The draft ministerial regulation mandates room air conditioner to conform with the standard TIS 2134 –25XX Room air conditioner – energy efficiency. This standard covers the following: – Room air conditioners with net total cooling capacity not exceeding 18000 W with rated voltage of 250 V for single phase air conditioners and rated voltage 600 V for multiphase air conditioners, including ducted air conditioners with net total cooling capacity less than 8000 W, intended to operate at external static pressure less than 25 Pa. – Condensing unit and fan coil unit. This standard does not cover: – Ducted air conditioners except for the above mentioned. – Multiple split system air conditioners – Portable air conditioners – Air curtains – Vehicle air conditioners – Water cooled condenser air conditioners