To obtain a refrigerating air conditioner for a shop in which a cooling performance is not lowered during a cooling operation, an air conditioning side compressor is not stopped during a cooling overload condition and energy is saved.
A refrigerating air conditioner for a shop comprises an air conditioning side refrigerating cycle 60 including an air conditioning side compressor 1, a four-way valve 2, a first heat recovery heat exchanger 30, an air conditioning side outdoor heat exchanger 5, an outdoor expansion valve 4, an indoor expansion valve 8, an indoor heat exchanger 9 and an accumulator 3 which are connected in an annular form and a refrigerating side refrigerating cycle 61 including a refrigerating side compressor 20, a second heat recovery heat exchanger 30' formed integrally with the first heat recovery heat exchanger 30 for performing a heat exchange, a refrigerating side outdoor heat exchanger 21, a showcase expansion valve 24 and a showcase evaporator 25 which are connected in an annular form. Thus, the air conditioning side outdoor heat exchanger can perform a heat exchange and exhuast heat equally to a case where the refrigerating side refrigerating cycle 61 and the air conditioning side refrigerating cycle 60 are respectively individually operated. Accordingly, an air conditioning capacity can be prevented from being lowered upon cooling operation and the stop of the air conditioning side compressor 1 can be avoided.
MAEDA MUNEKAZU
KURAMOTO TETSUEI
