Heat source-side unit and refrigeration cycle apparatus

Abstract

In a heat source-side unit according to the present invention, a temperature sensor is installed on an inter-column connecting part included in a plurality of inter-column connecting parts and located higher than an intermediate position in a vertical direction of a heat exchanger.

1 . A heat source-side unit comprising:
 a heat exchanger including a plurality of heat exchanging units; and   a temperature sensor configured to measure a temperature of refrigerant flowing through the heat exchanger,   the heat exchanger including
 a first header connected to a first heat exchanging unit serving as at least one of the plurality of heat exchanging units, and including a plurality of branching units arranged in a vertical direction, 
 a second header connected to a second heat exchanging unit serving as at least one of rest of the plurality of heat exchanging units, and 
 a plurality of inter-column connecting parts configured to connect parts of a plurality of heat transfer tubes forming the first heat exchanging unit and parts of a plurality of heat transfer tubes forming the second heat exchanging unit, and 
   the temperature sensor being installed on an inter-column connecting part included in the plurality of inter-column connecting parts, the inter-column connecting part being connected to an upper branching unit of the first header at a position higher than an intermediate position in a vertical direction of the heat exchanger.   
     
     
         2 . The heat source-side unit of  claim 1 , wherein the temperature sensor is installed on an inter-column connecting part located uppermost among the plurality of inter-column connecting parts. 
     
     
         3 . The heat source-side unit of  claim 1 , wherein each of the plurality of heat transfer tubes forming the first heat exchanging unit has a hairpin part on an end portion of each of the plurality of heat transfer tubes opposite to an end portion of each of the plurality of heat transfer tubes near the first header,
 wherein each of the plurality of heat transfer tubes forming the second heat exchanging unit has a hairpin part on an end portion of each of the plurality of heat transfer tubes opposite to an end portion of each of the plurality of heat transfer tubes near the second header, and   wherein the plurality of inter-column connecting parts are disposed near the first header and the second header.   
     
     
         4 . The heat source-side unit of  claim 1 , wherein the first header is a stacking-type header having a plurality of plate-shaped parts stacked upon each other. 
     
     
         5 . The heat source-side unit of  claim 1 , wherein the heat transfer tubes are flat tubes. 
     
     
         6 . The heat source-side unit of  claim 1 , comprising a heat source-side fan configured to supply air to the heat exchanger,
 wherein the first heat exchanging unit and the second heat exchanging unit are arranged side by side in a passing direction of the air supplied by the heat source-side fan.   
     
     
         7 . A refrigeration cycle apparatus comprising:
 the heat source-side unit of  claim 1 ; and   a load-side unit connected to the heat source-side unit.