Daikin FTX50KMV1B Installation Manual

Contents

Daikin FTX50KMV1B Installation Manual Manual pdf 14 page image

11 EnglishIndoor Unit Installation5. Drain piping1) Connect the drain hose, as described right.2) Remove the air filters and pour some water into the drain pan to check the water flowssmoothly.3) If drain hose extension or embedded drain piping is required, use appropriate parts that match the hose front end.[Figure of hose front end]4) When extending the drain hose, use a commercially availableextension hose with an inner diameter of 16mm. Be sure tothermally insulate the indoor section of the extension hose.5) When connecting a rigid polyvinyl chloride pipe (nominaldiameter 13mm) directly to the drain hose attached to theindoor unit as with embedded piping work, use anycommercially available drain socket (nominal diameter13mm) as a joint.Refrigerant Piping Work1. Flaring the pipe end1) Cut the pipe end with a pipe cutter.2) Remove burrs with the cut surface facing downward sothat the chips do not enter the pipe.3) Put the flare nut on the pipe.4) Flare the pipe.5) Check that the flaring is properly made.WARNING• Do not use mineral oil on flared part.• Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.• Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.• Never install a dryer to this R410A unit in order to guarantee its lifetime.• The drying material may dissolve and damage the system.• Incomplete flaring may cause refrigerant gas leakage.The drain hose shouldbe inclined downward.No trap is permitted.Do not put the endof the hose in water.Indoor unitdrain hoseExtension drain hoseHeat insulation tube(field supply)Drain hose suppliedwith the indoor unitCommercially available drainsocket(nominal diameter 13mm)Commercially available rigidpolyvinyl chloride pipe(nominal diameter 13mm)Drain hose suppliedwith the indoor unitAA(Cut exactly atright angles.) Remove burrs.Set exactly at the position shown below.FlaringDieCheckFlare’s inner surfacemust be flaw-free.The pipe end mustbe evenly flared ina perfect circle.Make sure that theflare nut is fitted.0-0.5mmClutch-typeFlare tool for R410A1.0-1.5mmClutch-type (Rigid-type)1.5-2.0mmWing-nut type (Imperial-type)Conventional flare tool