Photocomm POWER-VALUE Guide

(as of August 3, 1999 Kyocera Solar, Inc.)
7812 East Acoma Drive
Scottsdale, Arizona 85260
P.O. Box 14670 Scottsdale, AZ 85267-4670
Phone: [phone] Fax: [phone]
E-mail: [e-mail]
Web Site www.kyocerasolar.com
Installation and Assembly
Instructions
January 13, 1997 Rev. 1 (Includes Class C Fire Rating)
Power-Value (PV) Family of
Solar Electric Modules
Module Features
z Single crystal solar cells for optimum charging performance in hot weather or
low light levels.
z
Power output that meets the range of greatest market demand.
z
Heavy duty anodized frame that provides strength and convenient mounting
access.
z Mounting hole pattern conforms to industry standards - fits existing mounting
racks and trackers.
z Weather resistance junction box, including protective diodes, allows for easy
and safe field interconnection.
WARNING!
This Photovoltaic Module produces Electricity when exposed to the sun or other light sources. For your safety
and the safety of others, please read the entire Installation and Assembly Instruction Manual carefully prior to
product installation. Also, carefully read the Module Data Sheet provided with this product. Determine local
permits, installation and inspection requirements before installing module(s). If not otherwise specified, it is
recommended that the requirements of the U.S. National Electric Code (NEC) be followed. Information about
system sizing, design, safety, and operation are available from your Power-Value distributor.

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CONGRATULATIONS!
Congratulations on the purchase of your Power-Value Photovoltaic Module. This manual
provides information for the safe installation and operation of your Power-Value photovoltaic
module. Supplementary technical information, including performance data, is found on the
attached data sheet. Information about system sizing, design, safety, and operation are available
from your Power-Value distributor.
Your Power-Value module is constructed using high quality materials and processes which
results in a durable product intended for many years of useful service. We appreciate your
patronage and welcome suggestions to improve our products and service.
Business office and production facility:
7812 East Acoma Dr
Scottsdale, AZ 85260
602-951-6330
Fax; 602-951-6329
WARNING!
This photovoltaic module produces electricity when exposed to the sun or other light sources.
The electrical hazard from the voltage and current of a single module is low. However, the
voltage increases as modules are connected in series and the available current increases as
modules are connected in parallel. Thus, for a module connected within a system, contact with
electrically active parts of the module such as terminals can result in lethal shock, sparks, and
burns. The only way to eliminate this hazard is to prevent exposure of the module(s) to light.
Work safety:
- Be familiar with the basic principles of electricity and electrical equipment. Use properly
insulated tools and appropriate protective equipment. Obtain and use a voltmeter for all systems
where there is more than one module in series.
- Cover module face(s) completely with opaque material to halt the production of electricity when
working with module wiring. Disconnect module(s) from other sources of electricity, such as
batteries, when working on system.
- Avoid contact with terminals when modules are exposed to light. Always leave junction box
covers in place unless working on wiring. Other than the junction box cover, do not remove any
part installed by Power-Value or disassemble the module.
- Do not attempt to install or use a module with broken front cover glass or a perforated
backsheet.

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Design safety:
- Use this module in systems of up to 600 Volts only.
- Determine local permit, installation and inspection requirements before installing module. If not
otherwise specified, it is recommended that the requirements of the U.S. National Electrical Code
(NEC) be followed. Other requirements may apply for installations on boats and vehicles.
- In actual usage, a photovoltaic module may experience conditions which result in more current
and/ or voltage than reported at standard test conditions. To account for this, the values of Isc
and Voc marked on the module should be multiplied by a factor of 1.25 when determining
component voltage ratings, conductor capacities, fuse sizes, and capacity of controllers. An
additional multiplying factor of 1.25 may also be required by Section 690-8 of the NEC.
- Do not install this module integral with a roof or wall of a habitable structure. It has a Class C
Fire Rating and must be installed over a roof of appropriate fire resistance.
- Ground each module frame.
- Do not concentrate sunlight on modules. Do not install modules where a flammable gas may be
present.
- Rated electrical characteristics are within 10 percent of the measured values at Standard Test
Conditions of: 1000W/m2, 25°C cell temperature and solar spectral irradiance per ASTM E 892.
INSTALLATION
1. Module Handling
This Power-Value module is made using a glass front cover. Although tough, it is subject to
breakage if not properly handled and installed. To help avoid breakage problems:
- Always transport and store the module in the shipping container provided. Do not leave the
module unsupported prior to installation. For example, wind can cause a module which is leaning
against a fence to fall and break. Avoid application of excessive bending or twisting forces to the
module. Avoid stepping on the module or subjecting it to impact.
2. Mounting
- Provide a means of supporting the module that will withstand all expected loads, including those
imposed by wind and snow. The mounting method selected should support the module at an
angle and orientation which will allow efficient production of energy throughout the year. The
location selected should be free of shade from 9AM to 3PM throughout the year. Your Power-
Value distributor can provide further assistance regarding system design.

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INSTALLATION - Continued
- If the module is to be mounted to a roof or wall of a building, use the standoff method whereby
the module is secured parallel to the roof or wall. A minimum of one (1) inch clearance should be
provided for cooling. The minimum tilt angle is fifteen (15) degrees. Do not mount the module
integral with a roof or wall.
- Secure the module using the four mounting holes provided and 1/4 (6mm) corrosion resistant
hardware. Lock washers should be used with this hardware for long term security.
3. Wiring
- To maintain the applicability of the UL Listing, use Type UF copper wire, rated sunlight
resistant, for all wiring exposed to the weather. The wire may be stranded or single conductor.
The minimum size is 12AWG; the size you use may be up to 8AWG depending on the system
design.
- Remove the junction box cover protective lid, being sure to save it, the screws and gasket. The
terminal strip is identified as to the positive (+) and negative (-) module output polarities.
- Strip wire insulation back 5/8 inch (16mm), insert through the cord grip and under the
appropriate terminal screw. Tighten this screw securely. Tighten the cord grip.
- When all wires are installed, re-install the gasket, and cover. Tighten lid screws securely using
the original screws.
- Size and earth the ground wire in accordance with local requirements or the NEC. Attach the
ground wire to the module frame using the hole and hardware provided. Tighten the screw
securely.
MAINTENANCE
1. Every six months inspect all wiring for mechanical damage and corrosion. Yearly, inspect
terminals for tightness and corrosion. Make corrections as required.
2. If deemed desirable, the module(s) may be cleaned using the same methods as for a glass
window.
Warning: do not attempt to clean a module with a broken glass cover or a perforated backsheet.
Such a module can present a serious shock hazard.
3. Once a year, check that growing foliage has not caused module shading. Correct if this
condition has occurred.
4. As required, check that the system voltage and current output (or power output) is consistent
with the expected output. Such a check will help to determine if array cleaning is needed, if there
are loose or corroded connections, or if there is a component problem.

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