York YAKN09BZNWEUH1 Installation And Maintenance Manual

Contents

York YAKN09BZNWEUH1 Installation And Maintenance Manual Manual pdf 12 page image

105.Drain pipingInstall the drain piping·····Make sure the drain works properly .Prepare polyvinyl chloride pipe with a 32mm outerdiameter.The diameter of drain pipe connection hole shouldbe same as that of the drain pipe.Keep the drain pipe short and sloping down wards ata gradient of at least 1/100 to prevent air pockets fromforming.Refrigerant pipesDrain pipe connection hole(external straight pipe thread)Water accumulating in the drain piping can causethe drain to clog.RefrigerantpipesBucketPortable pumpAir outletDrain outletInstallation and MaintenanceCAUTIONCAUTION···To keep the drain tube from sagging, space hangingwires every 1 to 1.5 m.Use the drain hose and the clamp. Insert the drainhose fully into the drain socket and firmly tighten thedrain hose and warm-keeping material with the clamp.The two areas below should be insulated becausecondensation may form there and cause water leakage.···Drain piping passing indoorsDrain sockets.Referring the figure below, insulate the drain socketand drain hose using the included large sealing pad.·····Drain piping connectionsDo not connect the drain directly to sewage pipes thatsmell of ammonia. The ammonia in the sewage mightenter the indoor unit through the drain pipes and corrodethe heat exchanger.·Do not twist or bend the drain hose , so that excessiveforce is not applied to it.This type of treatment may cause leaking.After piping work is finished, check drainage flowssmoothly.Gradually insert approximately 1000 cc of water intothe drain pan to check drainage in the manner describedbelow.Gradually pour approximately 1000 cc of water fromthe outlet hole into the drain pan to check drainage.Check the drainage.Drain hoseSealing material Sealing materialWhen the relative humidity of inlet or ambient airexceeds 80%, apply an (field-supplied) auxiliarydrain pan beneath the indoor unit as shown below.