Air conditioner with a new hybrid equipment of cooling storage and water heater (ESWAC) is proposed and designed. In summer

storage coils worked as evaporator and ice storage was done during off-peak electrical demand period

and then storage coils were used as super cool exchanger to supercool the refrigerant from the condenser. It cannot only balance power load

but improves the coefficient of performance (COP) of the air conditioner. Moreover

ESWAC can be HP water heater to supply hot water. Finally

experimental study for the operation process of ESWAC prototype has been done. The influence of different structure and position of coils on the performance of ESWAC was studied during the charging period. The results show that ESWAC is feasible. Compared with original air conditioner

average cooling capacity increases by 28.2%

and COP increases by 21.5%. The power of ESWAC is only 36% of that of electrical water heater with the same capacity of hot water.