GENERAL INSTALLATION MANUAL
1. INTRODUCTION
PLEASE READ THIS GUIDE COMPLETELY BEFORE INSTALLING OR USING THE SOLAR ELECTRIC MODULES.
This manual contains essential information of electrical and mechanical installation and safety information which you should know before using XUNZEL
photovoltaic
modules. The information in this manual is described on the basis of XUNZEL’s knowledge and experience. But such information and
suggestions do not constitute a waranty.
Limitation of warranty scope: XUNZEL disclaims all liability from damages or malfunctions if the module i) has been altered or modified by non authorized
people, ii) has not been installed, operated, repaired or maintained in accordance with instructions supplied by XUNZEL, iii) has been exposed to abnormal
physical, thermal or electrical, negligence or accident.
The manufactrurer reserves the right to make changes to the product, specifications or to the manual without prior notice.
2. GENERAL INFORMATION
The installation of PV modules requires a great degree of skill and should only be performed by a qualified licensed professional, including licensed
contractors and licensed electricians. Please, be aware that there is a serious risk of various types of injury occurring during the installation, including
the risk of electric shock.
All XUNZEL PV modules are equipped with a permanently attached junction terminal box that will accept variety of wiring applications or with a special
cable assembly for ease of installation, and they do not require special assembly.
< GENERAL WARNING>
1. Before you attempt to install, wire, operate and maintain the PV modules, please make sure that you completely understand the information described
in this installation manual.
2. Contact with electrically active parts of a PV module such as terminals can result in burns. sparks and lethal shock whether the PV modules is connected
or not.
3. PV modules produce electricity when the sufficient sunlight or other sources illuminate the module surface. When the modules are connected in
series, voltage is cumulative. When the modules are connected in parallel, current is cumulative.
4. Do not connect the PV modules directly to the loads such as motor since the variation of the output power depending on the solar irradiation causes
damage for the connected motor.
IMPORTANT < WARRANTY AND GENERAL SAFETY INSTRUCTIONS >
1. Consult local codes and other applicable laws concerning required permits on regulations concerning installation and inspection requirements.
2. Before installing a PV module, contact appropriate authorities to determine admit, installation and inspection requirements that should be followed.
3. Install PV modules and ground frames in accordance with applicable rules and regulations.
4. PV modules should be installed and maintained by qualified personnel. Only installer/service personnel should have access to the PV module installation
site.
5. No matter where the PV modules are installed. Either roof mounted construction or any other type of structures above the ground, appropriate safety
practices should be followed and required safety equipment should be used in order to avoid possible safety hazards. Note that the installation of
some PV modules on roofs may require the addition of fireproofing depending on local building/fire codes.
6. Please use PV modules with same cell size within series.
7. Follow all safety precautions of other components used in the system.
8. In order to avoid a risk of injury or electrical shock, do not allow anyone to approach the PV module if the person has little knowledge on PV module
or on the measures that should be taken when PV modules are damaged .
9. Do not shade portions of the PV module surface from the sunlight for a long time. The shaded cell may become hot (hot spot phenomenon) which
results in solder joints peeling off.
10. Do not clean the glass surface with chemicals. Do not let wader stay on the glass surface of PV modules for a long time. This creates a risk of white
efflorescence (glass disease) which may result in the deterioration of energy generation.
11. Do not install the PV module horizontally. It may cause dirt or white efflorescence (glass disease) due to water.
12. Do not cover the water drain holes of the frame. There is a risk of frost damage when the frame is filled with water accumulation.
13. When sliding snow load has to be considered, an appropriate measure has to be taken so that PV module frames lower edge of PV modules will not
be damaged.
14. Do not expose PV module to sunlight concentrated with mirrors, lenses or similar means.
15. Turn off inverters and circuit breakers immediately, should a problem occur.
16. In case the glass surface of a PV module is broken, wear goggles and tape the glass to keep the broken pieces in place.
17. A defective PV module may generate power even if it is removed from the system. lt may be dangerous to hit the PV module while exposed to
sunlight. Place a defective PV module in a carton so PV cells are completed shaded.
18. In case of series connection, the maximum open circuit voltage must not be greater than the specified maximum system voltage. The voltage is
proportional to the number of series. ln case of parallel connection, please be sure to take proper measure to block the reverse current flow. The
current may easily flow in a reverse direction.
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