SAC3M-24UHS/I

Year-Round Comfort

Operating as a powerful air-to-air heat pump, this unit is certified for stable heating in outdoor temperatures down to -15°C and reliable cooling up to +43°C. Its smart electronic expansion valves (EEVs) dynamically distribute refrigerant, allowing you to run heating in one room and cooling in another (within system limits) or precisely balance the loads across all three zones with an accuracy of up to 0.5°C.

Technical Advantages & Features

• Energy Efficiency Class (A++ / A+): Powered by advanced DC inverter control, the system continuously scales its output to match actual thermal demands, ensuring high seasonal efficiency and preventing peak-load energy spikes.

• Heavy-Duty Twin-Rotary Compressor: Equipped with a highly efficient inverter compressor from leading global manufacturers, featuring reinforced balancing and dual-layer sound insulation to minimize outdoor vibrations.

• Eco-Friendly R32 Refrigerant: Optimized to run on the next-generation, ozone-safe R32 refrigerant, which improves heat transfer efficiency by 10% and reduces overall system charge compared to older refrigerants.

• Smart Outdoor Management: Features an intelligent on-demand defrost cycle that keeps the outdoor heat exchanger clear of ice in damp, cold conditions, maintaining optimal SCOP performance.

Installation & Operation Insights

• From our engineering teams' experience: The SAC3M-24UHS/I is a high-capacity unit that requires precise layout planning. Since three separate pipe runs (typically 1/4" liquid and 3/8" gas lines) converge at this single block, we pay meticulous attention to maximum line lengths, elevation differences, and proper oil traps.

• We install the unit on heavy-duty, reinforced steel brackets or ground platforms using industrial-grade rubber vibration-absorbing mounts to ensure that compressor resonance does not transmit through the building's structure.

Comparison with Other SENSEI Solutions

Compared to installing three individual split systems, the SAC3M-24UHS/I drastically saves valuable facade space. While the SAC2M-14UHS/I only manages two zones with a lower capacity, this 24,000 BTU unit provides the necessary thermal muscle to handle three larger areas without requiring the jump to a more expensive, semi-industrial 4-port or 5-port outdoor block.

Best Suited For:

• Owners of 3-room apartments, penthouses, or townhouses who face strict housing association rules regarding outdoor unit placement but want independent climate control in every room.

• Commercial spaces and clinics with multiple adjacent rooms up to 75 m² total, where minimal outdoor equipment and quiet indoor operation are required.

Might Not Be Suited For:

• If you require a primary winter heating source in regions where temperatures frequently drop below -15°C for extended periods, we recommend upgrading to SENSEI's low-temperature SKWA/I series, which is rated for operation down to -20°C.