BGH GMV6 Technical Sales Manual page 123

NOTES:
a. *Under normal condition, pipe length of the first branch of IDU and the furthest IDU is less 40m, if
satisfying the following conditions, the length can be 120m.
Actual total piping length L1 + L2 × 2 + L3 × 2 + L4 × 2 + ... + L9 × 2 + a + b + ... + I + j ≤
①
1,000m.
The distance among each IDU and the nearest branch a, b, c, d, e, f, g, h, i, j ≤ 40m.
②
Pipe length difference of the furthest IDU and the nearest IDU to the first indoor branch L10 - L11 ≤
③
40m.
b. ** When the ODU is on the top, if exceeding 50m, please contact the engineer; when the ODU is at
the bottom, if exceeding 90m, please contact the engineer.
c. When the ODU is on the top, the fall of IDU and ODU is over 50m, the liquid pipe size of ODU to the
first branch shall be increased.
d. When the ODU is at the bottom, the fall of IDU and ODU is over 40m, the liquid pipe size of ODU to
the first branch shall be increased.
e. When the fall of IDU is over 15m, the liquid pipe size shall be increased.
f. If the max.distance between the ODU and the main pipe of the first IDU branch is ≥90m, adjust the
pipe diameter of gas and liquid pipe of the main pipe.
ODU model
GMV-224WM/G-X
GMV-280WM/G-X
GMV-335WM/G-X
GMV-400WM/G-X
GMV-450WM/G-X
GMV-504WM/G-X
GMV-560WM/G-X
GMV-615WM/G-X
GMV-680WM/G-X
GMV-735WM/G-X
GMV-785WM/G-X
GMV-839WM/G-X
GMV-895WM/G-X
GMV-950WM/G-X
GMV-1015WM/G-X
GMV-1064WM/G-X
GMV-1119WM/G-X
GMV-1175WM/G-X
GMV-1230WM/G-X
GMV-1295WM/G-X
GMV-1360WM/G-X
GMV-1399WM/G-X
GMV-1455WM/G-X
GMV-1510WM/G-X
GMV-1565WM/G-X
GMV-1623WM/G-X
GMV-1679WM/G-X
GMV-1734WM/G-X
GMV-1790WM/G-X
GMV6 DC Inverter VRF Units
Pipe diameter of gas pipe (mm)
No need to enlarge the pipe diameter
No need to enlarge the pipe diameter
Φ28.6
Φ28.6
Φ31.8
Φ31.8
Φ31.8
Φ31.8
Φ31.8
Φ38.1
Φ38.1
Φ38.1
Φ38.1
Φ38.1
Φ41.3
Φ41.3
Φ41.3
Φ41.3
Φ41.3
Φ41.3
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Φ44.5
Technical Sales Guide
Pipe diameter of liquid pipe (mm)
No need to enlarge the pipe diameter
Φ12.7
Φ15.9
Φ15.9
Φ15.9
Φ19.05
Φ19.05
Φ19.05
Φ19.05
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
Φ22.2
121