Samsung Electronics 236Piping DiagramMaximum current limit (total)ƒ PurposePrevent operation if the electric current capacity is exceeded.ƒ Concept- The compressor operation frequency is lowered to prevent the electric current used to operate outdoor units from exceedingthe maximum electric current.- Outdoor unit current = Compressor current + Outdoor fan current (= CT1 + CT2)ఐ͑ CT1 = Compressor 1 current + Fan current- Maximum outdoor unit current = Maximum current of the system x Set value- Set value : 50-100% (default 100%). The value can be set from outdoor unit options or the upper-level controller.A value below 100% will degrade performance.ƒ Control specifications in detail- The frequency is controlled according to the outdoor unit current, as shown below.1st step Hz hold : The current frequency is fixed if the outdoor unit current at present is higher than 95% of the maximum current.(It is possible to lower the frequency if necessary)2nd step Hz down : The frequency is forcibly lowered by 5Hz at specified intervalsif the outdoor unit current at present is higher than the maximum current.7-3 Functions (cont.)7-3-2-5 Protective control (cont.)7-3-2 Control (cont.)
