Relay unit and air-conditioning apparatus including relay unit

A relay unit comprising:

• a housing with a box shape, the housing having a lower portion having four side faces and an outlet formed in each of the four side faces;
• a heat exchanger accommodated in the housing;
• and
• a drain pan located below the heat exchanger to receive drain water,
• at a front face of the lower portion of the housing, a sheet metal cover in which the outlet is formed being provided such that the sheet metal cover is removable,
• the drain pan including
• a plate with a rectangular shape, the plate having four side portions,
• a side wall portion extending upward from each of the four side portions of the plate, and
• a drain socket provided in the side wall portion located forward or rearward, and configured to be connected to a drain hose,
• the drain pan being accommodated in the housing such that the drain pan is freely inserted and removed in a front-rear direction in a state in which the sheet metal cover is removed from the housing and the drain hose is not connected to the drain socket,
• the drain pan being freely reversed front to rear to be accommodated in the housing when the drain hose is not connected to the drain socket,
• the outlet formed in a rear face of the lower portion of the housing being formed
• at a location where the outlet faces the drain socket in a state in which the drain pan is accommodated in the housing such that the drain socket is located rearward, and
• a space being provided between the sheet metal cover and the drain pan to run the drain hose in a left-right direction.

A relay unit comprising:

• a housing with a box shape, the housing having a lower portion having four side faces and an outlet formed in each of the four side faces;
• a heat exchanger accommodated in the housing;
• and
• a drain pan located below the heat exchanger to receive drain water,
• at a front face of the lower portion of the housing, a sheet metal cover in which the outlet is formed being provided such that the sheet metal cover is removable,
• the drain pan including
• a plate with a rectangular shape, the plate having four side portions,
• a side wall portion extending upward from each of the four side portions of the plate, and
• a drain socket provided in the side wall portion located forward or rearward, and configured to be connected to a drain hose,
• the drain pan being accommodated in the housing such that the drain pan is freely inserted and removed in a front-rear direction in a state in which the sheet metal cover is removed from the housing and the drain hose is not connected to the drain socket,
• the drain pan being freely reversed front to rear to be accommodated in the housing when the drain hose is not connected to the drain socket,
• a space being provided between the sheet metal cover and the drain pan to run the drain hose in a left-right direction.