Energy saving service providing method, motor specification determining method, compressor version upgrade service method, energy saving service providing method using a permanent magnet motor drive device, compressor replacement method, refrigeration air conditioner

摘要

An energy saving service includes: a service contract conclusion step in which a service contract is concluded with a customer who has purchased or will purchase a product with a permanent magnet motor; a driving device provision step in which a driving device which can drive a permanent magnet motor with any specifications is provided on the basis of the service contract; and a product upgrade step in which the driving device drives,the permanent magnet motor so as to improve the performance of the product with the permanent magnet motor, thereby upgrading the product with the permanent magnet motor.