Panasonic U-36LE1U6 Technical Data Manual

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Panasonic U-36LE1U6 Technical Data Manual Manual pdf 48 page image

Design of Mini VRF SYSTEM2 - 38187654325. HOW TO PROCESS TUBING5. HOW TO PROCESS TUBING5-1. Connecting the Refrigerant TubingUse of the Flaring MethodMany of conventional split system air conditionersemploy the flaring method to connect refrigerant tubeswhich run between indoor and outdoor units.In thismethod, the copper tubes are flared at each end andconnected with flare nuts.Flaring Procedure with a Flare Tool(1)tube cutter. It is recommended to cut approx. 1 –2 ft. longer than the tubing length you estimate.(2)Cut the copper tube to the required length with aRemove burrs at the end of the copper tube with atube reamer or file. This process is important andshould be done carefully to make a good flare.(Fig. 2-15)When reaming, hold the tube end downward and besure that no copper scraps fall into the tube.(Fig.2-16)(3)mount it on the copper tube.(4)Remove the flare nut from the unit and be sure toMake a flare at the end of copper tube with a flaretool. (Fig.2-17)A good flare should have the following characteristics:inside surface is glossy and smoothedge is smoothtapered sides are of uniform lengthNOTENOTEDeburringBefore AfterFig. 2-15ReamerCoppertubingFig. 2-16Flare toolFlare nutCoppertubingFig. 2-17