Title: 36 Siemens GDB181-MO.pdf.pdf
Volume flow of supply air controller [%]V&extract_ ai rVolume flow of extract air controller [%]V&masterVolume flow of supply air controller (Master) [%]slaveV&Volume flow of extract air controller (Slave) [%]6.3.2 Min/max control by the supervisory controllerWhen setting the minimum / maximum air volume flow in the supervisory controller, = 100 %. the VAV Compact Controller has to be configured withminV&maxV&= 0% andVAV ratio control 1 : 1Supply airExtract airVminVmaxVminVmaxSupervisory controller20 %80 %20 %80 %VAV Compact Controller0 %100 %0 %100 %Reference signal: Ysupply_air = Yextract_air = 35 %Result:Vsupply_air = Vextract_air = 35 %minV&maxV&V&minV&maxV&V&V&supply_ airV&extract_ aiVAV Compact Controller Modbus RTUA6V10631862_en--_d 2019-09-13Setting example A2Setting example A3Siemens Smart InfrastructureVAV ratio control, 20 % constant excess supply air volume flow (positive pressure in the room)