Panasonic CS-RE9NKE - Page 38

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13.1.4 IPM (Power transistor) Protection Control.
1. DC Peak Current Control
● When electric current to IPM exceeds set value of 7A(for RE9NKE),15.7A(for RE12NKE), or 19.3A(for
RE15NKE) the compressor will stop. It will restart after three minutes.
● If the set value is exceeded again within 30 seconds, the operation will restart after one minute.
● If this condition repeats continuously for seven times, all indoor and outdoor relays will be cut off.
● Error code [F99] will be displayed.
2. Overheating protection control
When the IPM temperature rises to 120 ℃ , compressor will stop immediately.
Compressor restarts after three minutes if the temperature decreases to 110℃
13.1.5 Compressor Overheating Prevention Control
Instructed frequency for compressor operation will be regulated compressor discharge temperature. The change of
frequency is as below.
13.1.6 Low Operation Frequency Protection Control
● When the compressor operate frequency lower than 24Hz continued for 240 minutes, the operation frequency will
be changed to 23Hz for 2 minutes.
13.1.7 Low Operation Frequency Protection Control
If all following conditions exists, the compressor will run with the frequency of 30 Hz.
Models RE9NKE, RE12NKE,RE15NKE
Intake Air Temp.
≥ 30 ℃ or ＜ 14 ℃ ≥ 28 ℃ or ＜ 14 ℃
Outdoor Temp.
≥ 38 ℃ or ＜ 13 ℃ ≥ 24 ℃ or ＜ 4 ℃
Indoor Piping Temp.
＜ 30 ℃ ≥ 0 ℃
Operation Mode Cool / Dry Heat
13.1.8 Low Pressure Prevention Control (Gas Leakage Detection)
a. Control start conditions
• For 5 minutes, the compressor continuously operates and outdoor total current is between 1.88A and 2.85A.
• During Cooling and Soft Dry operations:
Indoor suction temperature - indoor piping temperature is below 4℃.
Indoor temperature and outdoor temperature is 30±5℃.
Remote Control setting 16℃ and Hi Fan Speed.
• During Heating operations:
RE9NKE
RE12/15NKE