To speedily perform efficient air-conditioning operation by attaining a suitable refrigerant amount from the start of the air-conditioning operation.
An air conditioner includes a control device 20 which controls the amount of a refrigerant by controlling a high pressure-side flow control device 6 and a low pressure-side flow control device 7 when starting the operation of a compressor 1. The control device 20 makes the opening of the high pressure-side flow control device 6 larger than the opening of the low pressure-side flow control device 7 so as to reserve the refrigerant in a receiver 5 in air-conditioning operation in which a suitable refrigerant amount is small, for example, in a heating operation. In an air-conditioning operation in which the suitable refrigerant amount is large, for example, in a cooling operation, the opening of the low pressure-side flow control device 7 is made larger than the opening of the high pressure-side flow control device 6 so that the refrigerant is not reserved in the receiver 5.
| JPH0282060A | 1990-03-22 | |||
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Shuzo Hinode
Takayasu Kobane
Kiyotaka Fujiwara