Control Specification SiMT041509E37 Function and Control3.5 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 takespriority over the lower limit control of four way valve operation compensation.DetailFrequency control in each zoneStop zone After 2.5 seconds in this zone, 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 keepzone.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(depending on the model).18 class 24 class 28 classCooling Heating Cooling Heating Cooling HeatingA (A) 18.0 18.0 18.0B (A) 9.5 7.5 12.0 8.5 14.5 9.5C (A) 8.5 6.5 11.0 7.5 13.5 8.5Compressor StopInput currentDropping ZoneStop ZoneKeep ZoneReset Zone(R14643)A(A)BC
