Refrigeration cycle apparatus and indoor unit

Abstract

A refrigeration cycle apparatus includes an indoor unit provided with a first air inlet and a second air inlet; a first heat exchange unit located in a first air flow passage connecting the first air inlet and an air outlet; a second heat exchange unit located in a second air flow passage connecting the second air inlet and the air outlet, the second heat exchange unit being connected to the first heat exchange unit such that the second heat exchange unit is positioned downstream of the first heat exchange unit during heating operation; a first damper capable of adjusting an amount of air entering from the first air flow passage to the second air flow passage; and a second damper provided at the second air inlet and capable of adjusting an amount of air to be sucked from the second air inlet.

1 . A refrigeration cycle apparatus comprising:
 an indoor unit provided with a first air inlet communicating with an inside of a room and a second air inlet communicating with outside of the room;   a first heat exchange unit located in a first air flow passage connecting the first air inlet and an air outlet;   a second heat exchange unit located in a second air flow passage connecting the second air inlet and the air outlet, the second heat exchange unit being connected to the first heat exchange unit such that the second heat exchange unit is positioned downstream of the first heat exchange unit when the refrigeration cycle apparatus performs heating operation;   a first damper capable of adjusting an amount of air entering from the first air flow passage to the second air flow passage; and   a second damper provided at the second air inlet and capable of adjusting an amount of air to be sucked from the second air inlet.   
     
     
         2 . The refrigeration cycle apparatus of  claim 1 , wherein
 a partition wall is provided inside the indoor unit, the partition wall separating the first air flow passage from the second air flow passage,   the partition wall is provided with a communication portion through which the first air flow passage and the second air flow passage communicate with each other, and   the first damper is installed at the communication portion, and is capable of adjusting an amount of air flowing through the communication portion.   
     
     
         3 . The refrigeration cycle apparatus of  claim 1 , comprising:
 a first fan configured to suck air from the first air inlet and feed the air to the first heat exchange unit; and   a second fan configured to suck outside air from the second air inlet and feed the air to the second heat exchange unit.   
     
     
         4 . The refrigeration cycle apparatus of  claim 1 , wherein a filter removing dust and dirt is installed at the second air inlet. 
     
     
         5 . The refrigeration cycle apparatus of  claim 1 , wherein the second damper is larger in size than the second air inlet. 
     
     
         6 . The refrigeration cycle apparatus of  claim 1 , wherein the first heat exchange unit has a volume larger than a volume of the second heat exchange unit. 
     
     
         7 . The refrigeration cycle apparatus of  claim 1 , wherein the second air inlet is provided at a rear face of the indoor unit. 
     
     
         8 . The refrigeration cycle apparatus of  claim 1 , wherein the second air inlet is provided at a lateral face of the indoor unit.