Gree GMV-224WL/C-X, Owner'S Manual

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DC Inverter Multi VRF System
8
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 Fig.4.3:
NOTE
：
Equivalent length of one Y-type branch is 0.5m.
Fig.4.3 Allowable Length and Height Difference of Connection Pipe
Piping parameters of GMV-H224WL/A-X, GMV-H280WL/A-X, GMV-H335WL/A-X,
GMV-224WL/C-X, GMV-280WL/C-X, GMV-335WL/C-X, GMV-280WL/C1-X, GMV-335WL/C1-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 —