| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerant flow passage switching unit and a flow passage switching assembly unit which have excellent compactness and which have suppressed performance deterioration in an air conditioning system.SOLUTION: A first unit of a BS unit includes a first part R1, a second part R2, a third part R3, a connection part J1, a first motor-operated valve Ev1 and a second motor-operated valve Ev2. In the first part R1, the first motor-operated valve Ev1 is disposed, and the first part R1 is connected to a suction gas communication pipe via a second header 56. In the second part R2, the second motor-operated valve Ev2 is disposed, and the second part R2 is connected to a high/low pressure gas connection pipe 13 via a first header 55. The third part R3 is connected to a gas pipe. The connection part J1 is connected to the first part R1, the second part R2 and the third part R3, and connects these. The second motor-operated valve Ev2 is disposed at a position higher than the first motor-operated valve Ev1. The third part R3 is connected to the connection part J1 at a lowermost part B1. |
