4-124.7 Electrical Circuit and Servicing PrecautionsDC400-710VInverter boxControl boxC/BCompressorAC24V3 phase AC380-415V/50Hz440-460V/60HzInverter boardEC8ACL Noise filterboard EC9Fan motorsSV SensorsModulation ValvesSolenoid ValvesInput toCPU boardOutput fromCPU boardAC DC Inverter controlSheet keyEC6I/O boardEC2Operation boardEC3CPU boardEC1TrPT/CTEC7LCDEC4CFM EFMDMVEEV EMVCMPower circuit 380-415V/50Hz 440-460V/60HzOperation circuit AC24VServicing precautions1. Power circuitBefore inspecting the primary side of circuit breaker, be sure to turn off the power for facility side.Even after turning off the circuit breaker, supply voltage is still applied.2. Before inspecting the secondary side of circuit breaker, be sure to turn off the circuit breaker anddisconnect power plug.3. Inverter circuitTo inspect inside the inverter BOX, ensure tofollow the instructions below.Ensure to leave the unit at least 10 minutes afterturning off the circuit breaker before opening thecover of the inverter box.This is because it takes time for the chargeaccumulated in the capacitor on the inverter boardto be released after turning off the circuit breaker.Open the inverter box cover and, ensure that thevoltage between the terminal TP1 and TP2 onthe inverter board is lowered to DC50V or belowbefore starting inspection.(When stopped) Max. 460 1.1 2=713V(When operated) Max. 460 1.3=598Vhttps://daikin-p.ru
