Daikin FLY22GAV1NB [11/13] Indoor unit
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Daikin FLY22GAV1NB [11/13] Indoor unit

Daikin FLY22GAV1NB [11/13] Indoor unit

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INDOOR UNIT FLARING THE PIPE END Cut exactly at right angles 1 Cut the pipe end with a pipe cutter 2 Remove burrs with the cut surface facing downward so that the chips do not enter the pipe 3 Put the flare nut on the pipe 4 Flare the pipe 5 Check that the flaring is properly made Flaring Set exactly at the position shown below A r A Incomplete flaring may cause refrigerant gas leakage REFRIGERANT PIPING 1 Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them fully with the torque wrenches Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas 2 To prevent gas leakage apply refrigeration machine oil on both inner and outer surfaces of the flare RIGID 0 5 mm IMPERIAL 1 0 mm Check Rare s inner surface must J Warning be flaw free 2 Remove burrs i The pipe end must I be evenly flared in a perfect circle 1 Make sure that the flare nut is fitted Flare nut tightening torque Gas side 1 2 inch 5 8 inch 3 8 inch 49 5 60 3N m 32 7 39 9N m 61 8 75 4N m 333 407kgf cm 505 615kgf cm 630 769kgf cm Liquid side 1 4 inch 14 2 17 2N m 144 175kgf cm Valve cap tightening torque Gas side 1 2 inch 5 8 inch 3 8 inch 26 5 32 3N m 48 1 59 7N m 21 6 27 4N m 220 280kgf cm 270 330kgf cm 490 610kgf cm Liquid side 1 4 inch 21 6 27 4N m 220 280kgf cm 10 8 14 7N m 110 150kgf cm Service port cap tightening torque Cautions on Pipe Handling Protect the open end of the pipe against dust and moisture All pipe bends should be as gentle as possible Use a pipe bender for bending Bending radius should be 30 to 40 mm or larger i i Ii Be sure to place a cap X tZZJ Wall If no flare cap is available cover the flare mouth with tape to keep dirt or water out Selection of Copper and Heat Insulation materials When using commercial copper pipes and fittings observe the following Insulation material Polyethylene foam Heat transfer rate 0 041 to 0 052kW mK 0 035 to 0 045 kcal mh C Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below Gas side O D 9 5mm O D 12 7mm Thickness 0 8mm Gas pipe thermal insulation Liquid side O D 15 9mm O D 6 4mm I D 12 15mm I D 14 16mm Thickness 1 Omm Thickness 0 8mm I D 16 20mm Liquid pipe thermal insulation I D 8 10mm Thickness 10mm Min Use separate thermal insulation pipes for gas and liquid refrigerant pipes R

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