17 DC fan motor Outer rotor DC motor for higher efficiency J Larger rotor diameter results in greater force for the same magnetic field, leading to better efficiency J Better control, resulting in more fan steps to match the actual capacity Sine wave DC inverter Optimizing the sine wave curve results in smoother motor rotation and improved motor efficiency. E-Pass heat exchanger Optimising the heat exchanger’s path layout prevents heat being transferred from the overheated gas section to the sub-cooled liquid section which is a more efficient way to use the heat exchanger. Power consumption Predefined limit Time I-demand function Limit maximum power consumption. The newly introduced current sensor minimizes the difference between the actual power consumption and the predefined power consumption. Conventional motor with inner rotor Rotor Rotor Stator Stator Daikin outer rotor F F Standard heat exchanger In 85 °C 27 °C Out 45 °C 55 °C 55 °C 50 °C e-Pass heat exchanger 43 °C In 85 °C 27 °C Out 45 °C 60 °C 55 °C
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