22-15Outdoor unit control PCB8 – 10 HPIndoor Units (Type E2, E1) (for Link Wiring)2-16. CautionThis unit may be used in a single-type refrigerant system where 1 outdoor unit is connected to 1 indoor unit.This test run explanation describes primarily the procedure when using the wired remote controller.If link wiring is used, set the outdoor unit system address to allow the combination of indoor and outdoorunits to be identified. At the same time, indicate the indoor-outdoor unit combination number in alocation where it can be checked easily (near the indoor unit nameplates).(This number will be required for subsequent maintenance. Refer to 2-21-2, 3, 4.)Request that the customer be presentwhen the test run is performed.At this time, explain the operationmanual and have the customerperform the actual steps.Be sure to pass the manuals andwarranty certificate to the customer.Check that the 220 – 240 V AC wiringis not connected to the inter-unitcontrol wiring connector terminal.If 220 – 240 V AC is accidentallyapplied, the indoor or outdoor unitcontrol PCB fuse will blow in order toprotect the PCB. Correct the wiringconnections, then disconnect the 2Pconnectors (indoor: blue, OC)(outdoor: blue, serial 1) that areconnected to the PCB, and replacethem with 2P connectors(indoor: brown, EMG)(outdoor: brown, serial 2).If operation is still not possible afterchanging the brown connectors,try cutting the varistor (black).(Be sure to turn the power OFFbefore performing this work.) Fig. 2-13LED1FUSE (0.5A, F500)OC (CN500, BLU)MOV2(CN301, BLK)MOV1(CN300, WHT)EMG (CN502, BRN)SILENT (CN037, WHT)PUMP DOWN (CN048)TEMINAL (CN205, BLK)R.C.ADD. Rotary switchC2 (CN020, WHT)C1 (CN021, WHT)TEST (CN033, RED)TD (CN024, BLK)TO (CN023, BLK)TS (CN022, RED)63PH (CN027, WHT)EXCT(CN030, RED)RC P(CN039, RED)IC002CTL2(CN202, GRN)CTL1(CN203, GRN)FUSE(6.3A, F101)N . P . C H E C K(CN046, RED) LED2MODE (CN038)D115(POWER LED)IC001 R.C.ADD. DIP switchA.ADD (CN047)C-CHK (CN035)EEPROMLED (D041EEPROM LED)
