14 MSE-SC 65D-180F M43X41C6-03
5.12 Weight of refrigerant uid
This table provides an estimate of that makes it possible to determine in advance how much gas will be needed.
The optimal refrigerant charge must be determined with the unit at normal operating power, in conditions that are near design conditions,
measuring and adjusting excessive heating or cooling.
The table does not take into account various thicknesses of pipes, it refers to a unit in operation (Tev = 5°C, Tcond = 45°C).
It is necessary to add to the indicated quantities the amounts required for the two units and for the gas pipes.
ext diameter mm 28 35 42 54 64 76 88.9
R-134a 6.0 9.5 13.6 22.3 32.1 46.3 64.4
R-407C 5.7 9.0 12.9 21.2 30.6 44.0 61.2
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