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Shinco Service Manual
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6. Max. refrigerant piping length and max. height difference
6.1 Piping length and height difference
REFRIGERANT PIPING:M PIPING SIZE O.D:mm MODEL
Max. length Max. Height
difference
Gas Liquid
KFR-25GWZ/BM 15 5 9.52 6.35
KFR-35GWZ/BM
KFR-50GWZ/BM
15 5 12.7 6.35
KFR-70GWZ/BM 15 5 9.52 12.88
6.2 Additional refrigerant Charge (R410A:g)
Model Refrigerant piping length(one way)
Outdoor
unit
precharge
d（G）
5m 6m 7m 8m 9m 10m 11m 12m 13m 14m 15m
KFR-25GW
Z/BM
840 0 20 40 60 80 100 120 140 160 180 200
KFR-35GW
Z/BM
1130 0 30 60 90 120 150 180 210 240 270 300
KFR-50GW
Z/BM
1300 0 30 60 90 120 150 180 210 240 270 300
KFR-70GW
Z/BM
1900 0 50 100 150 200 250 300 350 400 450 500