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6. Limitation Values on Pipe lnstallation
Item Unit Description Standard Maximum
A,B,C Liquid Pipe mm Size of the liquid side connection pipe φ6.35 /
A,B,C Gas Pipe mm Size of the gas side connection pipe φ9.52 /
L1 (One Way) m Max.piping length between IU and OU of the way ≤ 10 ≤ 25
L2 (One Way) m Max.piping length between IU and OU of the way ≤ 10 ≤ 25
L3 (One Way) m Max.piping length between IU and OU of the way ≤ 10 ≤ 25
L1+L2+L3 m Total liquid piping length ≤ 30
3U55<50
3U70<60
H
m
Drop between every two indoor units when the location of
the outdoor unit is among indoor units
≤ 1 ≤ 15
m
Drop between every two indoor units when the location of
the outdoor unit is at one side of indoor units
≤ 1 ≤ 7.5
H+ m Drop between the outdoor unit and the indoor unit ≤ 5 ≤ 15
H
m
Drop between the outdoor unit and the indoor unit when the
location of outdoor unit is among the indoor units
≤ 5 ≤ 7.5
m
Drop between the outdoor unit and the indoor unit when the
location of outdoor unit is at one side of indoor units
≤ 5 ≤ 15
The piping length information, please refer the following table.
3U55S2SR2FA 3U70S2SR2FA
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