... reverse warning, prevent freezing protection and high and low pressure protection,etc..This machine has stable performance and ... 253.753.755.5Lift (m)202020202020222020202020222223CondenserTypeFinned copper tube+low noise outer rotor fan Cooling air flow(m3/h) ... .62Safety protectionCompressor over temperature,over current,high and low pressure,over temperature,flow switch,phase sequence,phase ...