GMV Heat Recovery DC Inverter VRF
21
(2) Note 2: When the ODU is at the up side and the height drop exceeds 50m, please contact
the engineer; when the ODU is at the lower side and the height drop exceeds 90m, please
contact the engineer.
When the ODU is at the up side and the height drop between the IDU and ODU is more than
50m, the liquid pipe size from the ODU to the first manifold of IDU must be enlarged.
When the ODU is at the lower side and the height drop between the IDU and ODU is more
than 40m, the liquid pipe size from the ODU to the first manifold of IDU must be enlarged.
(3) When the height drop among IDUs is more than 15m, the liquid pipe size from the ODU to
the first manifold of IDU must be increased.
(4) When the maximum length of the main pipe from outdoor unit to the first indoor branch≥90m,
then adjust the size of high pressure gas pipe, gas pipe and liquid pipe of main pipe according
to the following table
Outdoor Model
Low pressure gas pipe
Liquid pipe size(mm)
High pressure gas pipe
No need to enlarge pipe size
No need to enlarge pipe size
No need to enlarge pipe size
GMV-VQ280WM/C-X
No need to enlarge pipe size
GMV-VQ335WM/C-X
GMV-VQ400WM/C-X
No need to enlarge pipe size
GMV-VQ450WM/C-X
GMV-VQ560WM/C-X
GMV-VQ615WM/C-X
GMV-VQ680WM/C-X
GMV-VQ730WM/C-X
GMV-VQ840WM/C-X
GMV-VQ895WM/C-X
GMV-VQ950WM/C-X
GMV-VQ1015WM/C-X
GMV-VQ1119WM/C-X
GMV-VQ1175WM/C-X
GMV-VQ1230WM/C-X
GMV-VQ1290WM/C-X
GMV-VQ1400WM/C-X
Φ41.3
GMV-VQ1455WM/C-X
Φ41.3
GMV-VQ1510WM/C-X
Φ41.3
GMV-VQ1565WM/C-X
Φ41.3
GMV-VQ1680WM/C-X
Φ41.3
GMV-VQ1734WM/C-X
Φ41.3
GMV-VQ1790WM/C-X
Φ41.3
GMV-VQ1845WM/C-X
Φ41.3
GMV-VQ1959WM/C-X
GMV-VQ2015WM/C-X
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