Daikin J-Series Engineeiring Data

Also see for FTKN09JEVJU: Service manual Installation manual

Contents

Daikin J-Series Engineeiring Data Manual pdf 45 page image

Installation Manual EDUS04101644 Room Air Conditioners J-Series8Outdoor Unit Installation6. Refilling the refrigerantCheck the type of refrigerant to be used on the machine nameplate.Precautions when adding R410AFill from the liquid pipe in liquid form.It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation.1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphonattached” displayed on it.)• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.7. Refrigerant piping work7-1 Cautions on pipe handling1) Protect the open end of the pipe against dust and moisture.2) All pipe bends should be as gentle as possible. Use a pipe benderfor bending.7-2 Selection of copper and heat insulation materialsWhen using commercial copper pipes and fittings, observe the following:1) Insulation material: Polyethylene foamHeat transfer rate: 0.041 to 0.052W/mK (0.024 to 0.030Btu/fth°F (0.035 to 0.045kcal/mh°C))Be sure to use insulation that is designed for use with HVAC Systems.2) Be sure to insulate both the gas and liquid piping and to provide insulationdimensions as below.3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.Gas side Liquid side Gas pipethermal insulationLiquid pipethermal insulationO.D. 3/8 inch(9.5mm)O.D. 1/4 inch(6.4mm)I.D. 0.472-0.591 inch(12-15mm)I.D. 0.315-0.393 inch(8-10mm)Minimum bend radius Thickness 0.393 inch (10mm) Min.1-3/16 inch (30mm) or moreThickness 0.031 inch (0.8mm) (C1220T-O)Filling a cylinder with an attached siphonStand the cylinder upright whenfilling.There is a siphon pipe inside, so thecylinder need not be upside-down tofill with liquid.Filling other cylindersTurn the cylinder upside-downwhen filling.WallIf no flare cap isavailable, coverthe flare mouthwith tape to keepdirt or water out.Be sure toplace a cap.RainGas pipe Liquid pipeGas pipeinsulationLiquid pipeinsulationFinishing tape Drain hoseInter-unit wiring