| 主权项 |
1. An air conditioning system comprising:
an outdoor unit that exchanges heat between water and refrigerant and in which low pressure and high pressure are generated; a plurality of indoor units that is connected to the outdoor unit; a water temperature detector that detects an inflow water temperature, which is a temperature of water flowing into the outdoor unit; a controller that controls the low pressure in the outdoor unit at a fixed pressure during a cooling operation; and an equipment controller that is arranged in water supplying equipment, wherein: the equipment controller stores a set lower limit value that specifies a lower limit of the inflow water temperature, the lower limit value is set to maintain a pressure difference between the high pressure and the low pressure in the outdoor unit at a predetermined value or greater, the predetermined value of the pressure difference enables a cooling operation to be performed, the lower limit value is set to be smaller as a minimum cooling capacity increases, and the minimum cooling capacity is the minimum value of a cooling capacity of an indoor unit arrangement formed by the indoor units; and the equipment controller determines whether or not the inflow water temperature is greater than or equal to the set lower limit value when starting a cooling operation, the equipment controller performs pressure difference control for limiting decreases in the pressure difference of the outdoor unit when the inflow water temperature is less than the set lower limit value, and the equipment controller does not perform the pressure difference control when the inflow water temperature is greater than or equal to the set lower limit value. |
