BGH GMV6 Technical Sales Manual page 119

GMV6 DC Inverter VRF Units Technical Sales Guide
f. If the above of the unit has barriers, install the unit according to the following method.
g. If the top of the unit has crown wall (barrier, e.g wind shade), in principle, the distance between the
top unit and top wall is over 3,000mm. If the surrounding space (front, rear, left and right) of the unit
is open, it's required that the distance between the top unit and top wall is over 1,500mm, as the fig
shown. If the size is less than 1,500mm, or the surrounding space of the unit is not open, an exhaust
duct shall be connected to ensure smooth ventilation, as the fig shown.
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