High Water Flow Temperature

The temperature of water flow can be maintained at 60°C without using a backup heater, even when the outdoor temperature drops to -20°C*.

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The Super High Power Series and The R410A High Power Series only. The R32 High Power Series is rated for -15°C. The Comfort Series is rated for -10°C.

Heat pumps of ATW Systems work more efficiently and consume less energy than conventional heating systems.

Seasonal space heating energy efficiency (ηS)

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Conditions: Outdoor Temp. 7°C, Heating Temp. 35°C

Outdoor Unit Technology to Achieve high Efficiency

Twin-Rotary Compressor with Linear Control Injection Port

The compressor achieves a high condensing temperature without overheating the discharge gas temperature due to the Linear control injection process used during compression. This makes the condensing temperature higher than in a normal circuit. Higher water temperatures can be achieved by controlling the injection volume according to usage conditions.

High-precision parts

The precision machining of parts has improved the degree of adhesion between parts. Refrigerant leakage from gaps has been reduced, leading to improved compression efficiency and high-efficiency operation. In addition, the contact surfaces between parts have been smoothed and the amount of wear has been reduced, resulting in stable performance over a long period of time.

Low Noise Operation

In the outdoor unit, a larger fan and a soundinsulating structure in the compressor part reduce the maximum operating noise. The Split type High power Series outdoor unit can operate silently at 56 dB(A)* with high energy efficiency.

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10/12 kW models

High-magnetic flux motor

Copper and iron losses are thoroughly suppressed to realize high magnetic flux of the motor. The high magnetic flux produces stronger torque than ever before. Thanks to this, operation with less current is possible, bringing out high-efficiency operation.

Smooth gas flow

The arrangement of parts that do not obstruct refrigerant flow in the compressor leads to highly efficient operation. Broad interpretation of the optimization of refrigerant flow paths has resulted in about 13 patents.

Class A Pump

Energy-saving pump with the ability to adjust the flow rate and pressure to a constant level

High-durability coaxial heat exchanger / Stainless Steel Buffer Tank

Energy-saving performance has also been improved. The buffer tank has anti-corrosion protection thanks to stainless steel material.