Panasonic CS-MPS9SKH Service Manual

Panasonic CS-MPS9SKH Service Manual Manual pdf 38 page image

3811. Operation Control11.1 Basic FunctionInverter control, which equipped with a microcomputer in determining the most suitable operation mode as timepasses, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operationmode, the microcomputer maintains the set temperature by measuring the temperature of the environment andperforming temperature shifting. The compressor at outdoor unit is operating following the frequency instructed bythe microcomputer at indoor unit that judging the condition according to internal setting temperature and intake airtemperature.11.1.1 Internal Setting TemperatureOnce the operation starts, remote control setting temperature will be taken as base value for temperature shiftingprocesses. These shifting processes are depending on the air conditioner settings and the operation environment.The final shifted value will be used as internal setting temperature and it is updated continuously whenever theelectrical power is supplied to the unit.11.1.2 Cooling OperationThermostat control11.1.2.1 Compressor is OFF when intake Air Temperature - Internal Setting Temperature < -0.5°C. Compressor is ON after waiting for 3 minutes, if the Intake Temperature - Internal Setting Temperature >Compressor OFF point.11.1.3 Soft Dry OperationThermostat control11.1.3.1 Compressor is OFF when Intake Temperature - Internal Setting Temperature < -1.0°C. Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >Compressor OFF point.Automatic Operation11.1.3.2 This mode can be set using remote control and the operation is decided by indoor intake air temperature. During operation mode judgment at the beginning of the Auto Mode operation, indoor fan motor (with speed ofLo-) is running for 30 seconds to detect the indoor intake air temperature. The operation mode is decided based on below chart. After the operation mode is decided, the unit operation will follow the respective operation mode control.Remote Control Setting Temperature16°C ~ 30°CIndoor Air Temperature ShiftingOutdoor Air Temperature ShiftingSetting Temperature Limit Checking(Min: 16°C; Max: 33°C)Internal Setting TemperatureCoolingoperationSoft DryoperationIndoor intakeAir Temp23°C