Panasonic CS-MRE7MKE Service Manual

Also see for CS-MRE12MKE: Operating instructions

Panasonic CS-MRE7MKE Service Manual Manual pdf 41 page image

4114 Operation Control14.1. Compressor Operation Frequency• The compressor operation frequency is determined by room temperature, capacity, and model type.- When operation is started after the air conditioner has been stopped for more than one hour, the air conditioner operates at ahigh frequency which lowers the room temperature quickly for cooling (or raises it quickly for heating).- If two or more indoor units are operating simultaneously, the thermostat is set to OFF in one room; the automatic expansionvalve is closed to adjust the flow of refrigerant so as to control the room temperature.- When the thermostat is set to OFF during 1-room operation, the compressor and fan of the outdoor unit are stopped. (Theoutdoor unit fan is stopped 30 seconds after the compressor stops).- It takes about 180 seconds to restart operation when the compressor has been stopped (Time delay safety control)14.2. Deice Operation• During Heating operation, the deice operation judgment method:According to outdoor heat exchanger temperature, operation time and outdoor air temperature.• Deice operation- The outdoor heat exchanger temperature falls below 3C continuously for 3 minutes- During deice operation; the 4-way valve is switched to cooling cycle to melt the frost.- Deice operation ends about 12 minutes of operation or the temperature of heat exchanger rises above 25C.