1. Patent throttle, high energy. 2. Parallel Technology, IPLV increased by 28% high static Duct air condtiioner1 ... load into the defrost state. 2. Parallel Technology, IPLV increased by 28% with double compressors in parallel technology, IPLV can increase 28%; ... indoor temperature fluctuations, but also improve the energy efficiency unit in the interim and full year season season energy efficiency, ...