GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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2.2.6 Other requirements
Properties of the above-mentioned materials and the rest of materials that are used for the
construction and installation must comply with local rules and regulations.
Wall thickness of copper pipe shall be consistent with above requirements and the design operating
pressure shall not be lower than 3.8MPa (551psi). But if local authority has a higher requirement,
please design and construct according to local safety standards.
Materials of communication cable shall be consistent with above requirements. If there is conflict
between these requirements and local relevant standards, please contact the corresponding
distributor and confirm it with headquarter.
The parallel distance between communication cable and strong current line shall be above 200mm.
Communication cord must not cross with the strong current line.