Development of HCFC-22 alternative refrigerant air conditioners

摘要

The reduction of HCFC (refrigerants, which containing chlorine), is a major task in protecting the ozone layer and is underway on a national level with the target of completely abolishing the use of HCFCs by 2020, as stipulated in the Montrealprotocol. As a consequence the air conditioner manufacturing industrz has undertaken to switch to HFC (chlorine free refrigerants). Accordingly Mitsubishi Heavy Industries, Ltd. (MHI) has totally changed its room and packaged air conditioners, withimprovements to compressors, inverters, heat exchangers and other parts thereby developing air conditioners which have the same or higher efficiency and reliability than those using HCFC-22.