Unpacking The Product (Fig. 3); Handling; Installation Area - Riello Collector 2.0 Installer Manual

ENGLISH
Pressure drop in solar collectors (*)
PRESSURE DROP (mbar)
(*) With antifreeze-water mix of 33,3% / 66,7% and heat transfer medium temperature = 20°C.
WIND AND SNOW LOADS ON COLLECTORS
The maximum allowable load for wind and snow (possibly com-
bined) on the collector surface is 500 Pa (corresponding to the
wind speed of 130 km/h).
To determine the maximum wind speed consider:
− building height
− solar system site
− exposure and topography (area/buildings).
The maximum snow load depends on the region and the altitude
of the area.
The fastening elements to the roof (e.g. screws, bolts) must have a
thickness of at least 4 mm.
9
Prevent the accumulation of snow on collectors by installing a
snow-guard grille over collectors, or remove snow on a regular
basis.

7 UNPACKING THE PRODUCT (Fig. 3)

Solar collectors are supplied in packages containing 1, 2, 5 or 7
panels.
Pallet contents:
− collector
− document envelopes containing instruction manual.
9
The instruction manual is an integral part of the solar connec-
tor. Once located, read it thoroughly and keep it safe.
9
STORE IN A DRY PLACE AND DO NOT EXPOSE TO DI-
RECT SUNLIGHT UNTIL THE TIME OF INSTALLATION! The
packaging is not designed to protect the product against rain or
humidity. It can also degrade if exposed to direct sunlight. Fail-
ure to comply with these precautions could lead to irreparable
damage to the product.

8 HANDLING

− Separate the solar collector from the wooden pallet by re-
moving the film wrapping.
9
The white plastic coating covering the collector should not be
removed until the panel is filled with heat transfer fluid.
Once you have removed the outer packaging, proceed as follows
to unpack and handle the solar collector:
− Tilt the solar collector slightly and grip it at the four points
shown (A - Fig. 4) to lift it.
Collector 2.0
Flow rate (l/h)
− Use a hoist or other suitable lifting equipment to hoist the
solar collector on to the roof.
9
Wear suitable personal protective equipment and use suitable
safety devices.
0
Do not dispose of packaging material into the environment,
or leave it within the reach of children, since it can become a
potential hazard. Dispose of packaging material in compliance
with applicable legislation.
0
Do not lift the solar collector by its water fittings (Fig. 5).

9 INSTALLATION AREA

Select the best possible orientation for the solar collectors (ideal-
ly facing south). Avoid positions that are shaded by plants, trees,
buildings or hills, etc. during the day.
In systems in which the summer load is predominant (production of
domestic hot water) aim the collector from east to west with a var-
iable inclination from 20° to 60°. The ideal direction is southwards,
with inclination equal to the latitude of the location -10°. If the sys-
tem sustains the greatest thermal load in the winter (as in systems
that combine domestic hot water production with central heating),
install the collectors facing south (or south-east or south-west) at
an angle greater than 35°. The ideal orientation is southwards, at
an angle equal to the latitude of the location plus 10° (Fig. 6).
Remove all gravel and detritus from the surface on which the sys-
tem is to be installed.
Do not use flat roof or sloping roof mounting frames to install any
other equipment. They are designed only for use wit our solar water
heating systems.
The installation of the solar field changes the pre-existing structure
of the roof. It is necessary to check and possibly adapt all the roof
elements to prevent any seepages or damages caused by wind
and/or snow.
Collectors must be installed at a safety distance from active parts
of electric lines and electric systems as required by the laws and
regulations in force in the country of installation.
In the absence of specific rules, for the the minimum installation
distance required minus the side movements of conductors due to
the action of the wind and of the lowering in height due to thermal
conditions follow what is indicated in Fig. 7.
14
Collector 2.5
Flow rate (l/h)