Outdoor Unit SiBE12-713316 Removal Procedure1.8 Removal of the Four Way ValveProcedure Warning Be sure to wait 10 minutes or more after turning off all power suppliesbefore disassembling work.Step Procedure Points Be sure to apply nitrogenreplacement whenheating up the brazedpart.Cautions for restoration1. Restore the piping by non-oxidation brazing.In case of you cannot usethe nitrogen gas, restore asquickly as possible.2. It is required to prevent thecarbonization of the oil insidethe four way valve and thedeterioration of the gasketsaffected by heat. For thesake of this, wrap the fourway valve with wet cloth andprovide water so that thecloth will not be dried andavoid excessive heating.(Keep below 120°C) Be careful so as not to breakthe pipes by pressing itexcessively by pliers whenwithdrawing it.In case of the difficulty withgas brazing machine1. Disconnect the brazed partwhere is easy to disconnectand restore.2. Cut pipes on the main unit bya miniature copper tubecutter in order to make iteasy to disconnect.Note: Do not use a metalsaw for cutting pipes by allmeans because the sawdustcome into the circuit.1 Loosen the 1 screw toremove the four wayvalve coil.2 Heat up the 4 brazedpart of the four wayvalve. First, disconnectthe part "a". Provide a protectivesheet or a steelplate so that thebrazing flamecannot influenceperipheries.3 Disconnect the part "d".4 Disconnect the part "b"and "c".
