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SOLATHERM
reserves the right to modify characteristics of the products or their accessories and components without prior notice.
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GENERAL INSTALLATION INSTRUCTIONS
•
Always make sure that the location chosen for the installation of the solar water heater is not
shaded by any obstac
les (walls or other structures, trees and vegetation, other buildings, etc…)
at any moment. It is recommended to ensure at least 4 hours of direct sunlight around mid-day
during the winter solstice. In case of obstacles please observe minimum distance of the
collector(s) from the obstacle, as per the following calculation:
d=h x κ
where: κ=1/ tg(61°
-
φ) and φ
= latitude of installation point.
The table below represents the (κ) coefficients for some latitudes:
LATITUDE
36°
37°
38°
39°
40°
41°
42°
43°
44°
45°
46°
κ (m)
2,144 2,246 2,355 2,475 2,605 2,747 2,904 3,077 3,270 3,487 3,732
In order to calculate the minimum distance (d) of the system from the obstacle one must multiply the
height (h) of the obstacle by the appropriate (κ) coefficient.
For latitudes, other than the ones reported in the table above, the formula must be used in order to
calculate the (κ) coefficient.
•
The collectors must face towards the South when installed North of the equator and towards
the North when installed South of the equator. A deviation of up to 30º East or West is tolerated
with a minimum effect on the performance of the system.
Note:
a deviation towards the East will result in a greater output of the system until mid-day, while
a deviation towards the West will result in a greater performance of the system in the afternoon.
•
The optimal inclination depends on latitude of the installation point. In order to avoid fastidious
calculations, it is recommended as follows:
o
If the system is used mainly during summer months:
β=φ
- (10 to 15)
o
the system is used mainly during winter months:
β=φ
+ (10 to 15)
o
the system is used all year round:
β=φ
Where
β
is the collector inclination and
φ
the latitude of the installation point.
•
If the Solar System is installed in a location with a pitch lower than 13º or greater than 45º, additional
or different equipment may be necessary.
•
Always make sure that all the piping of the primary and secondary circuits, going to and coming from
the Solar Water Heater, are very well insulated, even in hot climate regions and treated for UV
radiation.
h
