13.1.5. Compressor Overheating Prevention Control
•Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.
•If compressor discharge temperature exceeds 110θC, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be 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 4θC.
•During Heating operations :
Indoor piping temperature - indoor suction is under 5θC. 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 Control
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 4θC. Indoor temperature and outdoor temperature is 30±5θC.
Remote Control setting 16θC and Hi Fan Speed.
•During Heating operations:
Indoor piping temperature - indoor suction is under 5θC. Indoor temperature and outdoor temperature is 20 ± 2θC. Remote control setting 30θC 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” indicated
13.1.8. Low Frequency Protection Control 1
•When the compressor operate at frequency lower than 24 Hz continued for 20 minutes, the operation frequency will be changed to 23 Hz for 2 minutes.
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