SiUS091601E Control SpecificationFunctions and Control 463.5 Input Current ControlOutline The microcomputer calculates the input current while the compressor is running, and sets thefrequency upper limit based on the input current.In case of heat pump models, this control is the upper limit control of frequency and takes priorityover the lower limit control of four way valve operation compensation.DetailFrequency control in each zoneStop zone After the input current remains in the stop zone for 2.5 seconds, the compressor is stopped.Dropping zone The upper limit of the compressor frequency is defined as operation frequency – 2 Hz. After this, the output frequency is lowered by 2 Hz every second until it reaches the keep zone.Keep zone The present maximum frequency goes on.Reset zone Limit of the frequency is canceled.Limitation of current dropping and stop value according to the outdoor temperature The current drops when outdoor temperature becomes higher than a certain level (dependingon the model).09 class 12 class 15 classCooling Heating Cooling Heating Cooling HeatingA (A) 12 13 18B (A) 7.5 8.5 11.5 12 12 12C (A) 6.5 7.5 10.75 11.25 11 11Compressor StopInput currentDropping zoneStop zoneKeep zoneReset zone(R23249)A(A)BC
