Gree GMV-S280W/A-X

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