Samsung AM***FXVAF Series Installation Manual

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36Refrigerant pipe installationf Method to calculate total amount of additional refrigerant- Amount of additional refrigerant depending on the pipe length ( )- Amount of additional refrigerant for each indoor unit ( ) = ∑(Amount of additional refrigerant for each connectedindoor unit) ❇ Refer to the table- Total amount of additional refrigerant = +❋ Sum of total amount of additional refrigerant and the basic amount of refrigerant should not exceed 100kg (220lb). If therefrigerant exceeds 100kg (220lb), separate the module so that weight of the refrigerant doesn't exceed 100kg (220lb).Ex.) For AM144✴✴✴, basic amount of refrigerant is 8.7kg (19.1lb), therefore total amount of additional refrigerant( + ) should not exceed 91.3kg (200.9lb).f Example of refrigerant calculation for HP modelsClassification Size of liquid pipe[mm (inch)]Length [m (ft)]Unit amount ofrefrigerant [kg/m(lb/ft)]Amount ofadditionalrefrigerant [kg (lb)]Total amountof additionalrefrigerant [kg (lb)]× ∑( × )Liquid pipe ( )Ø6.35 (Ø1/4) 35 (114.8) 0.02 (0.013) 0.7 (1.49)5.575 (12.19)Ø9.52 (Ø3/8) 50 (164.0) 0.06 (0.040) 3.0 (6.56)Ø12.70 (Ø1/2) 15 (49.2) 0.125 (0.084) 1.875 (4.13)Classification Model name ofindoor unitNumber of unitsUnit amount ofrefrigerant [kg/EA(lb/EA)]Amount ofadditionalrefrigerant [kg (lb)]Total amountof additionalrefrigerant [kg (lb)]× ∑( × )Indoor unit ( )4way cassette(AM018FN4DCH) 4 0.45 (0.99) 1.8 (3.96)3.30 (7.26)Slim duct(AM024FNLDCH) 2 0.45 (0.99) 0.90 (1.98)Slim duct(AM012FNLDCH) 1 0.35 (0.77) 0.35 (0.77)1way cassette(AM012FN1DCH) 1 0.25 (0.55) 0.25 (0.55)- Total amount of refrigerant ( + ) = 5.575 + 3.30 = 8.875 (kg)= 12.19 + 7.26 = 19.45 (lb)f Example of refrigerant calculation for HR modelsClassification Size of liquid pipe[mm (inch)]Length [m (ft)]Unit amount ofrefrigerant[kg/m (lb/ft)]Amount ofadditionalrefrigerant [kg (lb)]Total amountof additionalrefrigerant [kg (lb)]× ∑( × )Liquid pipe ( )Ø 6.35 (Ø 1/4) 15 (49.2) 0.02 (0.013) 0.3 (0.64)11.965 (26.24)Ø 9.52 (Ø 3/8) 112 (367.5) 0.06 (0.040) 6.72 (14.70)Ø 12.70 (Ø 1/2) 25 (82.0) 0.125 (0.084) 3.125 (6.89)Ø 15.88 (Ø 5/8) 10 (32.8) 0.18 (0.121) 1.8 (3.97)Ø 6.35 (Ø 1/4)(EEV Kit ~ indoorunit)2 (6.6) 0.01 (0.0067) 0.02 (0.04)k}tGzG⴬㨰䛙G㐘㞬ὤGptluki]_TWZ_XYhTW_UGGGZ] YWX_TW]TXXGGG㝘䟸G[a[_aY`