Gree GMV-Y72WM/C-F Owner's Manual page 53

Photovoltaic Direct-driven Inverter VRF
before using. Common photovoltaic battery sub-assy is shown as below.
Monocrystalline
Silicon sub-assy
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 t o pressing.
Place the photovoltaic sub-accessories orderly and the wiring box shall be placed on the upper
end.
4.9.2.3 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.
4.9.2.4 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 sep arately. Check if all electronic
components in the cabinet are in accordance with the principle diagram. Check if the rated
voltage and control and operation power voltage are in accordance with the related
Multicrystal
silicon sub-assy
Fig.4.9.2
49
Thin film sub-assy