General Installation Manual
© Apr 2012, SANYO Electric Co., Ltd. All Rights Reserved
2
required to help provide proper
installation support.
•
Both roof construction and module
installation design have an effect on
the fire resistance of a building.
Improper installation may contribute to
fire hazards. Additional devices such
as ground faults, fuses, and
disconnects may be required.
•
Do not use modules of different
specifications in the same series string.
•
Do not use modules of different
specifications in parallel.
•
Check and follow all safety precautions
of other system components used.
UL Listing Information
To satisfy UL standard 1703 requirements,
when installing modules, be sure to:
•
Use only stranded or solid copper
single–conductor type UF cable or
USE cable, rated sunlight resistant, for
modules and interconnect wiring that is
exposed to weather.
•
Observe the requirements described in
sections labeled INSTALLTION and
SPECIFICATIONS.
INSTALLATION
General
Please read this guide completely before
installation or use of the modules. This
section contains electrical and mechanical
specifications needed before using your
Panasonic
PV modules.
•
Modules should be firmly fixed in place
in a manner suitable to withstand all
expected loads, including wind and
snow loads.
•
Metals used in locations that are
exposed to moisture shall not be
employed alone or in combinations that
could result in deterioration.
•
Install modules where they are not
shaded by obstacles like buildings and
trees. Especially pay attention to avoid
partially shading modules by objects
during the daytime.
•
Modules are water resistant, but not
waterproof. Moisture may leak through
where the frame and glass connect.
•
Please contact your SANYO
Authorized Representative with
questions regarding mounting profiles
for modules if needed.
Notes on Installation
•
Clearance between the roof surface
and module frame is
required
to allow
cooling air to circulate under the back
side of the module. This also allows
any condensation or moisture to
dissipate. Install modules so that air
can circulate between the roof and the
module as freely as possible.
•
Leave 4 inches of clearance between
the roof and the module frame.
•
SANYO recommends (but does not
require) the installation method and
mounting profile shown in Figure 1.
•
A module should be attached on a
mount or support structure rail by metal
fittings (Size: 27x27x14mm, Material;
SUS304 or NSSC180). The metal
fitting must meet the following
specifications. Size: not less than 1.06’’
(27mm) width
Thickness: not less than 0.12’’ (3 mm)
Material: Stainless steel
•
Bolting torque must be more than 8N.m.
The following information is provided to
help customers obtain good performance
without exceeding a module’s operating
conditions or warranty parameters.
•
Do not artificially concentrate sunlight
on a module by mirror, Fresnel lens,
magnification, etc.
•
The surface upon which modules are
installed is recommended to be flat, to
prevent artificially concentrated
sunlight.
•
Additional output power from the back
face of the panel can be increased or
decreased depending upon angles of
installation, height from surfaces,
shade from structures or rails, and the
albedo of surrounding surfaces.
•
Please see Figure 6 for the effect of
angles of installation on output power.
•
The height of a module above a
surface affects the power potential of
the module’s back face.
•
When possible, maximize the height of
modules above surfaces in order to
maximize ambient light beneath the
modules.
•
Always position support structures and
rails along the edges of a module, or
between modules, and do not allow
rails to shade a module’s back surface.
•
Light colored surfaces reflect more light
than dark colored surfaces. Installing
HIT Double modules over light colored
surfaces will increase the output power
potential from the back side.
Operating Conditions
SANYO requires that modules be operated
14
27
27
φ
8
Solar Module
Installation (reference)
This referential figure is for HIT Double
(
VBHBxxxDA03
) modules
Metal fitting
(
4
places
)
Metal fitting
Spring washer
Flat washer
Module
M6 Nut
M6 Bolt/setscrew
Between Modules
Mounting Structure Rail
End of Module
Mounting Structure Rail
Mounting
Structure
Rail
Metal fitting
Solar Module
Mounting
Structure Rail
Figure 1. Installation
