Air conditioner

An air conditioner, comprising:

• an outdoor unit including a compressor and an outdoor heat exchanger configured to heat-exchange compressed refrigerant;
• an indoor unit having an air inlet and an air outlet, wherein the indoor unit is connected to the outdoor unit by a first pipe through which refrigerant discharged from the compressor flows and a second pipe through which refrigerant discharged from the outdoor heat exchanger flows;
• a blowing fan disposed in the indoor unit;
• a main heat exchanger configured to heat-exchange air flowing into the indoor unit through the air inlet, wherein the main heat exchanger is connected with the second pipe;
• a reheat exchanger disposed downstream of the main heat exchanger and connected with the first pipe;
• a waste heat exchanger disposed upstream of the main heat exchanger, wherein the waste heat exchanger is configured to heat-exchange the air flowing into the indoor unit through the air inlet and condensate water which is produced at the main heat exchanger, wherein the air flowing into the indoor unit through the air inlet is cooled by the waste heat exchanger, is dehumidified by the main heat exchanger, and is heated by the reheat exchanger;
• and
• a drain that supplies the condensate water produced at the main heat exchanger to the waste heat exchanger, wherein the drain includes a drain pan in which the condensate water is collected, and wherein the main heat exchanger, the reheat exchanger, and the waste heat exchanger are disposed such that at least a portion of each is positioned inside of the drain pan.

An air conditioner, comprising:

• an outdoor unit including a compressor and an outdoor heat exchanger configured to heat-exchange compressed refrigerant;
• an indoor unit having an air inlet and an air outlet, wherein the indoor unit is connected to the outdoor unit by a first pipe through which refrigerant discharged from the compressor flows and a second pipe through which refrigerant discharged from the outdoor heat exchanger flows;
• a blowing fan disposed in the indoor unit;
• a main heat exchanger configured to heat-exchange air flowing into the indoor unit through the air inlet, wherein the main heat exchanger is connected with the second pipe;
• a reheat exchanger disposed downstream of the main heat exchanger and connected with the first pipe;
• and
• a waste heat exchanger disposed upstream of the main heat exchanger, wherein the waste heat exchanger is configured to heat-exchange the air flowing into the indoor unit through the air inlet and condensate water which is produced at the main heat exchanger, wherein the waste heat exchanger is supplied with the condensate water through an inlet formed at a lower portion thereof and discharges the condensate water through an outlet formed at an upper portion thereof, and wherein the air flowing into the indoor unit through the air inlet is cooled by the waste heat exchanger, is dehumidified by the main heat exchanger, and is heated by the reheat exchanger.