Daikin FAA71AUVEB Installation Manual

Also see for FAA100AUVEB: Operation manual Technical data

Contents

English 137. DRAIN PIPING WORK(1) Install the drain piping. (Refer to Fig. 18)Perform the drain piping work so that water drains properly.• The drain piping should be short with a downward slope of 1/100 or more, and should prevent air pock-ets from forming. The drain hose from the indoor units should also have a downward slope.CAUTION• The drain pipe may be clogged if water accumulates in the drain pipe.• Watch out for the points in the Fig. 18 when performing drain work.• When extending the drain hose, use a commercially available drain extension hose, and be sure toinsulate the extended section of the drain hose. (Refer to Fig. 19)• Make sure the diameter of the extension piping is the same as the unit piping (hard vinyl chloride, nom-inal diameter 13mm) or bigger.• When directly connecting a hard vinyl chloride pipe joint (nominal diameter 13mm) to the drain hoseconnected to the indoor unit (i.e. for embedded piping, etc.), use a commercially available hard vinylchloride pipe joint (nominal diameter 13mm). (Refer to Fig. 20)CAUTION• Do not bend or twist the drain hose connected to the indoor unit to avoid applying an excessive force.(Applying an excessive force to the drain hose can cause water leakage.)• When installing the separately provided drain up kit, please refer to the installation manual provided withthe drain up kit.(2) Make sure the drain works properly.• After drain piping work is complete, perform adrain check by opening the front panel,removing the air filter, pouring water intothe drain pan, and making sure water flowssmoothly out of the drain hose.(Refer to Fig. 21)Fig. 18Make sure the drainpipe is at a downwardslope.Make sure the tip doesnot go underwater evenwhen water is added.Drain hose Drain hose(Downwardslope)Indoor unit drain hoseExtension drain piping(commercially available)Insulating tube(commercially available) Insulating tape (accessory) (3)( Refer to “5. INDOOR UNIT INSTALLATION” ) Fig. 19Drain hose connectedto the indoor unitCommercially availablehard vinyl chloride pipejoint (nominal diameter 13mm)Commercially availablehard vinyl chloride pipe(nominal diameter 13mm) Fig. 20Plastic containerfor pouringDrain panMake sure not to splash the water.Fig. 21