The starting current is relatively large 37.

Xinke Air Conditioning Repair - Energy Saving Analysis of Inverter Air Conditioners

(1) The compressor of an inverter air conditioner operates for a short time at high frequency, high speed, and full load, but works for a long time at low frequency, low speed, and light load. In this state, due to the smaller refrigeration capacity of the compressor, the heat exchange area of the indoor and outdoor heat exchangers does not change, so the indoor heat absorption (heat release) efficiency and the outdoor heat dissipation (heat absorption) effect are greatly improved, and the overall machine operation efficiency is also greatly improved. Compared with ordinary air conditioners that have long start-up times and frequent on/off cycles, the energy-saving effect is more significant.

(2) Ordinary air conditioners are directly powered by a 50Hz AC power grid and have a large starting current; while inverter air conditioners use soft start, and the compressor starts at low speed and low current, resulting in lower power loss.

(3) In the refrigeration system of an inverter air conditioner, electronic expansion valves are used for throttling, enabling the air conditioning refrigeration to operate in a highly efficient state. The electronic expansion valve closely cooperates with the inverter to achieve energy saving.

(4) Since the inverter air conditioner runs continuously without stopping, it avoids frequent start-stop cycles of the compressor, reducing the losses caused by changes in refrigerant pressure, and lowering the electricity consumption caused by frequent starts of the compressor.

(5) Inverter air conditioners use more efficient switch-mode power supplies, which are more energy-efficient than ordinary air conditioners. DC inverter air conditioners do not have an inversion stage, making them more energy-efficient than AC inverter air conditioners in this aspect.

(6) In DC inverter air conditioners, brushless DC motors are used for the compressor motor, and DC compressors are more energy-efficient than AC compressors.

Source: http://blog.sina.com.cn/xinkekt