AIR CONDITIONER

摘要

Provided is an air conditioner (100) which, when at least one inter-heating-medium heat exchanger (25) that exchanges heat between a heat-source-side cooling medium and a heating medium is used as an evaporator, executes an operation to prevent freezing of the heating medium by interrupting the flow of the heat-source-side cooling medium to the inter-heating-medium heat exchanger (25) functioning as an evaporator and causing the heat-source-side cooling medium to flow to a bypass pipe (20) when an evaporation temperature of the heat-source side cooling medium such that the temperature of the heating medium passing through this inter-heating-medium heat exchanger (25) is at or below the freezing temperature is detected in this inter-heating-medium heat exchanger (25) functioning as an evaporator.