AC features a heat pump supporting heating down to -13°F, providing all-season comfort with efficient cooling and heating. Energy-efficient inverter technology yields a 20 SEER2 rating with claimed 30% energy savings. The unit also boasts smart functions such as IFEEL mode, auto defrost, silent mode, and a turbo speed function. Its versatility makes it suitable for a wide range of applications from residential to commercial spaces.
Daikin 24,000 BTU 3-Zone Mini Split Heat Pump System
The Daikin 3MXM24AVJU9 is a powerful mini split system with three fan coils rated at 9,000, 12,000, and 12,000 BTU each. Designed with R32 refrigerant, this system achieves a high 21 SEER2 energy efficiency and is AHRI certified. Daikin’s heat pump provides reliable heating from 5°F to 59.9°F and cooling between 14°F and 115°F, making it suitable for variable climates. A 12-year manufacturer warranty adds peace of mind. Its compact design suits renovations and new builds alike where ductwork is impractical.
Cooper & Hunter 3 Zone 9k+9k+9k Ceiling Cassettes
The Cooper & Hunter multi mini split offers a unique ceiling cassette design that distributes air evenly with whisper-quiet operation. It includes three 9,000 BTU zones totaling 28,000 BTU and comes with 25 feet of installation kits for quick setup. This system uses 208-230V power and boasts a high 24.6 SEER2 rating. It is AHRI certified and UL approved, working efficiently down to -13°F for heating. Its unobtrusive ceiling mount makes it ideal for bedrooms, offices, and commercial installations requiring discreet air conditioning.
Air-Con 36,000 BTU Mini Split Air Conditioner
The Air-Con 36,000 BTU unit is a single-zone mini split ideal for larger spaces requiring robust but efficient heating and cooling. With a 16.4 SEER efficiency rating, it offers moderate energy savings. The system comes installation-ready with 12 feet of insulated copper tubing and all necessary power and signal cables, simplifying setup by professionals. It supports heat pump functionality to provide year-round comfort with reliable temperature control and solid power supply at 208-230V.
Buying Guide for 3 Phase Mini Split Systems
Selecting the best 3 phase mini split requires considering various factors to ensure efficient, reliable, and comfortable climate control across multiple zones:
1. Number of Zones and BTU Capacity
Determine how many indoor units are needed to cover distinct rooms or areas independently. Choose based on each room’s size and expected heat load. Systems commonly offer 3 or more zones with BTU ratings tailored from 9,000 to 18,000 per zone.
2. Energy Efficiency Ratings (SEER2 & HSPF)
Higher SEER2 and HSPF values indicate better cooling and heating efficiency and lower operating costs. Most modern 3 phase mini splits range from 16 SEER to above 24 SEER2. Additionally, check if the system uses inverter technology for better power savings.
3. Refrigerant Type and Environmental Impact
Look for units using environmentally friendly refrigerants such as R32, which offer improved efficiency and lower global warming potential. Certification like AHRI confirms compliance with efficiency and safety standards.
4. Heating Capability and Temperature Range
If you require heating during colder months, verify the lowest ambient temperature the heat pump can operate effectively. Some systems handle temperatures below 0°F, ideal for colder regions.
5. Control Features and Connectivity
Advanced systems offer individual room controllers, smartphone Wi-Fi controls, voice assistant compatibility, and programmable timers. These features enhance convenience and energy management.
6. Installation Requirements
Professional installation is generally mandatory for 3 phase mini splits due to the complexity of refrigerant handling and line-set vacuuming. Check if the unit includes installation kits like copper tubing, communication wiring, and drainage pipes. Proper sizing of electrical components such as fuses or disconnect switches is also critical.
7. Noise Level
Quiet operation is essential for bedrooms, offices, or commercial spaces. Look for units with noise ratings below 55 dBa and whisper technology features.
8. Warranty and Manufacturer Support
A comprehensive warranty (often 10-12 years on compressors) and reliable customer service can provide long-term assurance.
By carefully reviewing these criteria and comparing system features, BTU capacities, and certifications, you can select a 3 phase mini split system that maximizes your energy efficiency, delivers consistent performance, and meets your specific multi-zone cooling and heating needs.