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Application Information
5) Additional Charge
The refrigerant is pre-charge in the outdoor unit. If the piping length is less than 7.5m, then additional charge
after vacuuming is not necessary. If the piping length is more than standard piping length then use the addi-
tional charge value as indicated in the table.
Cooling Only
Indoor FCRN18FXV1S FCRN24FXV1S FCRN30FXV1S
Outdoor RN18CXV1S2 RR24CXV1S2 RR30CXV1S2
Add. Charge, g/m 22 10 24
Indoor FCRN36FXV1S FCRN42FXV1S FCRN45FXV1S
Outdoor RR36DXV1S2 RR42DXY1S2 RR45DXY1S2
Add. Charge, g/m 45 24 24
Example: FCRN24F & RN24C with 13m piping length, additional piping length is 5.5m. Thus,
Additional charge = 5.5[m] x 10[g/m]
= 55[g]
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