27t If the pressure rises in an hour, either water remains inside the pipe, or there will be a leak.CAUTIONSelecting additional refrigerant chargingf Basic refrigerantThe basic amount of additional refrigerant charged at a factoryModel Refrigerant Factory charge(kg)AM060TXMDEH R-410A 3.3f Charging additional refrigerantThe amount of additional refrigerant charging = The amount of refrigerant charging for pipe +the amount of refrigerant correction charging for an indoor unit.1. The amount of additional refrigerant depending on the pipe size.- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length.Size of liquid pipe (mm) 6,35 9,52 12,7 15,88Additional amount (kg/m) 0,02 0,06 0,125 0,18Additional refrigerant charging calculation = The sum of total length of Ø 9.52 liquid pipe(m) x 60 g + the sum oftotal length of Ø 6.35 liquid pipe(m) x 20 gEx) a(Ø 9.52)=40 m, b+c+d(Ø 9.52)=15 m, e+f+g(Ø 6.35)=15 mThe amount of additional refrigerant = 55 m x 60g + 15 m x 20 g = 3600 g2. The amount of additional refrigerant for each indoor unit.(Unit : kg)Capacity (kW)Model 2.2 2.8 3.6 4.5 5.6 6.0 7.1 8.2 9.0 11.2 12.8 14.0Slim 1way cassette (JSF) (AM***FN1DEH*) 0.25 0.32 0.322way cassette (AM***FN2DEH*) 0.31 0.314Way Cassette (AM***FN4DEH*, AM***NN4DEH*) 0.45 0.45 0.45 0.45 0.57 0.69 0.69360 cassette (AM***KN4DEH*) 0.45 0.45 0.45 0.69 0.69 0.69Global mini 4way cassette(AM***FNNDEH*, AM***NNNDEH*) 0.29 0.29 0.29 0.37 0.37 0.37Slim duct (AM***FNLDEH*, AM***KNLDEH*) 0.24 0.24 0.24 0.24 0.45 0.45MSP duct (AM***FNMDEH*, AM***KNMDEH*) 0.28 0.28 0.32 0.54 0.68 0.68AR5000 (AM***028JNVDKH) 0.22 0.25 0.34 0.34 0.71 0.71 0.71Boracay (AM***KNQDEH*) 0.24 0.32 0.32 0.49 0.49 0.49Ex) When the indoor unit AM022FN1DEH and AM056FN4DEH are combinatedAdditional refrigerant charging = 250g + 450g = 700g3. The total amount of additional refrigerant charging = the amount of refrigerant charging for pipe + the amount ofrefrigerant for each indoor unit.Ex) The amount of additional refrigerant charging = 3600g + 700g = 4300g

Samsung AM TXMDEH Series Installation Manual