3710.2. Refrigerant additional charge1. Piping installation by standard piping• At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 30m.(Refer the following table)But when the piping length exceeds 30m, additional charge is required according to the following table.Example:CU-D34DBQ7In case of 50m long pipe (one way), the amount of refrigerant to be replenished is: (50 - 30) x 40 = 800gAttention• Do not decrease the size of the gas piping. (It causes the breakdown of the compressor)10.3. Position of the centre gravityModel Name Standard piping specificationLiquid piping(dia.mm)Gas piping(dia.mm)Gas chargeless length(m)Additional gas volume(g/m)CU-D34DBQ7 (60Hz) 9.52 19.05 30 40CU-D43DBQ7 (60Hz) 9.52 19.05 30 40CU-D50DBQ7 (60Hz) 9.52 19.05 30 40CU-D34DBQ7 (50Hz) 9.52 19.05 20 40CU-D43DBQ7 (50Hz) 9.52 19.05 20 40CU-D50DBQ7 (50Hz) 9.52 19.05 20 40MODEL NAME OUTSIDE DIMENSIONS NET WEIGHT CENTRE OF GRAVITYWIDTH (mm) DEPTH (mm) HEIGHT (mm) kg X (mm) Y (mm) Z (mm)CU-D34DBQ7 900 320 1170 83 560 150 450CU-D43DBQ7 900 320 1170 83 560 150 450CU-D50DBQ7 900 320 1170 83 560 150 450