Tec Spec Please click on the icons below to download information about the Prefectirus datasheet: PRE2000 Wiring diagram connection to a hot water tank Tyical wet radiator layout PRE2000 & PRE9500 thermal drive valve Typical electric pannel heater layout PRE2000 PRE2000 Metering layout PRE2000 IFU & SIFU configuration digram PRE2000 central control unit & Wet radiators with PRE9500 Valves copy PRE2000 central control unit & electric panel heaters PRE2000 Connectivity PRE2000PU2 Standard Electric Heating Wiring Digram PRE2000PU2 Standard Electric Heating System Wiring Digram PRE2000PU2 Standard Wet Heating System Wiring Digram WD-128-V1.1-27.02.18-Prefectirus-Typical-Wet-Radiator-layout-PRE2000CU3-PRE2000PUR.pdf WD-125 V1.1 27.02.18 Prefectirus Typical electric pannel heater layout PRE2000CU3 PRE2000PU2 WD-134 V1 27.02.18 PRE2000PUR & PRE2000CU3 wiring diagram Wet WD-133 V1 12.01.18 PRE2000PU2 & PRE2000CU3 wiring diagram eletric