4
Winter
The solar modules should be positioned in such a manner that as little snow as possible falls on them during winter. A short
distance with respect to the eaves and a roof inclination of <20° are both likely to lead to accumulations of snow on the
bottom row of modules. Check the openings in the hollow profile sections of the module frame, and keep the corners free of
dirt, so that condensation water can drain off freely.
Cleaning/maintenance
With a sufficient inclination of the modules (>15°), cleaning is generally not required (self-cleaning by rain/snow). However,
ambient conditions can have a strong influence on the soiling of modules, which should be checked at yearly intervals for
accumulations of dirt. If the modules do become soiled, they should be cleaned when cool (e.g. during the early morning),
using plenty of lukewarm water and a soft scouring pad. DO NOT use sharp, abrasive or pointed implements of any kind to
clean the surface. Modules with AR glass should be cleaned by using plenty of lukewarm, demineralised water and clean,
lint-free cotton, microfiber or paper towels. Please note that sudden, extreme changes in temperature can create tension
strain in the glass, resulting in irreparable damage to the module. Greasy or oily residues can be removed with alcohol or a
mixture of alcohol and water. The following should all be avoided: strong acids, caustic solutions, petrol- based cleaners,
steam or heat- based cleaners, cleaning agents containing silicon oils, fluorides or waxes, polishes, alkaline cleaners,
cleaners, cleaners containing scouring agents and high pressure cleaners. All methods and means that replace Na ions in
the glass surface are unsuitable for the cleaning of glass. All abrasive cleaning agents and utensils are equally unsuitable for
this purpose.
CAUTION: When carrying out cleaning and maintenance work, take care to ensure that the earth (ground)
connection is not broken or damaged.
3. Delivery and handling of modules
Check the delivery on arrival to ensure that all items are complete and undamaged. Heckert Solar will only recognise transit
damage if it has been recorded on the driver’s delivery note and reported immediately in writing. Our modules are normally
delivered in an upright position on a non-returnable pallet, so that one person can remove the individual units without risk
of back injury. The modules should be handled with great care. Laminated items supplied without a module frame are
particularly sensitive to impact damage. Unpacking, transport and interim storage should therefore be carried out with
utmost care. Leave the modules in their packaging until you intend to install them. DO NOT stack one pallet on top of
another.
CAUTION: Carefully follow the unpacking instructions printed on the packaging material. DO NOT remove the
rear retaining tape at this stage.
CAUTION: Handle the modules with great care!
•
Always lift and carry the modules using both hands. Do not use the connection box or cable to lift the module;
do
not pull
on the connection cable at any time. (See Fig. 5 on page 9).
•
Do not expose the modules to extreme vibrations. Lower the modules gently when placing them on a hard surface.
Do not stand the modules on their corners. When stacking one module on top of another, always place a layer of
protective material in between. DO NOT place objects of any kind on top of the modules.
NEVER stand on the
modules.
Do not drop the modules; Do not handle them with hard or pointed implements of any kind.
•
The modules should be connected with great care, without using force. Keep all electrical contacts clean and dry.
•
If you need to store the modules temporarily, ensure that they are kept in a dry, well-ventilated room.
•
In order to keep a proper record of fitting, you should note down the serial number on the system layout plan kept
at the place of installation.
CAUTION: Carefully follow the special information on the handling of modules with AR glass
The surface of the module has a resistance to mechanical or chemical influences comparable with non-coated modules.
Therefore they should be treated with the same degree of carefulness. Due to the special reflective properties slight
contamination is, however, better visible. In particular, greases and oils in small amounts are already visible and can
influence transmission. In order to avoid these marks, the modules should be handled with care already with unpacking and
assembly and the surface of the modules should be touched exclusively using clean gloves.
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