Troubleshooting SiBE811001EB327 CONVENI-PACK9.2 Precautions for Electronic Expansion Valve SelectionThis model has a larger degree of subcooling (subcooling ratio = condensing temperature - liquid refrigeranttemperature) for the liquid refrigerant of a refrigerator than that of refrigerators without a subcooling mechanism as itcools the liquid refrigerant with a plate type heat exchanger. The electronic expansion valves feature adjustablecapacity depending on the subcooling ratio for the liquid refrigerant.When selecting a thermal expansion valve for the load, select one based on the selection method by expansionmanufacturers after checking the subcooling ratio for the liquid refrigerant in the following table.(A correction value may be added to the electronic expansion valve capability depending on the subcooling ratio.) Calculated example: The subcooling ratio with evaporative temperature at -10°C and condensing temperature at45°C becoming 19K (liquid refrigerant temperature at 26°C).The liquid temperature in the booster unit is further decreased.The liquid temperature of the refrigeration showcase inlet is approximately +10 degrees of the target evaporatingtemperature of the outdoor unit.Subcooling ratio (K) (subcooling ratio = condensing temperature - liquid refrigerant temperature)Evaporative temperature-45°C -40°C -35°C -30°C -25°C -20°C -15°C -10°C -5°C 0°C 5°C 10°CCondensing temperature20°C 31K 28K 26K 23K 20K 18K 15K 13K 11K 9K 6K 4K25°C 31K 29K 26K 24K 21K 19K 16K 14K 12K 10K 8K 6K30°C 32K 29K 27K 24K 22K 19K 17K 15K 13K 11K 9K 7K35°C 32K 30K 27K 25K 23K 20K 18K 16K 14K 12K 10K 9K40°C 32K 30K 28K 26K 23K 21K 19K 17K 16K 14K 13K 10K45°C 33K 31K 29K 26K 24K 22K 21K 19K 17K 15K 14K 12K50°C 34K 31K 29K 27K 25K 24K 22K 20K 18K 17K 15K 14K55°C 34K 32K 30K 28K 27K 25K 23K 22K 20K 18K 17K 16K
