HYSYS® Hysys: the intelligent solution® sizingaidfoR s maRtCiatContRoLConneCtions Protocol Max. connection length (m) System Maximum number of connected Number of lines Cable reference units A: 1000 m Smart CIATControl 60: 60 V3000 units 1 KNX line Total line length YCYM 2x2x0.8 B: 300 m Smart CIATControl 120: 120 V3000 units 2 KNX lines or JY(St) Y 2x2x0.8 Tablet - V3000 VDE 0815 cable C: 700 m V3000 - V3000 Smart CIATControl180: 180 V3000 units 3 KNX lines Heat pump or chiller AHU D: 1000 m Total line length Smart CIATControl 60: 3 2 RS 485 shielded twist- 1 ModBus line ed pair cable E: 500 m Smart CIATControl 120: 3 4 E.g.: 2 x 2 x 0.5 Between 2 nodes Smart CIATControl 180: 3 5 CentRaLChangeoveRfoR( v30and v300ContRoLonLy) For2-tube Heating/Cooling comfort units equipped with non-communicating controllers (V30 and V300), Hysys offers a central® C/O solution with the decoupling module. It comprises a unit with a C/O sensor which is positioned on the primary supply circuit and a relay on each unit. C/O sensor Dispositif de dégazage Chaud 3d d Codlélepcatretur3d Circuit primaire >3d Froid Corleletocuterur3d D 3d Robinet de vidange C/O unit Pilot line 230 V pilot line, 2 x 1.5 mm cable section; contact us for possibilities and options for these controls.2 For V300 application: see our centralised changeover solutions via a zone timer CATALOGUE 2021 133 133