Panasonic CU-4E24RBU Service Manual

Also see for CU-3E19RBU: Operating instructions Service manual Service manual Service manual Installation manual

226.2 CU-4E24RBUResistance of Compressor WindingsCONNECTIONU - VU - WV - W0.720.730.715KD240XAL21 (Ω)CONTROL BOARDY/GBLKBLK123WWBLKR 1CN-COM(WHITE)FUSE 401(30A 250V)ACL1(BLACK)ACN1(WHITE)FG1(GREEN) FG2(GREEN) DCP(RED) DCN(BLACK)CN-BLK (BLACK)REACTOR GRYRY-PWRSMOOTHINGCAPACITORPFCCAPACITORRECTIFICATIONCIRCUITSWITCHINGPOWER SUPPLYCIRCUITELECTRONIC CONTROLLER(MAIN)ELECTRONIC CONTROLLER(NOISE FILTER)ELECTRONICCONTROLLER(DISPLAY)PFCCIRCUITAC-WHT(WHITE) RAT1(GRAY) DCP(RED) DCN(BLACK) AC1(BROWN)Q10(RED) U(YELLOW)(BLUE) VPNUVW WBRWRRRR11 13 311110111144247CN-FM1(WHITE)CN-PSW1(BLUE)CN-TH3(WHITE)CN-TH4(WHITE)(WHITE)CN-TH1(YELLOW)CN-TH2ttttttttttttFAN MOTORHIGH PRESSURE SW.LIQUID PIPE TEMP. SENSOR(UNIT A) (THERMISTOR)LIQUID PIPE TEMP. SENSOR(UNIT B) (THERMISTOR)LIQUID PIPE TEMP. SENSOR(UNIT C) (THERMISTOR)LIQUID PIPE TEMP. SENSOR(UNIT D) (THERMISTOR)GAS PIPE TEMP. SENSOR(UNIT A) (THERMISTOR)GAS PIPE TEMP. SENSOR(UNIT B) (THERMISTOR)GAS PIPE TEMP. SENSOR(UNIT C) (THERMISTOR)GAS PIPE TEMP. SENSOR(UNIT D) (THERMISTOR)OUTDOOR TEMP.SENSOR (THERMISTOR)HEAT EXCHANGER TEMP.SENSOR (THERMISTOR)DEFROST TEMP.SENSOR (THERMISTOR)MBBYORGRCONNECTORWHITECOMPRESSORYELLOW (YEL)OR T (W)(TRADEMARK)THE PARENTHESIZED LETTERS ISINDICATED ON TERMINAL COVERCOMP. TERMINALBLUE (BLU)OR S (V)RED (RED)OR R (U)MS3~BYR BLKAC-BLK(BLACK)AC2(BLUE)FUSE 2(T3.15A L250V)FUSE 1(T3.15A L250V)CN-DATA(WHITE)CN-DATA(WHITE)RAT2 (GRAY)AC1(BROWN)AC2 (BLUE)CN-WHT(WHITE) WBLKGRYBRB1 WWWWWWWWW19 9NOISE FILTERCIRCUITCOMMUNICATIONCIRCUITRECTIFICATIONCIRCUITGGCONTROL BOARD35791 WWWWWWWWWWWWWWWWWWWWW11611711331 18 67JP1COOL ONLYCN-DISP1(WHITE)CN-DISP1(WHITE)CN-DISP2(WHITE)CN-NMODE(YELLOW)CN-NMODE1(WHITE)POWER SAVEPRIORITY MODEPUMP DOWNOPERATION TESTWIRING CHECKCN-HOT(BLUE)(WHITE)CN-EV1(YELLOW)CN-EV2 16(BLUE)CN-EV3 17(RED)CN-EV4 12MMMM(WHITE)CN-DISDISCHARGE TEMP.SENSOR (THERMISTOR)UNIT DELECTRO-MAGNETIC COIL(EXPANSIONVALVE)UNIT CELECTRO-MAGNETIC COIL(EXPANSIONVALVE)UNIT BELECTRO-MAGNETIC COIL(EXPANSIONVALVE)UNIT AELECTRO-MAGNETIC COIL(EXPANSIONVALVE)ELECTRO MAGNETICCOIL (4-WAY VALVE)REMARKSBLU/B : BLUEBLK : BLACKW : WHITER/RED : REDY/YEL : YELLOWGRY : GRAYG : GREENORG : ORANGEY/G : YELLOW/GREENBR : BROWNHEATER CN-HT(BLACK)RY-HOTRY-HT148BYORGWL1L2TERMINAL BOARDTERMINAL BOARDTO INDOOR UNIT A123BLK WTO INDOOR UNIT B123BLK WTO INDOOR UNIT C123TO INDOOR UNIT DSINGLE PHASEPOWER SUPPLYAC 208/230V60Hz