Outdoor Unit : 50 Class SiBE06-708182 Removal Procedure2.6 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 Points1 Remove the electronicexpansion valve coil. The illustration is for heatpump models asrepresentative.2 Loosen the screw of thefour way valve coil. Provide a protective sheet ora steel plate so that thebrazing flame cannotinfluence peripheries. Be careful so as not to breakthe pipes by pressing itexcessively by pliers whenwithdrawing it.CautionBe careful about the four wayvalve, pipes and so on, whichwere heated up by a gasbrazing machine, so as not toget burnt your hands.Cautions for restoration1. Restore the piping by non-oxidation brazing. Braze itquickly when no nitrogen gascan be used.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)3 Heat up the brazed partof the four way valveand disconnect. Be sure to applynitrogenreplacement whenheating up thebrazed part.
