Panasonic CS-CE7HKEW Service Manual

Also see for CS-CE12HKEW: Operating instructions

Contents

Panasonic CS-CE7HKEW Service Manual Manual pdf 48 page image

4813.1.5. Compressor Overheating Prevention Control• Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes offrequency are as below.• If compressor discharge temperature exceeds 110qC, compressor will be stopped, occurs 4 times per 20 minutes, timer LED willbe blinking. (“F97” is indicated.)13.1.6. Low Pressure Prevention Control (Gas Leakage Detection)a. Control start conditions• For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.• During Cooling and Soft Dry operations:Indoor suction temperature - indoor piping temperature is below 4qC.• During Heating operations :Indoor piping temperature - indoor suction is under 5qC.b. Control contents• Compressor stops (and restart after 3 minutes).• If the conditions above happen 2 times within 20 minutes, the unit will:- Stop operation- Timer LED blinks and “F91” indicated.13.1.7. Compressor Tank Temperature Rise Protection Controla. Control start conditions• For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.• During Cooling and Soft Dry operations:Indoor suction temperature - indoor piping temperature is below 4qC.Indoor temperature and outdoor temperature is 30±5qC.Remote Control setting 16qC and Hi Fan Speed.• During Heating operations:Indoor piping temperature - indoor suction is under 5qC.Indoor temperature and outdoor temperature is 20 ± 2qC.Remote control setting 30qC and Hi Fan Speed.b. Control contents• Compressor stops (and restart after 3 minutes)• If the conditions above happen 2 times within 20 minutes, the unit will:- Stop operation- Timer LED blinks and “F91” indicated13.1.8. Low Frequency Protection Control 1• When the compressor operate at frequency lower than 24 Hz continued for 20 minutes, the operation frequency will be changedto 23 Hz for 2 minutes.