ICP HMC030KD1 Service Manual

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ICP HMC030KD1 Service Manual Manual pdf 23 page image

- 23 -1) Flaring workMain cause for gas leakage is due to defect in flar-ing work. Carry out correct flaring work in the follow-ing procedure.1. Cut the pipes and the cable. Use the piping kit accessory or the pipespurchased locally. Measure the distance between the indoor and theoutdoor unit. Cut the pipes a little longer than measureddistance. Cut the cable 1.5m(59.1") longer than the pipelength.2. Burrs removal Completely remove all burrs from the cut crosssection of pipe/tube. Put the end of the copper tube/pipe in a down-ward direction as you remove burrs in order toavoid dropping burrs into the tubing.3. Putting nut on Remove flare nuts attached to indoor and outdoorunit, then put them on pipe/tube having complet-ed burr removal.(not possible to put them on after flaring work)Copperpipe 90° Slanted Uneven RoughBarCopper pipeClamp handle Red arrow markConeYokeHandleBar"A"PipeReamerPoint down4. Flaring work Carry out flaring work using flaring tool as shownbelow.Firmly hold copper pipe in a die in the dimensionshown in the table above.5. Check Compare the flared work with figure below. If flare is noted to be defective, cut off the flaredsection and do flaring work again.mm inch mmø6.35 1/4 0 ~ 0.5ø9.52 3/8 0 ~ 0.5ø12.7 1/2 0 ~ 0.5ø15.88 5/8 0 ~ 1.0Outside diameter AFlare nutCopper tube InclinedInside is shiny without scratchesSmooth all roundEven lengthall roundSurfacedamaged Cracked Uneventhickness= Improper flaring =2. Flaring Work and Connection of Piping