18-EN
INSTALLATION and OPERATION MANUAL
7. Commissioning
Must be performed by an authorized service technician/service shop for such operations.
Before commissioning of solar collector into operation, check:
The air-tightness of all connections
System air purging
Insulation of pipelines: must be UV resistant and temperature shock proof as well as bird- and
rodent-proof in structure.
Electrical connections: controller, pump
8. Damage prevention and service maintenance of collectors
Any changes in design or construction of solar collectors are strictly prohibited. Detection of
such makes warranty null and void. As changes in design and construction shall be
considered the removal of any manufacturer-embedded items, incorporation of additional
components in the collector, replacement of any components with similar or analogues not
explicitly approved by the manufacturer.
8.1
It is recommended that yearly maintenance be carried out by an authorized service.
All service
maintenance must be logged on the warranty card.
-
Checkup of operating pressure, pump operation, hydraulic connections.
-
Checkup of heat carrier fluid, replacement thereof.
8.2. Cleaning of collectors from dust deposits, fallen dry leaves and twigs
Keeping the collector surface clean is a prerequisite for good performance. A dusty collector (due to lack of
rainfall, dusty ambience) can be cleaned up in early morning hours before it is heated by sunlight using:
-
Warm water, soap/glass cleaner solution and a soft cloth when the collector is mounted in an
easily accessible and safe place;
-
Pressurized water jet when the collector is mounted in a hardly accessible place.
-
8.3. Replacing of broken (damaged) VTC-tube
In any event of broken collector tube it needs to be replaced as quickly as possible. Despite the damaged
tube, the collector can still operate, but its efficiency will drop. Clean broken glass to prevent future
injuries. We recommend that replacement of the broken collector tube be carried out by an authorized
installer / service observing all safety norms.
