Panasonic CU-E9DKE Service Manual

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Panasonic CU-E9DKE Service Manual Manual pdf 37 page image

8.2.1.7. Compressor Tank Temperature Rise Protection Controla. Control start conditionsControl will perform when (1) - (3) condition continues operation for 5 minute and (4) is fulfill.1. During cooling and dry operation: Frequency more than normal Fc.Air-temperature: Indoor and outdoor 30±5 degrees CRemote control Hi; 16 degrees CDuring Heating operation: Frequency more than FhAir temperature: Indoor and outdoor 20±2 degrees CRemote control Hi; 30 degrees C2. Outdoor total current I Air conditioning: 0.65<=I<1.65.Heating: 0.65<=I<1.65It is not during deice operation3. During cooling and dry operation: indoor suction-indoor piping temperature is below 4°C.During heating operation: Indoor piping temperature-indoor suction is under 5°C.Control contents:• compressor stops (restart after 3 minutes)• if happen 2 times within (20 minutes), perform the following operation1) Unit stop operation2) Timer LED blink and “F91” indicated8.2.1.8. Low Frequency Protection Control 1When the compressor operate at frequency lower than 22 Hz continued for 20 minutes, the operation frequency will be increasedto 22 Hz for two minutes.8.2.1.9. Low Frequency Protection Control 2When all the below conditions occur, minimum value (Freq. MIN) for the frequency instructed to compressor will change to 30 Hzfor cooling mode operation and 20 Hz for heating mode operation.Temperature, T, for: Cooling/Soft Dry HeatingIndoor intake air (°C) T 15 or T 30 —Outdoor air (°C) T 16 or T 38 T 4 or T 24Indoor heat exchanger (°C) T 30 T 08.2.1.10. Minimum Frequency Protection Control• During cooling operation (except Anti Freezing control, soft dry) carry out the following operation.1. During Remote Control setting is 28°C & below.Indoor Fan Speed min HzMore than Hi 29More than Me- 27Less than Me- 27Automatic 27However, when less than thermo OFF for 120 sec. continuously, the above control will be cancel.37CS-E9DKEW CU-E9DKE / CS-E12DKEW CU-E12DKEThis document is protected (secured) by www.nettovarmepumpar.se