31 January 2013

Evaluation of part-load performance of a multi-split type air conditioner for buildings


Partial-load performance tests were made on a multi-split type air conditioner for buildings with rated cooling
and heating capacities of 45 kW (cooling) and 50 kW (heating). For the cooling performance test, the outdoor air
temperature was raised from 20 °C to 45 °C, and the indoor cooling load was changed from 12.5 % to 100 % of
the rated cooling capacity of the air conditioner. Cooling COPs were measured at 36 test points. For the heating
performance test, COPs were measured at 31 test points. Very detailed partial load performance of the unit was
delivered by these tests.