| 摘要 |
A refrigerant channel switching unit in which a channel switching valve (EV1, EV2, EV3) is accommodated in a unit case (33) configured by an electrical component box (35) attached to a case body (34), wherein the electrical component box (35) can be attached to the case body (34) at a first position closing one entire side of the case body (34) and at a second position forming a maintenance opening (39) on a portion of that side of the unit case (33). By temporarily fixing the electrical component box (35) in the second position, maintenance work for the channel switching valve (EV1, EV2, EV3) can be easily performed. |
