Gree GMV-V72W/A-F Owner's Manual page 19

Ultra Heat GMV Multi VRF
Remark: Equivalent length of one Y-type manifold is about 0.5m (1-3/4feet).
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 (1-3/4feet).
.
R410A Refrigerant System
Total length (actual length) of fitting pipe
Length of farthest
fitting pipe m(feet)
Difference between the pipe length from the
first branch of IDU to the farthest IDU and the
pipe length from the first branch of IDU to the
nearest IDU
Equivalent length from the first branch to the
furthest piping (1)
Height difference Outdoor unit at upper(2)
≤1000(3280-3/4)
Actual length
Equivalent length
Fig.17
Allowable Value
m(feet)
≤165(541-1/4)
≤190(623-1/4)
≤40(131-1/4)
≤40(131-1/4)
≤50(164)
15
Fitting Pipe
L1+L2+L3+L4+...+L9+a+b+...+i+j
L1+L6+L7+L8+L9+j
L10-L11
L6+L7+L8+L9+j
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