Outdoor unit

An outdoor unit for a refrigeration cycle apparatus comprising:

• a housing comprising a ventilation opening;
• an outdoor heat exchanger housed in the housing;
• a communication unit which is provided in the housing at a position facing the ventilation opening, and performs contactless data communication with a nearby information terminal;
• an electrical component box housed in the housing;
• a main control unit which is provided in the electrical component box and connected to the communication unit via a signal line, and which sets data necessary to operate the outdoor unit and diagnoses a state of the outdoor unit based on data communication with the information terminal via the communication unit;
• and
• an outside air temperature sensor which detects outside air temperature;
• wherein the communication unit comprises:
• a data communication unit which performs the contactless data communication with the information terminal;
• a nonmagnetic base portion which holds the data communication unit and the outside air temperature sensor, and comprises a first ventilation opening at a position facing the outside air temperature sensor;
• and
• a nonmagnetic cover portion which covers the data communication unit and the outside air temperature sensor on the nonmagnetic base portion, and comprises a second ventilation opening at a position facing the outside air temperature sensor.