Darfon G320 User Manual - Page 3

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G 3 2 0

M i c r o

I n v e r t e r

IMPORTANT SAFETY INSTRUCTIONS

Safety Instructions

PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING ANY PRODUCTS OR

DEVICES & KEEP FOR FUTURE REFERENCE.

This manual contains important instructions for the installation and maintenance

of G320 micro inverters. Before installing, please read these safety instructions

carefully. Take special care to follow the warnings indicated on the unit itself as

well as the safety instructions listed below.

Safety Symbols

To reduce the risk of injury and to ensure the continued safe operation of this

product, the following safety instructions and warnings are marked in this

manual.

WARNING

This indicates the risk of electric

shock. The presence of high

voltage levels may constitute a

risk of injury or death to users and/or installers.

Safety Instructions

• Read all instructions and cautionary marks in the manual carefully before

starting the installation.

• Do not attempt to repair this product; it does not contain user-serviceable

parts. Repairs and internal servicing should only be performed by authorized

service personnel.

• Do not tamper with or open this product. Opening this product may result in

electric shock.

• Perform all electrical installations in accordance with all applicable local

electrical codes and the National Electrical Code (NEC), ANSI/NFPA 70.

• Only qualified electrical personnel should perform the electrical installation

and wiring of this product.

• Be aware that even without an external voltage source connected, the micro

inverter may contain high voltages and there is a risk of electrical shock.

• Connect the micro inverter to the utility grid only after receiving prior

approval from the electrical utility company.

• The temperature of the heat sinks outside of the device can reach over 85°C in

normal operation. To reduce risk of burns, use caution when working with

Manuals-non monitoring system(for BD use)-08023

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CAUTION

This indicates important

information where failure to

comply may result in safety

hazards or cause damage to this product.

micro inverters.

• Do not disconnect the DC power source from the micro inverter without first

disconnecting the AC power source. Both AC and DC power sources must be

disconnected before servicing. Be aware that DC power/voltage is generated

when the photovoltaic array is exposed to light.

• Switch off the circuit breakers before installation and wirings.

• For the safety of installation, remove all conductive jewelry or equipment

during the installation or service of the device parts, connector and/or wiring.

• Do not stand on a wet location while doing installation and wirings. Enclose

the outer covering well before switch on the circuit breakers.

• The micro inverters should be installed as instructed in this manual. Failure to

comply with these precautions or with specific warnings elsewhere in this

manual violates safety standards of design, manufacture, and intended use of

the device. The manufacturer assumes no liability for the customer's failure to

comply with these requirements.

• When a GFDI fault (Ground fault) occurs, the LED will flash alternating

between orange and red. Please refer to the POST-INSTALLATION section for

more introductions.

Surge Suppression

Lightning does not actually need to strike the equipment or building where the

PV system is installed to cause damage. Often, a strike nearby will induce voltage

spikes in the electrical grid that can damage equipment. Artificial spikes such as

those induced by electric motors starting up can also cause damages to the

equipment.

The micro inverters have integral surge protection built-in; however, if the surge

has sufficient energy, the built-in protection in the device would be exceeded and

the device could potentially be damaged. Therefore, external surge protection

MUST be installed as part of any solar installation.

WARNING

When installing a surge protection device (SPD), one MUST follow the original

manufacturer's instructions on how to install the SPD properly. Incorrect

installation of the SPD may still cause damages to the micro inverters. If the

installation site is known for unstable or heavy surges, then it is the

responsibility of the installer to make sure the SPD chosen can adequately

protect the micro inverters.

The following SPD specification is the minimum protection level that is required

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