Panasonic CU-4E24RBU Service Manual

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

247.2 CU-4E24RBUCONTROL 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)(5k, 3900)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)(5k, 3900)OUTDOOR TEMP.SENSOR (THERMISTOR) (15k, 3950)HEAT EXCHANGER TEMP.SENSOR (THERMISTOR) (5k, 3900)DEFROST TEMP.SENSOR (THERMISTOR) (5k, 3900)MBBYORGRCONNECTORWHITECOMPRESSORMS3~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 67CN-DISP1(WHITE)CN-DISP1(WHITE)CN-DISP2(WHITE)CN-NMODE(YELLOW)CN-NMODE1(WHITE)CN-HOT(BLUE)(WHITE)CN-EV1 (YELLOW)CN-EV216(BLUE)CN-EV317(RED)CN-EV412MMMM(WHITE)CN-DISDISCHARGE TEMP.SENSOR (THERMISTOR) (50k, 3950)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)HEATER CN-HT(BLACK)RY-HOTRY-HT148BYORGWL1L2TERMINAL BOARDTERMINAL BOARDTO INDOOR UNIT A123BLK WTO INDOOR UNIT B123BLK WTO INDOOR UNIT C123TO INDOOR UNIT DSINGLE PHASEPOWER SUPPLYAC 208/230V60Hz5V 5V5VR463D403ZD403 ZD401R402R401PC401PC402R410R411R408R409R412 Q401bceR4134312ZD402D401R406 R407D402C414R405R4031243R404 C413ZD404R4145V5V 5V5V5V 5V5V5V 5V5V5V 5VZD407R424R420PC404PC403R419R426R423R421R425 Q402bceR4154312ZD406R416 R417D404C415R422R4181243ZD408R438R435PC405PC406R427R437R429R430R428 Q403bceR4314312ZD409R433 R434D405C416R436R4321243ZD410R439R440PC408PC407R449R443R444R442R447 Q404bceR4464312ZD411R445 R450D406C417R441R4481243ZD412R452R455PC410PC409R454R457R460R451R462 Q405bceR4594312ZD413R453 R456D407C418R461R45812435V13V5V13Vbce10k10k Q32Q30Q3110k4.7k4.7k4.7kbce15V_2bce5V5VR327C230C227C229R330R326R328C231R86C228 R332R331R32913V5VR13810k10k4.7k4.7kC65 R140R139R132R271Q24D78 RY-PWRecbbceQ34bec5VR333R338R334R335R337C232C241C233C234C2365VR341R342R336R339R340C239C240C235C237C2385VR100C45R101C465VR103C4813VR365bD33C62D60D59D58D57ceQ25R366 R368C218 D34 C219 D35 C220 D36D61D65D69D70D71D72D66D67D68D62D63D6413Vbce bce bceQ27Q29Q26R3675VC47R102C2095V5V5V5V5VPUMP DOWNSW11234OPERATION TESTSW21234WIRING CHECKSW3SW4 POWER SAVEON OFF123 2 134SW5 PRIORITY MODECOOL ONLYGREEN LED1 R304JP1ON OFF3 2 1R305R306R307R308R309GREEN LED2GREEN LED3GREEN LED4GREEN LED5GREEN LED610203040506070Temperature °C (°F)Resistance (K)Compressor Temp. Sensor(Thermistor) Charateristics010203040506070Temperature °C (°F)Resistance (K)Sensor (Thermistor)Characteristics Outdoor Air SensorOutdoor Heat ExchangerSensor-10(40) 0(32) 10(50) 20(68) 30(86) 40(104) 50(122)20(68)40(104)60(140)80(176)100(212)120(248)140(284)