Panasonic CS-RE18SKUA

63
15.1.5 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 233.6°F, compressor will be stopped, occurs 4 times per
20 minutes, timer LED will be blinking. “F97” is indicated.
Compressor Frequency
Reduced
Compressor = OFF
233.6°F
206.6°F
204.8°F
194.0°F
230.0°F
212.0°F
Compressor Frequency
Maintain
Free
Comp Discharge temperature
15.1.6 Low Pressure Protection Control (Gas Leakage Detection)
 For 5 minutes, the compressor continuously operates and outdoor total current is between 0.78A and 1.16A.
 During Cooling and Soft Dry operation:
Indoor suction temperature – indoor piping temperature is below 39.2°F.
 During Heating operations :
Indoor piping temperature - indoor suction is under 41.0°F.
15.1.7 Low Frequency Protection Control 1
 When the compressor operates at frequency lower than 25Hz continued for 240 minutes, the operation frequency
will be changed to 24Hz for 2 minutes.
15.1.8 Low Frequency Protection Control 2
 When all below conditions comply, minimum limit of compressor will be set.
RE18SKUA, RE24SKUA
Temperature, T, for: Cooling / Soft Dry Heating
Indoor intake air (°F) T < 57.2 or T ≥ 86.0 T < 57.2 or T ≥ 82.4
Outdoor air (°F) T < 55.4 or T ≥ 100.4 T < 39.2 or T ≥ 75.2
Indoor heat exchanger (°F) T < 86.0 T ≥ 32.0
15.2 Protection Control For Cooling & Soft Dry Operation
15.2.1 Outdoor Air Temperature Control
 The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the
diagram below.
 This control will begin 1 minute after the compressor starts.
 Compressor frequency will adjust based on outdoor air temperature.
77.0°F
71.6°F
Limited frequency
Free