To provide an air conditioner and a control method thereof showing same performance at a time of employing an overload breaker individually controlled by current and temperature while employing an overload breaker simultaneously controlled by current and temperature, and reducing total manufacturing cost without deteriorating overload protection performance of a compressor by adding control logic using existing sensors.
The air conditioner comprises the overload breaker 40 operating according to temperature and current of the compressor 10 and shutting off power supply to the compressor 10, a power off relay 42 turned on and off for operate and stop the compressor 10, an indoor temperature sensing part 60 detecting indoor temperature, an indoor heat exchanger pipe temperature sensing part 61 detecting pipe temperature of an indoor heat exchanger, and a control part 30 controlling operation of the power relay 42 based on temperature difference between detected indoor temperature and pipe temperature of the indoor heat exchanger.
COPYRIGHT: (C)2008,JPO&INPIT
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro