An air conditioner includes a heat source unit having a compressor, a first heat exchanger configured to cause heat exchange between a refrigerant and liquid fluid, a second heat exchanger configured to cause heat exchange between the refrigerant and air, and a valve configured to switch to supply or not to supply the second heat exchanger with the refrigerant, and a controller configured to control to operate the compressor and to open or close the valve. The controller opens the valve to supply the second heat exchanger with the refrigerant to cause the second heat exchanger to function as a heat absorber when assessing that the refrigerant sent to the utilization unit needs to be decreased in quantity during cooling operation in which the first heat exchanger functions as a radiator.

An air conditioner includes a heat source unit having a compressor, a first heat exchanger configured to cause heat exchange between a refrigerant and liquid fluid, a second heat exchanger configured to cause heat exchange between the refrigerant and air, and a valve configured to switch to supply or not to supply the second heat exchanger with the refrigerant, and a controller configured to control to operate the compressor and to open or close the valve. The controller opens the valve to supply the second heat exchanger with the refrigerant to cause the second heat exchanger to function as a heat absorber when assessing that the refrigerant sent to the utilization unit needs to be decreased in quantity during cooling operation in which the first heat exchanger functions as a radiator.

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

An air-conditioning system includes a heat source unit, an air conditioner connected via piping to the heat source unit and configured to perform heat exchange between water supplied by the heat source unit and indoor air, a water circulation device for circulating the water between the heat source unit and the air conditioner, and an air-conditioning control device. The air-conditioning control device controls the heat source unit to lower temperature of the water flowing into the air conditioner, in accordance with an increase in an indoor humidity, and controls the water circulation device to lower temperature of the water flowing from the air conditioner back to the heat source unit, in accordance with an increase in an indoor temperature.

An air-conditioning system includes a heat source unit, an air conditioner connected via piping to the heat source unit and configured to perform heat exchange between water supplied by the heat source unit and indoor air, a water circulation device for circulating the water between the heat source unit and the air conditioner, and an air-conditioning control device. The air-conditioning control device controls the heat source unit to lower temperature of the water flowing into the air conditioner, in accordance with an increase in an indoor humidity, and controls the water circulation device to lower temperature of the water flowing from the air conditioner back to the heat source unit, in accordance with an increase in an indoor temperature.

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

A method by a controller of a cooling system includes calculating a difference between a first temperature of ambient air and a second temperature of pre-cooled air. The pre-cooled air is ambient air that has been cooled by water from a water distribution system before it enters one or more condenser coils. The method further includes determining that the difference between the first and second temperatures is less than or equal to a predetermined temperature difference, and in response, determining that the first temperature is greater than or equal to a minimum temperature. The method further includes, if the first temperature is greater than or equal to the minimum temperature, instructing the water distribution system to distribute the water to pre-cool the ambient air for a predetermined length of time and to disable the distribution of the water after the predetermined amount of time has elapsed.

An electronic apparatus is provided. The electronic apparatus includes a memory storing complex command information including a plurality of functions and the order information of the plurality of functions, a communication interface, and a processor configured to control the communication interface to perform Bluetooth communication with a remote control apparatus, and based on a control signal being received from the remote control apparatus, acquire a plurality of function informations included in the control signal, and based on identifying that the plurality of function informations correspond to the plurality of functions included in the complex command information, perform control operations corresponding to the plurality of function informations continuously based on the order information included in the complex command information.

Air conditioner units and methods for operating air conditioner units are provided. A method includes determining a steady state speed of a blower fan of the air conditioner unit. The method further includes receiving a call for heating and activating the blower fan in response to the call for heating. The method further includes measuring a speed of the blower fan after activating the blower fan and comparing the measured speed of the blower fan to the steady state speed of the blower fan. When the measured speed of the blower fan is greater than the steady state speed of the blower fan, the method includes disabling one of a plurality of heater banks of a heating unit of the air conditioner unit.