16 Predictive Control Function (PCF) J Reaching targets faster J Reaching targets without overshooting, so there is no waste, resulting in improved efficiency The large number of Daikin systems already in operation and which are monitored by our Daikin Cloud Service put us in the unique position of being able to analyse this data and develop the predictive control function. Target t (VRV IV+) VRV with PCF General VRF with PI control Target capacity/refrigerant temperature 2t (general VRF) General VRF: Double time against VRV IV+ 37 patents J Pressure port increases pressure below the scroll in low load operation, preventing refrigerant leak from the high to low pressure side J Increased partial load efficiency During low load, weak pressure is applied resulting in refrigerant leakage. The back pressure control port sends high pressure refrigerant to the back of the scroll ensuring optimum pressure on the scroll. Inverter scroll compressor with back pressure control Back pressure control port Refrigerant leak Half time against general VRF
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