7 EnglishOutdoor 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 bender forbending.(Bending radius should be 30 to 40mm or larger.)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 (0.035 to 0.045kcal/mh°C)Refrigerant gas pipe’s surface temperature reaches 110°C max.Choose heat insulation materials that will withstand this temperature.2) Be sure to insulate both the gas and liquid piping and to provide insulation dimen-sions as below.• Use separate thermal insulation pipes for gas and liquid refrigerant pipes.Gas side Liquid side Gas pipe thermalinsulationLiquid pipethermalinsulation50/60 class 71 class 50/60/71class50/60class 71 class 50/60/71classO.D.12.7mmO.D.15.9mm O.D. 6.4mm I.D.14-16mmI.D.16-20mm I.D. 8-10mmThickness0.8mmThickness1.0mmThickness0.8mm Thickness 10mm Min.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

safety precautions

outdoor unit installation drawings

installation guidelines

refrigerant piping

purging air and checking gas leakage

refrigerant piping work

pump down operation

test run and final check

Daikin RXS50E2V1B Installation Manual

ARXS50E2V1B

RKS50E2V1B

RKS60E2V1B

RKS71E2V1B

RN50E2V1B

RN60E2V1B

RXS50E2V1B

RXS60E2V1B

RXS71E2V1B

RYN50E2V1B

RYN60E2V1B