THERMOSIPHONIC SOLAR WATER HEATERS / TECHNICAL DOCUMENTATION / PAGE 7
IΙI) POSITIONING OF THE SYSTEM
The installation area of the solar water heater must fulfill the following requirements:
1.1 The solar water heater
must face the SOUTH (or NORTH in case the installation takes place in the
South hemisphere),
and it is strongly recommended to use a compass to ensure this. Deviations of up
to 10-15
does not affect substantially the system’s efficiency, but larger deviations may seriously
affect the performance.
1.2 In countries situated in latitude of 40
, the collectors must be installed at an angle of 45
against
the horizontal level. The collectors must be generally placed at an angle of 5
over the latitude of the
installation area. Any decrease in this angle entails considerable decrease of the solar heater’s annual
performance.
1.3 In no case are the solar heaters to be placed in the shade, especially during winter time, when the
sun is lower in the sky. The minimum distance between the solar heater and any obstacle that causes
shadow
should
be
no
less
than
twice
the
height
of
the
obstacle.
