Function Details ESIE12-0658 Function and Control3.2.12 High Pressure Protection ControlIn order to prevent abnormal high pressures in the system and hence avoiding activation of thehigh pressure safety device the below control function will be activated.3.2.13 Heating Control at High Outdoor Air TemperatureUnder the condition of heating overload, control the outdoor unit fan in order to secure thedifference of elevation pressure and the pressure ratio of the compressor.(Cooling) (Heating)Normal operationHp > 3.57 MPa Hp < 3.42 MPa Hp > 3.53 MPaHp < 3.52 MPaHp < 3.42 MPaHp > 3.67 MPaCompressor operationfrequency –1 step/10 sec.Compressor operationfrequency +1 step/1 min.Normal operationCompressor operationfrequency B HzCompressor stopAbnormal stop (E3 indication)Compressor operationfrequency +1 step/5 min.Compressor operationfrequency A HzCompressor stopAbnormal stop (E3 indication)OR • HPS activates• Hp > 3.92 MPafor 1 minute• Hp < 3.24 MPa• 30 sec elapsed15 times or lessstopping in 300minutes• Hp > 3.92 MPa• HPS activates• Stopped 16 times in300 minutes• Stopped 16 timesin 300 minutes&ORRZQG71L RZQG100-140LA Hz 118.5 Hz 94,5 HzB Hz 57 Hz 94,5 HzNormal• Hp-Lp < 0.39 MPa• Hp > 3.43 MPaOR&• &• Hp < 2.75 MPaOR• Hp-Lp > 0.69 MPa• OR•&• Lp < 0.12 MPa((((((Outdoor unit fan-1 step/30 sec.Outdoor unit fan+1 step/30 sec.• Hp-Lp > 0.59 MPa• Hp < 3.33 MPa• Hp < 3.24 MPa• Outdoor unit fan = 8 step
