Installation Guide

Installation and Operating Guide
EN191204 8 / 10
 In order to reduce voltages caused by lightning strikes, the surface area of all conductor loops must
be as small as possible. Modules shall be installed in such a way that sufficient air circulation will be
possible to prevent an overheating of the modules and components.
 All connected electrical components must be designed for the maximum operating voltage of the
system.
2.7 Fire Protection
 For questions regarding building safety and prevention of fires on buildings please contact the
relevant local authority.
 If applicable, use earth fault switches or fuses in accordance with the specifications of the local
authorities.
 Do not use modules near devices or places where flammable gases may be formed.
 The modules are assigned to fire class C and are suitable for installation on roofs of class A.
2.8 Maintenance and Cleaning
Given a sufficient inclination (≥ 15°), the modules will generally require no cleaning (self-cleaning through
rain). In case of heavy dirt deposits, cleaning with water without cleaning agents and with a gentle cleaning
implement (sponge without hard surface) is recommended. In no case must dirt deposits be scraped off dry
with any object as this can cause microscopic scratches.
We recommend regular inspections:
 Regularly check the module for signs of damages and glass breakage
 Check that all electrical connections are secure and free of corrosion
 Check that the cables are undamaged
 Check that the mounting system is securely attached and firm
The most common causes for a low energy yield are:
 Improper or faulty wiring
 Burned-out fuses or triggered power switches
 Shading of the modules by trees, masts or buildings
 Failure of the inverter
 Improper maintenance and cleaning
 Build-up of dirt on the modules
 Unsuitable angle of inclination or alignment of the modules
2.9 Product Identification
Each module has three labels
- 1x type label:
Describes product type, nominal power, nominal current, nominal voltage, no-load voltage,
short-circuit current (measured under standard test conditions (STC), the measurement
tolerance is +/-3%), weight, dimensions, etc. The maximum system voltage is 1000 V DC.