摘要:
An air-conditioning apparatus 100 has at least one intermediate heat exchanger 15 that exchanges heat between a refrigerant changing in two phases or a refrigerant in a supercritical state and a heat medium such as water and anti-freezing fluid different from the refrigerant, a refrigeration cycle in which a compressor 10, a heat-source side heat exchanger 12, at least one expansion valve 16, and a refrigerant-side channel of the intermediate heat exchanger 15 are connected via a pipeline through which the refrigerant flows, and a heat-medium circulation circuit in which a heat-medium side channel of the intermediate heat exchanger 15, a pump 21, and a use-side heat exchanger 26 are connected via a pipeline through which the heat medium flows, in which in the heat-medium circulation circuit, a fourth temperature sensor 34 that detects a temperature of the heat-medium flowing out of the use-side heat exchanger 26 is provided, and leakage of the heat medium from the heat-medium circulation circuit is detected on the basis of a change amount of a detected temperature of the fourth temperature sensor 34.
摘要:
A refrigerant cooler disposed in a refrigerant circuit of a refrigeration cycle has a heat rejecting plate and a heat rejecting pipe through which refrigerant flows, the heat rejecting pipe has a refrigerant inlet pipe, a refrigerant outlet pipe, and at least one bent portion connecting the refrigerant inlet pipe and the refrigerant outlet pipe, a component of a power conversion device is in surface contact with one surface of the heat rejecting plate, the heat rejecting pipe is in surface contact with the other surface of the heat rejecting plate, and a path of a heat source side heat exchanger is located above a contact portion between the refrigerant cooler and the component of the power conversion device.
摘要:
To provide a refrigeration cycle apparatus that achieves load balancing (for example, the balance between the cooling load and the heating load, and the balance between the cooling load and the heating and hot water loads) to increase system COP and an information transfer method used in the refrigeration cycle apparatus. A refrigeration cycle apparatus 100 operates a plurality of indoor units so that the thermal cooling load and the thermal heating load to be executed by the plurality of indoor unit are balanced.
摘要:
Provided are air conditioning facilities 23 that include an indoor unit 53 and an outdoor unit 51, a dedicated transmission line 33, a general-purpose equipment controller 11, and an energy management gateway 13. The energy management gateway 13 includes a dedicated transmission line 33 that enables communication with the air conditioning facilities 23 via the dedicated transmission line 33, a management controller 359 that collects management information preregistered for managing the air conditioning facilities 23 from among various information received via the dedicated transmission line 33, and a processing controller 355 that executes computational processing related to management of the air conditioning facilities 23 on the basis of the collected management information, and controls the air conditioning facilities 23. The general-purpose equipment controller 11 receives or accepts input of running information corresponding to each of the air conditioning facilities 23 and general-purpose equipment 21, and controls the general-purpose equipment 21 on the basis of the running information.
摘要:
An information transfer system for a refrigeration air-conditioning apparatus in which one or more heat-source units 1 for the refrigerating/air conditioning apparatus, one first relay unit 3a, and one or more second relay units 3b and 3c are connected by refrigerant piping, and the second relay units 3b and 3c and one or more indoor units 2a to 2d are connected by water piping, wherein communications are performed discretely between a pair of the heat-source unit 1 and the first relay unit 3a, a pair of the first relay unit 3a and the second relay units 3b and 3c, and a pair of the second relay units 3b and 3c and the indoor units 2a to 2d through transmission lines respectively.
摘要:
An air-conditioning apparatus 100 is provided with a heat-source device 1 that supplies a refrigerant, a relay unit 3 that exchanges heat of a heat medium such as water or anti-freezing fluid supplied from the heat-source device 1 in an intermediate heat exchanger 15 and supplies the heat medium, an indoor unit 2 that exchanges heat between a use side heat exchanger 26 through which the heat medium supplied from the relay unit 3 flows and indoor air and performs cooling or heating in the indoor space, a controller that controls operations of the heat-source device 1, the relay unit 3 and the indoor unit 2, and a third temperature sensor 33 that detects the temperature of the heat medium flowing through the use side heat exchanger 26, and if an abnormality in at least one of the heat-source device 1 and the relay unit 3 is detected, the controller continues the operation of the indoor unit while the temperature detected by the third temperature sensor remains within a first predetermined temperature range.
摘要:
An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a heat-source-side heat exchanger, a heat-source-side expansion device, and a circuit-circuit heat exchanger are connected via a refrigerant pipe and refrigerant circulates, and a heat medium circuit in which a pump, the circuit-circuit heat exchanger, a load-side expansion device, and a load-side heat exchanger are connected via a heat medium pipe and a heat medium circulates. The air-conditioning apparatus includes a radiator that is connected to the heat medium pipe and a control unit that is attached to the radiator. The circuit-circuit heat exchanger exchanges heat between the refrigerant circulating in the refrigerant circuit and the heat medium circulating in the heat medium circuit. The control unit is cooled via the radiator by the heat medium flowing in the heat medium pipe.