BGH GMV6 - 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.
①
Actual total piping length L1 + L2 × 2 + L3 × 2 + L4 × 2 + … + L9 × 2 + a + b + … + I + j ≤
1,000m.
②
The distance among each IDU and the nearest branch a, b
,
c
,
d
,
e
,
f
,
g
,
h
,
i
,
j ≤ 40m.
③
Pipe length difference of the furthest IDU and the nearest IDU to the first indoor branch L10 - L11 ≤
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 Pipe diameter of gas pipe (mm) Pipe diameter of liquid pipe (mm)
GMV-224WM/G-X No need to enlarge the pipe diameter No need to enlarge the pipe diameter
GMV-280WM/G-X No need to enlarge the pipe diameter
Φ
12.7
GMV-335WM/G-X
Φ
28.6
Φ
15.9
GMV-400WM/G-X
Φ
28.6
Φ
15.9
GMV-450WM/G-X
Φ
31.8
Φ
15.9
GMV-504WM/G-X
Φ
31.8
Φ
19.05
GMV-560WM/G-X
Φ
31.8
Φ
19.05
GMV-615WM/G-X
Φ
31.8
Φ
19.05
GMV-680WM/G-X
Φ
31.8
Φ
19.05
GMV-735WM/G-X
Φ
38.1
Φ
22.2
GMV-785WM/G-X
Φ
38.1
Φ
22.2
GMV-839WM/G-X
Φ
38.1
Φ
22.2
GMV-895WM/G-X
Φ
38.1
Φ
22.2
GMV-950WM/G-X
Φ
38.1
Φ
22.2
GMV-1015WM/G-X
Φ
41.3
Φ
22.2
GMV-1064WM/G-X
Φ
41.3
Φ
22.2
GMV-1119WM/G-X
Φ
41.3
Φ
22.2
GMV-1175WM/G-X
Φ
41.3
Φ
22.2
GMV-1230WM/G-X
Φ
41.3
Φ
22.2
GMV-1295WM/G-X
Φ
41.3
Φ
22.2
GMV-1360WM/G-X
Φ
44.5
Φ
22.2
GMV-1399WM/G-X
Φ
44.5
Φ
22.2
GMV-1455WM/G-X
Φ
44.5
Φ
22.2
GMV-1510WM/G-X
Φ
44.5
Φ
22.2
GMV-1565WM/G-X
Φ
44.5
Φ
22.2
GMV-1623WM/G-X
Φ
44.5
Φ
22.2
GMV-1679WM/G-X
Φ
44.5
Φ
22.2
GMV-1734WM/G-X
Φ
44.5
Φ
22.2
GMV-1790WM/G-X
Φ
44.5
Φ
22.2
GMV6 DC Inverter VRF Units Technical Sales Guide
121