| 摘要 |
<p>A heat source unit (1) includes a compressor (11), an electronic expansion valve (13), a heat-source-side heat exchanger (14), an outdoor blower (F), and a controller (30) for electric devices. A hydrothermal exchange unit (2) accommodates water heat exchangers (15, 16), water pipes (6), pumps (21, 22) and a controller (9), and is connected to the heat source unit (1) via refrigerating pipes (7) and electric wiring (8). A tank unit (3) has tanks (4, 5) for storing hot water obtained as a result of heat exchange by the water heat exchangers (15, 16). The hydrothermal exchange unit 2 has a housing (2A). The front, rear, upper, left and right sides of the housing are covered with panels. A bottom plate (45) for the housing is disposed predetermined distance above the lower end of the housing. The housing accommodates the hydrothermal exchange unit (2), and a space below the bottom plate of the housing accommodates connectors (6a to 6d, and 7a, 7b) for the water pipes (6) and refrigerant pipes (7). This completely prevents freezing of the water pipes (6), makes use-side units compact, and improves operation efficiency.</p> |
