3.4 Before the installation the contractor shall
inspect the condition of the roof and noti-
fy the homeowner of any existing roof
damage or necessary repairs.
3.5 The homeowner and contractor shall con-
firm the location of all roof and ground
mounted components in advance of the
installation.
4) INSTALLATION REQUIREMENTS - SPECIFIC
4.1 Collector Orientation
The performance of solar water heating systems
in the Northern Hemisphere is optimized when
the collector is mounted facing True South.
Performance, however, suffers very little when
the collector is oriented no more than 45° East or
West of True South. The collector should be
unshaded by any permanent obstacle between
9:00 a.m. and 3:00 p.m. on any day of the year.
4.2 Collector Tilt
Optimal annual efficiency is achieved by tilting
the solar collector at an angle that equals your
latitude plus an additional 10°. This tilt angle
favors the lower winter sun when collector per-
formance is at it’s lowest and minimizes over-
heating during the hottest summer months.
The solar collectors in a two collector staggered
mount installation must be spaced far enough
apart to prevent winter shading. Figure 2 and
Table 1 show the correct spacing between collec-
tors to prevent shading on December 21, when
the sun is at its lowest angle.
4.3 Basic Mounting Procedures
The SunEarth solar collector in your SolaRay solar
system can be mounted in either a vertical or hor-
izontal orientation on the roof (See Figure1).
Although the collector is protected from freeze
conditions by the glycol HTF and does not nor-
P.4
fig.6
fig.4
fig.5
COMPOSITION SHINGLE MOUNTING
SHINGLE ROOF MOUNTING
REVERSE PITCH MOUNTING
