Gree GMV-224WM/G-X Owner's Manual page 23

3.3.3 Allowable pipe length and height difference among indoor and outdoor units
Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown
in the figure below.
L10: Length from the first branch to the farthest IDU;
L11: Length from the first branch to the nearest IDU;
Equivalent length of branch of IDU is 0.5m.
Total length (actual length) of fitting pipe
Length of farthest fitting pipe(m)
Equivalent length from the first branch to the furthest
indoor unit
Height difference between
outdoor unit and indoor unit H
Height difference between indoor units
—
Actual length
Equivalent length
*1
Outdoor unit at upper
*2
Outdoor unit at lower
Fig.3.3.1
Length(m)
≤1000
≤200
≤240
≤120
≤100
≤110
≤30
19
GMV DC Inverter VRF
Fitting Pipe
L1+L2+L3+L4+...+L9+a+b+...+i+j
L1+L6+L7+L8+L9+j
L6+L7+L8+L9+j
—
—
—
Unit: m