1 General safety precautionsInstaller and user reference guide5FFA25~60A2VEB(9)Split system air conditioners4P550955-4 – 2018.08Contains fluorinated greenhouse gases21 1122 kgtCO2 eq1000GWP × kg==+kg=kg=GWP: xxxR322 Determine which graph or table to use.▪ For indoor units: Is the unit ceiling-mounted, wall-mounted orfloor-standing?▪ For outdoor units installed or stored indoors, and field pipingin unventilated spaces, this depends on the installationheight:If the installation height is… Then use the graph or table for…<1.8 m Floor-standing units1.8≤x<2.2 m Wall-mounted units≥2.2 m Ceiling-mounted units3 Use the graph or table to determine the minimum floor area.010 2030 4050 6070 8090 100110 120130 140150 160170 180190 200210 220230 240250 260270 280290 300310 320330 340350 360370 380390 400410 420430 440450 460470 480490 500510 520530 5405501.822.22.42.62.833.23.43.63.844.24.44.64.855.25.45.65.866.26.46.66.877.27.47.67.81.843 7.9568.0Amin (m2 )Floor-standing unit (c)Wall-mounted unit (b)Ceiling-mounted unit (a)m (kg)Ceiling-mountedunit(a)4.6 13.4 4.6 1804.8 14.6 4.8 1965.0 15.8 5.0 213≤1.842 —5.2 17.1≤1.842 —5.2 2301.843 3.645.4 18.51.843 28.95.4 2482.0 3.955.6 19.92.0 34.05.6 2672.2 4.345.8 21.32.2 41.25.8 2862.4 4.746.0 22.82.4 49.06.0 3062.6 5.136.2 24.32.6 57.56.2 3272.8 5.536.4 25.92.8 66.76.4 3493.0 5.926.6 27.63.0 76.66.6 3713.2 6.486.8 29.33.2 87.26.8 3943.4 7.327.0 31.03.4 98.47.0 4173.6 8.207.2 32.83.6 1107.2 4413.8 9.147.4 34.73.8 1237.4 4664.0 10.17.6 36.64.0 1367.6 4924.2 11.27.8 38.54.2 1507.8 5184.4 12.37.956 40.14.4 1657.956 539m (kg) A min (m2 )4.6 20.04.8 21.85.0 23.6≤1.842 —5.2 25.61.843 4.455.4 27.62.0 4.835.6 29.72.2 5.315.8 31.82.4 5.796.0 34.02.6 6.396.2 36.42.8 7.416.4 38.73.0 8.516.6 41.23.2 9.686.8 43.73.4 10.97.0 46.33.6 12.37.2 49.03.8 13.77.4 51.84.0 15.17.6 54.64.2 16.77.8 57.54.4 18.37.956 59.9Wall-mountedunit(b)m (kg) A min (m 2 )Floor-standingunit(c)m (kg) A min (m2 )m Total refrigerant charge in the systemAmin Minimum floor area(a) Ceiling-mounted unit (= Ceiling-mounted unit)(b) Wall-mounted unit (= Wall-mounted unit)(c) Floor-standing unit (= Floor-standing unit)1.3.3 RefrigerantIf applicable. See the installation manual or installer reference guideof your application for more information.NOTICEMake sure refrigerant piping installation complies withapplicable legislation. In Europe, EN378 is the applicablestandard.NOTICEMake sure the field piping and connections are NOTsubjected to stress.WARNINGDuring tests, NEVER pressurize the product with apressure higher than the maximum allowable pressure (asindicated on the nameplate of the unit).WARNINGTake sufficient precautions in case of refrigerant leakage. Ifrefrigerant gas leaks, ventilate the area immediately.Possible risks:▪ Excessive refrigerant concentrations in a closed roomcan lead to oxygen deficiency.▪ Toxic gas may be produced if refrigerant gas comesinto contact with fire.