| 摘要 |
The invention relates to an refrigeration apparatus equipped with a refi-igerant circuit (A) in which the following are connected together: a compressor (1) that compresses gaseous refrigerant, a heat-source-side heat exchanger (2), a receiver (3) for collecting liquid refrigerant, an expansion valve (4), a liquid pipe (8) that connects the receiver (3) and the expansion valve (4), a utilization-side heat exchanger (5), and a gas pipe (9) that connects the utilization-side heat exchanger (5) and the compressor (1); and a liquid level detecting means (10) that detects if the surface (L) of the liquid inside the receiver (3) has reached a prescribed level (L0, Lmax), wherein the following are further provided: a refrigerant charging operation control means that executes charging of the refrigerant circuit (A) with refrigerant while creating a refrigerant charging operation state in which the liquid pipe (8) of the refrigerant circuit (A) is filled with liquid refrigerant having a prescribed density; and a refrigerant charging ending means that ends refrigerant charging by the refrigerant charging operation control means based on the detection signal from the liquid level detecting means (10).
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