Gree GMV-120WL/C-X, User Manual

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DC Inverter Multi VRF System
11
4.2.2 Allowable Length and Height Difference of Connection Pipe
Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown
in the figure below:
NOTE!: Equivalent length of one Y-type branch is 0.5m.
Fig.8 Allowable Length and Height Difference of Connection Pipe
Piping parameters of GMV-80WL/A-T, GMV-100WL/A-T, GMV-121WL/A-T GMV-80WL/C-T,
GMV-100WL/C-T, GMV-121WL/C-T.
——
Allowable
value
Fitting pipe
Total length (actual length) of fitting pipe 250m L1+L2+L3+a+b+c+d
Length of farthest fitting pipe (m)
Actual length 100m
L1+L2+L3+d
Equivalent length 120m
From the 1
st
branch to the farthest indoor pipe 40m L2+L3+d
Height difference between ODU and
IDU
ODU at upper side 30m ——
ODU at lower side 30m ——
Height difference between IDUs 10m ——
Piping parameters of GMV-141WL/C-T, GMV-120WL/C-T, GMV-140WL/C-T, GMV-160WL/C-T,
GMV-120WL/C-X, GMV-140WL/C-X, GMV-160WL/C-X.
——
Allowable
value
Fitting pipe
Total length (actual length) of fitting pipe 300m L1+L2+L3+a+b+c+d
Length of farthest fitting pipe (m)
Actual length 120m
L1+L2+L3+d
Equivalent length 150m
From the 1
st
branch to the farthest indoor pipe 40m L2+L3+d
Height difference between ODU and
IDU
ODU at upper side 50m ——
ODU at lower side 40m ——
Height difference between IDUs 15m ——