Helios 6T Series, Operation/Maintenance And Installation

Page: 24 / 27

INSTALLATION MANUAL – 2012
23
HUSA-EN-UL-REV 2.0 APR 16 2012
MAINTENANCE
• Cleaning the modules improves their optimal performance. The cleaning should always be done using
clean water with low calcium concentration and without detergents or abrasives. The water should not be
applied at high pressure and scrapers or other cleaning tools should not be used as they may cause
scratches on the glass. Avoid producing a thermal shock using cold water when glass could be at a very
high temperature (e.g. at noon).
• A thorough visual inspection of the modules should be conducted once or twice a year, noting possible
effects of aging or corrosion. In this inspection special attention should be given to the integrity of the
glass, the aluminum frame, the silicone seals, the waterproof of the junction box, oxidation of the contacts
between cells and condensation in the interior of the laminate.
• Testing of all wiring and connections should be done at least once a year. The integrity and waterproof of
all the parts that make up the wiring and connections of the solar installation should be tested: junction
boxes, isolation of outdoor cables, protective tubing, connection links of connectors, support cables, fuse
boxes, etc. Only qualified personnel duly trained and equipped for the job should do this work along with
the measuring of isolation distances and resistance of the installation to the ground.