Panasonic CS-E9HKEA Service Manual

Also see for CS-E12HKEA: Operating instructions

Panasonic CS-E9HKEA Service Manual Manual pdf 33 page image

33IPM Overheating Prevention Control• If temperature of IPM exceeds 103C, compressor will be stopped. It will restart in 2 minutes. Temperature for restarting: 90C.• If the excess occurs 4 times within 30 minutes after compressor starts, the compressor will be stopped and timer LED on theindoor unit will be blinking. (“F96” is to be confirmed.)12.2.5. Compressor Overheating Prevention Control1. If discharge pipe temperature exceeds 100C, compressor power will be limited.2. If discharge pipe temperature exceeds 112C, compressor will be stopped.3. If the above excess occurs 4 times per 10 minutes, timer LED will be blinking. (“F97” is to be confirmed.)12.2.6. Outdoor High Pressure Prevention Control (Cooling and Dry operations)1. If outdoor heat exchanger temperature exceeds 63C in cooling or dry operation, compressor will be stopped.2. Timer LED is not blinking. (“F95” is memorized, then.)12.2.7. Compressor Protection Control (Refrigeration Cycle Abnormality)In cooling and Dry operations1. When compressor is operated continuously for 5 minutes in the maximum cooling power: a running current of 0.7 - 1.4A and“[Indoor intake air temperature] - [Indoor heat exchanger temperature]” < 4C, compressor will be stopped.2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. (“F91” is to be confirmed.)In Heating operation1. When compressor is operated continuously for 5 minutes in the rated heating power: a running current of 0.7 - 1.4A and“[Indoor heat exchanger temperature] - [Indoor intake air temperature]” < 5C, compressor will be stopped.2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. (“F91” is to be confirmed.)12.2.8. Four-way Valve Operation Detection Control (Switching Abnormality betweenCooling and Heating)In Cooling operation1. When indoor heat exchanger temperature exceeds 45C in 4 minutes after compressor starts, compressor will be stopped.2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. (“F11” is to be confirmed.)In Heating operation1. When indoor heat exchanger temperature is below 0C in 4 minutes after compressor starts, compressor will be stopped.2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. (“F11” is to be confirmed.)12.2.9. Anti-Freezing Control (Cooling and Dry operations)Limit of Cooling power1. When temperature of indoor heat exchanger is below 5C, operating frequency will be decreased.2. When temperature of indoor heat exchanger exceeds 7C, operating frequency will be increased. (But, up to programmedfrequency.)3. When temperature of indoor heat exchanger is below 0C continuously for 6 minutes, compressor will be stopped.4. Timer LED is not blinking. (“F99” is memorized, then.)Limit of Indoor fan speed• When temperature of indoor heat exchanger is below 6C (2C at Dry) continuously for 6 minutes, indoor fan speed will beincreased by 50 rpm.12.2.10. Outdoor Air Temperature ControlIn Cooling and Dry operations1. When outdoor air temperature is below 25C, the maximum power will be limited up to about 80 - 100% of the rated power.2. When outdoor air temperature is below 18C, the maximum power will be limited up to about 50 - 100% of the rated power.3. When outdoor air temperature is below 11C, the maximum power will be limited up to about 26 - 81% of the rated power.12.2.11. Indoor Intake Air Temperature Control (Heating operation)1. When indoor air temperature is 35C or more, the maximum power will be limited up to the rated power.2. When fan speed is set at “Lo” and intake air temperature is below 21C, the maximum power will be limited up to the ratedpower.