Gree SXVD300LCJ2/A-K - Allowable Length and Height Different of Refrigerant Piping of IDU and ODU

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