Installation; Installation Safety - JinkoSolar JKM420N-54HL4-B (MC4) Installation Manual

This will damage module.
 Do not clean the glass with chemicals. Only use tap water. Make sure the module surface
temperature is cool to the touch. Cleaning modules with cool water when module surface
temp is high may result in glass breakage.
 Do not disconnect any of the modules when under load.
 When looking at PV modules with anti-reflection (AR) coating technology, it will be normal
to see some cells with a slight color difference at different angles.
 Connector of junction box can not be contacted with oily substances, for example, lubricant,
rust inhibitor etc.

2. Installation

2.1 Installation safety

 Always wear protective head gear, insulating gloves and safety shoes (with rubber soles).
 Keep the PV module packed in the carton until installation.
 Do not touch the PV module unnecessarily during installation. The glass surface and the
frame may be hot. There is a risk of burns and electric shock.
 Do not work in rain, snow or windy conditions.
 Due to the risk of electrical shock, do not perform any work if the terminals of the PV module
are wet.
 Use insulated tools and do not use wet tools.
 When installing PV modules, do not drop any objects (e.g., PV modules or tools).
 Make sure flammable gasses are not generated or present near the installation site.
 Insert module connectors fully and correctly. An audible "click" sound should be heard. This
sounds confirms the connectors are fully seated. Check all connections.
 The module leads should be securely fastened to the module frame, Wire Management
should be done in a way to avoid the connector from scratching or impacting the back sheet
of the module.
 Do not touch the junction box and the end of the interconnect cables (connectors) with bare
hands during installation or under sunlight, regardless if the PV module is connected to or
disconnected from the system.
 Do not expose the PV module to excessive loads on the surface of the PV module or twist
the frame.
 Do not hit or put excessive load on the glass or back sheet, this may break the cells or
cause micro cracks.
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