Chilling unit and chilling-unit system

A chilling unit comprising:

• a machine chamber unit formed in an elongated box shape and that houses a compressor and a heat exchanger in the machine chamber unit;
• and
• a plurality of air heat exchangers making up, along with the compressor and the heat exchanger, a refrigerant circuit, the plurality of air heat exchangers being placed on a top portion of the machine chamber unit,
• a pair of air heat exchangers of the plurality of air heat exchangers, located opposite to each other in a short-side direction of the machine chamber unit, being disposed and inclined such that a spacing between upper end portions farther than lower end portions from the machine chamber unit is greater than a spacing between the lower end portions closer than the upper end portions to the machine chamber unit,
• a machine chamber panel forming a side face of the machine chamber unit in the short-side direction including
• a panel body positioned at a central portion of the machine chamber panel, and
• a fixing portion connected to a periphery of the panel body and fixed to the machine chamber unit in contact with the machine chamber unit,
• the panel body being located further outward from the machine chamber unit than is the fixing portion,
• the machine chamber panel including
• a lower-end fixing portion of the fixing portion, the lower-end fixing portion being positioned at a lower end portion of the machine chamber panel, and
• a lower connection portion connecting the panel body and the lower-end fixing portion,
• the lower connection portion being inclined downward from the panel body toward the lower-end fixing portion.