Air conditioner that corrects refrigerant quantity...

Details Air conditioner that corrects refrigerant quantity... Air conditioner that corrects refrigerant quantity...

2007-03-19

2011-12-06

Tyler, Cheryl J (Department: 3744)

Refrigeration

With indicator or tester

Condition sensing

C062S127000, C062S249000, C062S324100

Reexamination Certificate

active

08069682

ABSTRACT:
An air conditioner performs a refrigerant quantity judging operation to judge the refrigerant quantity in a refrigerant circuit, and includes a heat source unit, utilization units, expansion mechanisms, a first refrigerant gas pipe, a second refrigerant gas pipe, a refrigerant liquid pipe, switching mechanisms, a temperature detector, and a controller. The heat source unit includes a compressor and a heat source side heat exchanger. The first refrigerant gas pipe is connected to the discharge side of the compressor. The switching mechanism can switch between a first state and a second state. The temperature detector is mounted on the first refrigerant gas pipe, and configured to detect a refrigerant temperature on the first refrigerant gas pipe side and output a refrigerant temperature detection value. The controller corrects the refrigerant quantity judged by a refrigerant quantity judging operation based on the refrigerant temperature detection value.

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