Basic Control ESIE09-0850 Function2.2 Compressor PI ControlCompressor PI ControlCarries out the compressor capacity PI control to maintain Tc at constant during heatingoperation to ensure stable unit performance.Outdoor compressor (R-410A)Indoor compressor (R-134a)11kW -> max. 21 steps14kW -> max. 26 steps16kW -> max. 30 stepsSTn INV(Fullload) INV(Unload) STn INV(Fullload) INV(Unload) STn INV(Fullload) INV(Unload)1 36.0Hz 11 80.0Hz 21 140.0Hz2 39.0Hz 12 86.0Hz 22 146.0Hz3 43.0Hz 13 92.0Hz 23 152.0Hz4 47.0Hz 14 98.0Hz 24 158.0Hz5 52.0Hz 15 104.0Hz 25 164.0Hz6 52.0Hz 57.0Hz 16 110.0Hz 26 170.0Hz7 57.0Hz 64.0Hz 17 116.0Hz 27 175.0Hz8 62.0Hz 71.0Hz 18 122.0Hz 28 180.0Hz9 68.0Hz 78.0Hz 19 128.0Hz 29 185.0Hz10 74.0Hz 20 134.0Hz 30 190.0HzSTEP INV STEP INV STEP INV1 40.0Hz 11 98.0Hz 21 158.0Hz2 46.0Hz 12 104.0Hz 22 164.0Hz3 52.0Hz 13 110.0Hz 23 170.0Hz4 57.0Hz 14 116.0Hz 24 174.0Hz5 62.0Hz 15 122.0Hz 25 182.0Hz6 68.0Hz 16 128.0Hz 26 188.0Hz7 74.0Hz 17 134.0Hz 27 194.0Hz8 80.0Hz 18 138.0Hz 28 200.0Hz9 86.0Hz 19 144.0Hz 29 206.0Hz10 92.0Hz 20 152.0Hz 30 210.0Hz∗ Compressors may operate in a pattern other than those listed in above tables subject to the operating conditions.Selection of full load operation to/from unload operation is made with the unload circuit solenoid valve(Y3S=SVUL). The full load operation is performed with the SVUL set to OFF, while the unload operation isperformed with the SVUL set to ON.
