... 3.Air volume:1000m3/h 4.CE and RoHs certification HEU-S200 outdoor LED screen air to air heat exchanger Introduction ... :HEU-S Series Base Station cabinet air exchaner system is specially ... /h3000150020002500Static pressurePa>50>50PowerW270374627700VoltageV AC:220 V( HEU-S200 /HEU-S300 /HEU-S400) AC:380 V( HEU-S500)Temp. RangeĀ°C-40 to 70 ...