TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
8 - EN
10.
Maintenance
Our collectors require the minimum maintenance and attendance such as summarized below.
Every two years the following actions must be taken:
I. Check that all the fastening screws of the supports and the screws of the collectors’ holders
are well tightened. If not, fix them properly or change them if necessary.
II. Clean the glass of the flat plate collectors from dust to increase efficiency.
III. Check the level of the thermal fluid and fill the system if necessary using the upper point
(venting point) of it or use any other convenient method.
IV. Check for any leakage in the collectors and joints.
V. Check again the slope of the collectors to avoid any formation of air traps.
10.1.
Installation of collectors PK SL AL AS PART OF A FORCED CIRCULATION CENTRAL
SOLAR SYSTEM
Safety instructions:
1. In case of using ladders, check them in order not to be damaged, and place them on
secure surfaces in inclination ≈70°. For maximum protection use safety belts.
2. We suggest the installer to wear protective gloves, safety shoes and helmet. Also
protective glasses are necessary in some cases.
3. In case that the place of installation is near electrical wires, keep safety distance
(minimum 5 meters) and pay maximum attention when handing long parts of the support
structures or tools for the installation.
10.2.
Selection of installation area
Check with the constructor of the building that the roof can withstand the load of the collectors
full of water and ask for a written confirmation. Check the same with the local technical
authorities if needed.
Our collectors can be installed on flat roofs or on the ground or on sloped roofs with defined
orientation and slope.
For optimum performance, the collectors must face the south, for counties located in the
Northern hemisphere and north for counties located in the Southern hemisphere. In case that it
is not totally possible for the collectors to face the equator, you can turn it towards East up to
30° if major hot water draw is before 2 p.m. or towards West u p to 30° if major hot water draw
is after 2 pm. In both cases, the losses of the total annual solar contribution, is no more than 6%.
To compensate energy losses there is the option to increase the number and surface of the
collectors’ that are going to be installed.
The following points must be considered when selecting the installation area:
The position you will choose for the installation of the solar water heater, should not be shaded
by any obstacles (trees, buildings, etc.) all around the year.
