Allowable Length And Height Different Of Refrigerant Piping Of Idu And Odu - Gree GMV-S120WL/A-S Service Manual

9.3 Allowable Length and Height Different of Refrigerant Piping
of IDU and ODU
L10: Distance from the first indoor branch pipe to the farthest IDU
L11: Distance from the first indoor branch pipe to the nearest IDU
The equivalent distance of IDU branch pipe is 0.5m
Actual total connection pipe length
Length from the ODU to
the farthest IDU
Length difference between the first indoor branch to the
farthest IDU and nearest IDU
Distance from the first indoor branch pipe to the farthest
Height difference between
IDU and ODU (H)
Max height difference between ODU and hydro box
Max height difference between IDUs (including hydro box)
Max length of main pipe (2)
Length between IDU and its nearest branch pipe (3)
Max refrigerant pipe length between ODU and hydro box
Horizontal distance from hydro box to water tank with
internal coil
GMV5 Home DC Inverter Multi VRF Units
Content
Actual length
Equivalent length
IDU (1)
ODU is higher than IDU
ODU is lower than IDU
(h)
Length (m)
≤ 300 L1+L2+L3+L4+...+L9+a+b+...+l+m
≤ 120
≤ 150
≤ 40
≤ 40
≤ 40
≤ 50
≤ 25
≤ 15
≤ 90
≤ 10
≤ 30
≤ 5
148
Remark
L1+L6+L7+L8+L9+h
L10-L11
L6+L7+L8+L9+h
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L1
a、b、c、d、e、f、g、h
i+j+k+l
P or r