8 Technical dataInstallation manual24EWAQ+EWYQ006+008BAVPPackaged air-cooled water chillers and packaged air to water heatpumps4P478610-1 – 2017.02Electrical connection diagramX2M: 13-15230 VX8M: 3-4230 VX8M: 1-2X2M: 7-8X2M: 9-10230 VX2M: 5-6X2M: 3-4X2M: 1-2X2M: 11-12X2M: 1a-2a22X2M: 1-2-1a A3P: C-com-H230 VX2M: 1-2-1aX8M: 4-5 A7P: X1M: H-C-comX2M: L-N A3P: X1M: 1-3 R2TX15M: 1-2X15M: 3-4X15M: 5-6-7X2M: 5-6X2M: 12-11X2M: 13-14-15A4P: X5A: 1-2-3X1M: L-N-PEA4P: X5A: 1-2-3X8M: 6-7X2M: 9-10X2M: 20-21X2M: 22-23230VX1M: L-N-PE2x0.752x0.75X8M: 10230VX5YX8M: 6-7-104D1091322x0.75230V230VX3M: 1-2X5M: 3-4X5M: 1-2X5M: 5-6Notes:- In case of signal cable: keep minimum distance to power cables > 5 cm- Available heaters: see combination tablesignalsignalsignalsignal2 core2 core2 core2 coreExternal outdoor thermistorOptional partControlBoxValve KitBUHControlBoxOnly for *WYQ*Standard: 4 low voltage wiresOptional: 5 high voltage wiresInside: 6 or 7 wires to BUHValve kit: 3 wiresStandard: 4 low voltage wiresOptional: 4 high voltage wires2 low voltage wiresOnly for EKRSCA1signal2 coreOptional partcommunication2 coreStandard partOptional partcommunication2 core Only for *KRUCB*A5P: P1-P2 user interfaceA5P: P1-P2 user interfacePower supply3 corecontrol box power supply: 230 V + earthsignalsignalsignal2 or 3 core2 core2 coreF1B: L1-L2-L3-N + earthor L-N + earthbackup heater power supply (3/6/9 kW):400 V or 230 V + earthValve kitBUH optionsignal2 core2 core2 coresignalsignal2 coresignal2 core2 coreOnly for KRCS01-1External indoor thermistorElectricity pulsemeter input 2Electricity pulsemeter input 1Space cooling/heatingOn/OFF outputExt. heat source (eg boiler)Alarm Outputcommunication3 core3 corePower limitationdemand input 4Power limitationdemand input 3Power limitationdemand input 2Power limitationdemand input 1Field supply Field supplyOptional partOptional partOnly for *KRTETSExternal sensor(floor or ambient)2 core(3m included)signalsignalOnly for *KRTR(wireless room thermostat)Only for *KRTW(wired room thermostat)5 core for C/H operation4 core for C only operation3 core for C/H operation2 core for C only operationExternal room thermostat(main zone)Optional partControl boxShut-OFF valvePreferential kWh rate power supply contact2 core2 core2 core3 coreX3M: 5-6X1M: L-N-earthunit power supply: 230 V + earthnormal kWh rate power supply for unit: 230 VOnly for preferential kWh rate power supply installationField supplyMinichiller unitStandard partPower supplyOption boxTypical configuration