Gree GMV5 Series, Service Manual

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GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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8 .2.2 Installation of Photovoltaic Module
The photovoltaic module shall be checked by related department of Party A before using. Common
photovoltaic module is shown as below.
Place it carefully during transportation to avoid collision among photovoltaic sub-accessories and
among photovoltaic sub-accessories and supports. The photovoltaic sub-accessories shall be placed on
the keel and fixed by pressing. Press them properly in order to avoid strong wind and earthquake.
Meanwhile, avoid damage to the glass due to pressing. Place the photovoltaic sub-accessories orderly
and the wiring box shall be placed on the upper end.
8 .2.3 Lay - Out of Cables
The cables shall be laid orderly. Roll the cable shaft for short distance transportation. The cable
educing end shall be at the top of shaft. Reduce attrition with the floor during traction. Install
corresponding cable bridge support. Each wire must be straight and cannot be curved.
The cable shall be reserved with sufficient wiring length at the two ends in junction case and DC
power cabinet, and stuck with label at the end. The cable shall be protected by steel pipe when crossing
the road. The pipe port shall be deburred to avoid cutting the cable during pulling.
During laying wire, make sure the wire size according to the diagram. Before laying, check if the
insulation resistance is in normative range with megameter.
The cable shall be protected by HDPE plastic pipe when passing through the photovoltaic sub-assy
and junction case. The cable shall be protected by steel pipe when crossing the road. The pipe
port shall be deburred to avoid cutting the cable. The bridge support in vertical installation shall be firm
with straight line deviation within 0.5cm and cannot damage the inner wall structure.
8 .2.4 Installation and Wiring of Power Devices
Check the power devices according to devices list, engineering diagram and technical document
before installation, in order to check if the devices, their accessories, certificate of qualification, technical
document and instruction manual are completed. Please tighten the screw used in installation and check
the installation strength.
Installation of: Install it according to the engineering diagram. The cabinet shall be grounded and
each cabinet shall be connected with the base separately. Check if all electronic components in the
cabinet are in accordance with the principle diagram. Check if the rated voltage and control and