GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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packaging bag may suffocate children to death.
• When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting with
3-point support may make Outdoor Unit unstable, resulting in a fall.
• Use 2 belts of at least 3m (26.2ft) long.
• Place extra cloth or boards in the locations where the casing comes in contact with the sling to
prevent damage.
• Hoist the unit making sure it is being lifted at its center of gravity.
4 REQUIREMENTS ON FOUNDATION INSTALLATION
4.1 ODU 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 (7.87inch) to 300 mm
(11.8inch), which is determined based on the size of the unit.
(2) The proportion of the cement, sand, and stone for the concrete is 1:2:4. Place 10 reinforced steel
bars (φ10 mm) with a space between of 30 mm.
(3) Use the mortar to flatten the surface of the foundation. Sharp edges must be chamfered.
(4) When the foundation is built on a concrete floor, crushed stones are not required. But the
foundation surface must be roughened.
(5) Clear the oil stains, crushed stones, dirt, and water in the reserved bolt hole of the foundation
and install a temporary cover before installing bolts.
(6) Build a drainage ditch around the foundation to discharge the condensate water.
(7) If the air conditioner is installed on the roof, check the intensity of the building and take
waterproof measures.
(8) If a u-steel foundation is adopted, the structure must be designed with sufficient rigidity and
strength.
Summary of Contents for GMV5 Series
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