Daikin FAY71FJV1 Installation Manual

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Contents

Daikin FAY71FJV1 Installation Manual Manual pdf 10 page image

7 English[ How to detach side and bottom panels ]• Remove the screws in the side panel and pull the side panel outward (A). Then, while pushingupwards (B), slide the panel towards the front of the unit (C). (Same for both left and right sides)( Refer to Fig. 6 and 7 )• After detaching the side panels, turn the bottom panel downward (D) about 45°, and pull it outward(E). ( Refer to Fig. 8 )5. REFRIGERANT PIPING WORK• See the installation manual for the outdoor unit for details on how to connect the refrigerant piping.• Be sure to insulate both the gas piping as well as the liquid piping.• Not doing so may cause leaks. (Use insulation material which can fully resist the 120°C temperature thatthe gas piping can sometimes reach when using a heat pump.)• If the temperature and humidity of the branch piping could possibly exceed 30°C or RH80%, reinforce therefrigerant insulation (20mm or thicker). Condensation may form on the surface of the insulation.• Installation should only be carried out after checking in advance the type of refrigerant to be used. (Usingthe wrong refrigerant will prevent the unit from functioning properly.)CAUTION• Use a pipe cutter and flare suitable for the type of refrigerant.• Apply ester oil or ether oil around the flare section before connecting.• To prevent dust, moisuture or other foreign matter from infiltrating the tube, either pinch the endor cover it with tape.• Do not allow anything other than the designated refrigerant to get mixed into the refrigerantcircuit, such as air, etc. If any refrigerant gas leaks while working on the unit, ventilate the roomthoroughly right away.• Use copper alloy seamless pipes ( ISO 1337 ).• The outdoor unit is charged with refrigerant.• Be sure to use both a spanner and torque wrench together,when connecting or disconnecting pipes to/from the unit.( Refer to Fig. 9 )• Refer to the Table 2 for flare dimensions and tighteningtorque.NOTE• Use the flare nut included with the unit main body.CAUTIONOver-tightening the flare nut may break it and/or cause the refrigerant to leak.(A)(A)(C)(C) (B)Left side panelFig. 6Fig. 7Side panel screwLeft sidepanel Top sideRight sidepanelRight side panel(D)(E)Bottom panelFig. 8Approx. 45˚WallTorque wrenchFlare nutPiping unionFig. 9Spanner