Main revision contents of GB/T 19232-2019 Fan coil unit

Presents the revision background of product national standard GB/T 19232-2019 Fan coil unit. Expounds the main revision contents, including six aspects: expanding the air rate and pressure range of fan coil units, adding the regulations on the energy efficiency of fan coil units, adding the regulations on single heating units, four-pipe units and low water temperature heating conditions, adding the regulations on dry fan coil units, reducing the input power rating of AC motor units by 3% and adding the requirements for permanent magnet synchronous motor units, and adding the noise test of fan coil units.