Gree Ultra Heat GMV-V72W/A-F, Service Manual, Page: 39 / 240

Ultra Heat GMV VRF Technical Service Manual INSTALLATION
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(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.
④
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.
⑤
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.
⑥
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.
2 ODU FIXING
Fix the ODU to the foundation with four M12 bolts securely to reduce vibration and noise.
3 VIBRATION REDUCTIONS 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.