SM-16005-rev.2 4-3MAINTENANCETURN OFF all POWER supply switches.(2) There are two PCBs, control PCB (PCB1) and power PCB (PCB2). Both PCBs are secured with fourPCB holders. Clamp the center of the PCB holders using a long-nose plier to pull out the PCB.Phillips Screwdriver, Long-nose PliersToolNOTE:Do not touch any components on the PCB.Do not apply excessive force to the PCB or it will cause a malfunction.4.2.1 Removing PCB(1) Loosen two M4 screws securing the electrical box cover and remove the electrical box cover by liftingit up.Phillips ScrewdriverToolElectrical Box CoverScrewsCAUTIONUTILISER DES FILSD ALIMENTATION EN CUIVRE.'ATTENTIONUSE COPPER SUPPLY WIRES.87 094365132RSW1RSW2981054762655 6DSW5ON1 42 31 2ON3 4DSW6CN8 HACN7CN17 CN11CN14THM4 THU1 CN3THM5THM2THM1 THM3CN19CN1PCN7 PCN6 CN22DSW71ON1 2 4DSW43ONDSW3DSW9TP DSW82 31ONON1 2ON1 653 42CN28CN33A B 1 2 R/L1 S/L2 MP/NCN201PCN201PCN202CN203CN202PCB2Connector for Fan MotorPCB1Connector for ThermistorConnector for Float SwitchConnector for Expansion ValveConnector for EconoFresh KitConnector for Condensate PumpNOTE:During the removal or installation of the parts if the insulation material attached on the cabinet is removed,then reapply and repair the insulation. Otherwise, condensation may occur when cold air enters.4.2 Maintenance of Indoor UnitUse the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle.Do not charge the unit with materials other than R410A, such as hydrocarbon refrigerants(propane, etc.), oxygen, flammable gases (acetylene, etc.) or poisonous gases when installing,maintaining and moving the unit. Contamination of these are extremely dangerous and maycause an explosion, fire, and injury.
