Gree GMV-VQ280WM/C-X Owner's Manual page 23

GMV Heat Recovery DC Inverter VRF
3.2.4 Installation Space Requirements for Equipment Floor
When the outdoor unit is installed in the equipment floor, it needs to connect an air exhaust duct.
The opening ratio of the shutters in the equipment floor is not less than 60%, and the horizontal
angle of louvers is less than 20°.
3.2.5 Diagram of installation foundation
The concrete foundation of the ODU must be strong enough. Ensure that the drainage is smooth
and that the ground drainage or floor drainage is not affected.
Requirements on the concrete foundation are as follows:
(1) The concrete foundation must be flat and have enough rigidity and strength to undertake the
unit's weight during running. The height of the foundation is 200 mm to 300 mm, which is
determined based on the size of the unit.
(2) Build a drainage ditch around the foundation to discharge the condensate water.
(3) If the air conditioner is installed on the roof, check the intensity of the building and take
waterproof measures.
(4) If a u-steel foundation is adopted, the structure must be designed with sufficient rigidity and
strength.
Fig.3.2.9
Fig.3.2.10
19
Unit：mm
Unit：mm