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1. Hazard warnings and safety instructions
Solar modules generate electricity as soon as they are exposed to light. Voltage of 30 volts and more constitutes a danger in
the event of physical contact. The connection, in series or parallel, of various modules increases the voltage and current
accordingly. Note that the arrangement in series of more than two solar modules can result in voltages that are potentially
fatal.
CAUTION: Danger of fatal electric shock!
The plug-in contacts are fully insulated to prevent them being touched. You should however take the following precautions
when handling the solar modules:
•
Do not insert electrically conductive items into the pin-type or sleeve connectors.
•
Do not install solar modules or wire conduits if their pin-type/sleeve connectors are wet.
•
All work on wires and cables must be carried out with the utmost care and attention.
•
Beware of the high contact-voltages present in the power inverter, even when it is in an idle state.
•
Exercise great care when carrying out work of any kind on the power inverter and/or its wiring system.
Heckert Solar-brand modules are designed for employment as Class A applications: Systems with dangerous output (>
240W), designed for generally unrestricted access, with the presence of hazardous voltages (IEC 61730: > 50V DC;
EN61730: > 120V DC). Modules compatible with safety standards EN IEC 61730-1 and 61730-2, qualified within these
classes of application correspond with the requirements of Protection Class II.
CAUTION: Danger of fatal injury due to arcing!
The opening of a completed live circuit (e.g. disconnection of the DC lead from the power inverter while under load) can
result in fatal injury due to arcing.
•
NEVER disconnect the solar generator from the power inverter while it is still connected to the network!
2. General information regarding PV systems
Alignment
The solar module should be positioned as near as possible due south, in order to ensure optimum energy yield. You can also
align the solar module according to the position of the sun. The module should be inclined at an angle of at least 15°. The
optimum angle of inclination can be calculated using the following formula:
Angle of inclination = degree of latitude of installation site -20°.
Place of installation
The planned site of installation should be as free as possible of obstacles that are likely to create shade (e.g. other buildings,
trees, chimneys, dormer windows, TV aerials, satellite dishes, overhead power lines, etc.), as these items can significantly
reduce the performance of solar modules. Even partial shadows can result in considerable reductions in output. A module is
considered shade-free if sunlight can fall on its entire surface all year round, with at least a minimal amount of light able to
fall on it unhindered even at unfavourable, less-sunny times of year.
Rear ventilation
The output of solar modules is considerably reduced as they heat up. This applies in particular to our Black Edition units,
which – as the name implies – come with a black foil covering on the rear and a black frame. Rear-face ventilation helps
prevent these performance-reducing build-ups of heat. You should therefore ensure, when installing the unit, that there is a
sufficiently large gap at the back for the purposes of ventilation. Ensure also that there are no nearby items – such as
skylights, glazed roofs, etc. – that are likely to spoil the “chimney-draught” effect that this system of ventilation relies on.
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