GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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Install where it can sufficiently support the weight of the outdoor unit. If the support strength is not
enough, the outdoor unit may drop and hurt people.
Install where the outdoor unit may not fall in strong wind or earthquake. If there is a fault in the
supporting conditions, the outdoor unit may fall and hurt people.
Please take extra cautions on the supporting strength of the ground, liquid outlet treatment
(treatment of the liquid flowing out of the outdoor unit in operation), and the passages of the pipe and
wiring, when making the ground support.
Do not use tube or pipe for liquid outlet in the Base pan. Use drainage instead for liquid outlet. The
tube or pipe may freeze and the liquid may not be drained.
Be sure to remove the MDF (wood support) of the bottom side of the outdoor unit Base Pan before
fixing the bolt. It may cause the unstable state of the outdoor settlement, and may cause freezing of the
heat exchanger resulting in abnormal operations.
Be sure to remove the MDF (wood support) of the bottom side of the outdoor unit before welding.
Not removing MDF causes hazard of fire during welding.
4.2 ODU Fixing
Fix the ODU to the foundation with four M12 bolts securely to reduce vibration and noise.
4.3 Vibration Reduction for ODU
The ODU must be fixed securely. Apply a thick rubber sheet or corrugated damping rubber pad with
thickness of 200 mm (7.87inch) or more and width of 100 mm(3.94inch) or more between the ODU and
the foundation, as shown in the following figures.
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