ESIE12-06 Function DetailsFunction and Control 633.2.20 Protection Control by Overall CurrentMonitors the overall current and restricts the upper limit compressor operating frequency toprevent circuit breakers from exceeding the rated capacity.Upper limit current (A)Takes the following values depending on the outside temperature.Also varies depending on model.3.2.21 Freeze-up Prevention ControlThe thermostat turns OFF due to indoor unit heat exchanger temperature in order to avoidformation of ice on the indoor unit heat exchanger.(For details, refer to “Freeze-up Prevention Control”.)3.2.22 Shortage of Refrigerant Detection ControlWhen judged that the deficiency in performance has been caused by the shortage of refrigerant,the abnormal stop is activated with the error code “U0” being displayed on the remote controller.3.2.23 Piping and Wiring Incompatibility Detection ControlWhen the connecting pipe and the transmission connecting line are connected each to adiffering outdoor unit, the abnormal stop is activated with the error code “UF” being displayed onthe remote controller.3.2.24 Pump Down Residual Operation (Only for RZQG100-140L)Conducts pump down residual operation when compressor stops to collect refrigerant inevaporator for preventing liquid refrigerant from remaining in the evaporator.Contents of ControlCompressor: 70 HzElectronic expansion valve: 0 plsEnding ConditionRZQG71L RZQG71-140LA 16.0 A 25.0 AB 8.9 A 22.0 AC 6.0 A 20.0 ANormal operationOutdoor unit current ≤ upperlimit current valueOutdoor unit current >upper limit current value&Outdoor unit current ≤ upper limitcurrent valueUpper limit compressor operatingfrequency = Maximum frequencyOutdoor unit current> upper limit current valueUpper limit compressor operating frequency–1 step/6 sec.Upper limit compressor operating frequency+1 step/2 min.Current BCurrent ACurrent C25 Outdoor air temperature (°C)28 43 50Overall current(A)30 seconds elapsed with residual operationLp < 0.2 MPaOR
