<p>A refrigeration cycle device (100) is provided with an expander-integrated compressor (101) and a second compressor (102). A first oil sump (13) of the expander-integrated compressor (101) is communicated with a second oil sump (14) of the second compressor (102) by means of an interconnection pipe (30). A first valve (31) capable of interrupting the flow of oil within the interconnection pipe (30) is provided to the interconnection pipe (30). The following operations are performed to stop the operation of the refrigeration cycle device (100): (a) an oil amount adjusting operation which includes a first operation for moving the oil in the second oil sump (14) to the first oil sump (13) through the interconnection pipe (30); and (b) a stop processing which includes a step of closing the first valve (31), a step of stopping the expander-integrated compressor (101), and a step of stopping the second compressor (102).</p>
