| 摘要 |
PROBLEM TO BE SOLVED: To connect a plurality of outdoor units without changing the capacity of an ice thermal storage unit by providing a regulating means to regulate the refrigeration capacity during the thermal storage utilizing room cooling operation according to the number of the outdoor units to be connected. SOLUTION: Two outdoor units 100A, 100B are connected in parallel, but the number of the outdoor units to be connected can be changed. That means, for example, three or four or more outdoor units are connected according to the air conditioning load. The refrigeration capacity during the thermal storage utilizing room cooling operation is changed by controlling the supercooling without changing the capacity of an ice thermal storage unit 200. During the regular room cooling operation (non-thermal storage room cooling operation) which is not the thermal storage utilizing room cooling operation, the refrigeration capacity according to the total horsepower of the outdoor units 100A, 100B can be obtained. It is necessary to increase the supercooling degree to increase the refrigeration capacity. The supercooling degree is increased by reducing the opening of an electronic control valve MV 1 in the ice thermal storage unit 200. |
