Air-conditioning apparatus

An air-conditioning apparatus, comprising:

• at least one indoor unit;
• at least one relay unit;
• a refrigerant cycle for a refrigerant including a compressor, a four way valve and a heat exchanger that supplies the refrigerant that changes in two phases or is in a supercritical state to the at least one relay unit wherein
• the at least one relay unit is configured to exchange heat between the refrigerant from the refrigerant cycle and a heat medium such as water or anti-freezing fluid different from the refrigerant in an intermediate heat exchanger and supplies the heat medium to the at least one indoor unit, and
• the at least one indoor unit that is configured to exchange heat between the heat medium supplied from the relay unit and air of a region to be air-conditioned in a use side heat exchanger and perform cooling or heating in the region to be air-conditioned;
• a microcomputer arranged as a controller and configured to control operation of the refrigerant cycle, the relay unit and the indoor unit;
• and
• a first temperature detection portion that detects the temperature of the heat medium flowing through the use side heat exchanger, wherein
• if an operational parameter of at least either the refrigerant cycle or the relay unit occurs that is determined by the controller to be outside of a normal operational parameter such that the controller is configured to stop the refrigerant cycle or the at least one relay unit, the controller is configured to continue the operation of the indoor unit while the temperature detected by the first temperature detection portion remains within a first predetermined temperature range, and stop the operation of the indoor unit if the temperature detected by the first temperature detection portion is not within the first predetermined temperature range.