GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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the ODU, three basic parts are required: 1) ODU; 2) canvas; and3) steel-plate ventilating duct. The ODU
must be interconnected with the ventilating duct through canvas to prevent abnormal vibration and noise
generated by the steel-plate ventilating duct. The joint part must be tightly sealed with tin foil to avoid air
leakage.
(2) Preparations for connecting an ODU to static pressure ventilating duct
1) The ODU is installed properly based on the unit installation requirement.
2) The steel-plate ventilating duct is designed based on the unit and engineering requirement,
and is installed properly according to the engineering standards.
3) Based on the unit dimensions and the size of steel-plate ventilating duct, prepare materials
such as canvas casing, tin foil, steel bar and tapping screw, as well as tools such as
hand-operated electric drill, air screw driver and screwdriver.
(3) Basic operation of connecting an ODU to static pressure ventilating duct
Two methods are available to connect an ODU to static pressure ventilating duct.
Method 1
1) Install the ODU (2) and steel-plate ventilating duct (1). Use an air screw driver or screwdriver to
unfasten the tapping screws that fixing the top case component (3), and then remove the top
case component. Take out the grille from the top of the top case component and leave the top
case.
2) Put the canvas casing inside out (4). Cover one end of the canvas casing over the unit
3) Downward until the canvas end face is aligned with the unit or a bit higher than the top of the unit.
Then, put the top case back (3) and tightly press the canvas casing (4). Use tapping screws to fix
the top case onto the unit (3).
4) Pull up the canvas casing reversely (4) and use the steel bar (5) to press the canvas
5) Casing tightly onto the counter flange of the steel-plate ventilating duct (1). Use a hand-operated
electric drill to drill holes and fasten the parts by using tapping screws.
6) Use the tin foil to seal the joints and check the joints' reliability.
Step 1 Step 2
Summary of Contents for GMV5 Series
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