2. Safe Installation
Please read the documentation supplied with this product first, so that you are familiar with the safety signs and directions before using the product. This product is designed and tested in accordance with international standards. The product should be used for the designated application only.
Warning
DANGER OF ELECTRICAL SHOCK
The product is used in combination with a permanent energy source (battery). Even if the product is switched off, a dangerous electrical voltage can occur at the input and/or output terminals. Always switch the AC power off and disconnect the battery before performing maintenance. When the photovoltaic array is exposed to light, it supplies a dangerous high DC voltage to the inverter. Cover the solar panels or disconnect them.
The product contains no internal user-serviceable parts. Do not remove the front panel and do not put the product into operation unless all panels are fitted. All maintenance should be performed by qualified personnel.
Never use the product at sites where gas or dust explosions could occur. Refer to the specifications provided by the manufacturer of the battery to ensure that the battery is suitable for use with this product. The battery manufacturer's safety instructions should always be observed.
This product is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the product by a person responsible for their safety. Children should be supervised to ensure that they do not play with the product.
Warning
Do not lift heavy objects unassisted
![Warning_heavy.png](image/1669a51ec5c276.png)
2.1. Transport and storage
On storage or transport of the product, ensure that the mains supply and battery leads are disconnected.
No liability can be accepted for damage in transit if the equipment is not transported in its original packaging.
Store the product in a dry environment; the storage temperature should range from –20°C to 60°C.
Refer to the battery manufacturer's manual for information on transport, storage, charging, recharging and disposal of the battery.
Protect the solar modules from incident light during installation, e.g. cover them.
Never touch uninsulated cable ends.
Use only insulated tools.
2.2. Grounding
Battery grounding: this device must be installed in a negative grounded system.
Note: apply a single ground connection (preferably close to the battery) to prevent malfunctioning of the system.
Chassis grounding: A separate earth path for the chassis ground is permitted because it is isolated from the positive and negative terminal.
The USA National Electrical Code (NEC) requires the use of an external ground fault protection device (GFPD). These MPPT chargers do not have internal ground fault protection. The system electrical negative should be bonded through a GFPD to earth ground at one (and only one) location.
The charger must not be connected with grounded PV arrays. (one ground connection only)
The positive and negative of the PV array should not be grounded. Ground the frame of the PV panels to reduce the impact of lightning.
Note
**WHEN A GROUND FAULT IS INDICATED, BATTERY TERMINALS AND CONNECTED CIRCUITS MAY BE UNGROUNDED AND HAZARDOUS.