59
14.1.7 Low Pressure Protection Control (Gas Leakage Detection) (For E12JK-1 only)
• Control start conditions
o For 5 minutes, the compressor continuously operates and outdoor total current is between 0.66A and 1.25A
(Cooling), 0.66A and 2.65A (Heating)
o During Cooling and Soft Dry operation:
Indoor suction temperature – indoor piping temperature is below 39.2°F
o During Heating operations :
Indoor piping temperature - indoor suction is under 41°F.
14.1.8 Low Pressure Protection Control (Gas Leakage Detection) (For E18JKK-1)
• 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°F.
14.1.9 Low Frequency Protection Control 1
• When the compressor operates at frequency lower than 26Hz continued for 20 minutes, the operation frequency
will be changed to 25Hz for 2 minutes. (For E12JKK-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. (For E18JKK-1)
14.1.10 Low Frequency Protection Control 2
• When all below conditions comply, minimum limit of compressor will be set.
E12JKK-1 E18JKK-1
Temperature, T, for: Cooling / Soft Dry Heating Cooling / Soft Dry Heating
Indoor intake air (°F) T < 59 or T ≥ 86 - T < 57.2 or T ≥ 86 T < 57.2 or T ≥ 82.4
Outdoor air (°F) T < 60.8 or T ≥ 100.4 T < 39.2 or T ≥ 75.2 T < 55.4 or T ≥ 100.4 T < 39.2 or T ≥ 75.2
Indoor heat exchanger (°F) T < 86 T ≥ 32 T < 86 T ≥ 32
14.2 Protection Control For Cooling & Soft Dry Operation
14.2.1 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.
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