Heat source unit
According to one embodiment, a heat source unit apparatus includes air heat exchangers, each includes a plurality of fins arranged at prescribed intervals, heat exchanging pipes penetrating the fins, and bent strips extending at sides and bent in the same direction, and a heat exchange module includes two air heat exchangers, each having the bent strips opposed to those of the other air heat exchanger, the air heat exchangers being inclined such that lower edges are close to each other and upper edges are spaced apart, whereby the heat exchange module is shaped like a letter V as seen from side.
1. A heat source unit comprising:
a plurality of pairs of air heat exchangers, each pair including at least one finned tube, each air heat exchanger including a flat plate part and bent strips, the bent strips being configured of opposite edge portions of the flat plate part bent in a same direction, and each air heat exchanger being substantially in a shape of a letter U as viewed from above;
shield plates configured to close a space between the bent strips of each pair of air heat exchangers and the bent strips of an adjacent pair of air heat exchangers; and
a plurality of refrigeration cycles, each refrigeration cycle comprising one of the pairs of air heat exchangers and refrigeration cycle components;
a first water heat exchanger comprising a first water passage and a plurality of first refrigerant passages; and
a second water heat exchanger comprising a second water passage and a plurality of second refrigerant passages, the second water passage connected to the first water passage in series, wherein:
the air heat exchangers within each pair are arranged in a direction facing each other, with opposed bent strips of the air heat exchangers within each pair extending toward each other, and having a gap between upper ends of the air heat exchangers within each pair that is wider than a gap between lower ends of the air heat exchangers within each pair;
the plurality of pairs of air heat exchangers are arranged side by side along a direction orthogonal to the direction in which the air heat exchangers of each pair face each other, and the plurality of pairs are spaced apart such that air flows between the bent strips of one pair of air heat exchangers and an adjacent pair of air heat exchangers; and
a first set of the plurality of refrigeration cycles is connected to the refrigerant passages of the first water heat exchanger and a second set of the plurality of refrigeration cycles is connected to the refrigerant passages of the second water heat exchanger.