6 / 17
Installation Manual for DualSun PV Modules
Do not repair glass or modules whose back film is damaged on your own.
3.5
Fire safety
Please consult local laws and regulations before installing modules and abide by requirements on
building fire protection. Fire rating of DualSun modules is Class C according to IEC 61730-2.
The roof shall be coated with a layer of fireproof materials of such rating for roofing installation and
make sure that the back plate and the mounting surface are fully ventilated.
Difference of roofing structures and installation modes will affect fireproof performance of buildings.
Improper installation may lead to fire disasters.
To guarantee roof fire rating, the module frame shall be at least 10cm from the roof surface.
Adopt proper module accessories such as fuse, circuit breaker and grounding connector
according to local regulations.
The fire rating of this module is valid only when mounted in the manner specified in the
mechanical mounting instructions.
Please do not use modules if there are exposed inflammable gases nearby.
If the module are installed on the roof, Please refer to the IEC61730-1 Clause 12.4
a
）
Fire resistant rating of roof covering
≥ Class C
；
b
）
Module installation Angle
≤22.5°
4
Installation conditions
4.1
Installation site and working environments
The modules can only be used on earth but not in outer space.
Do not focalize sunlight with mirrors or magnifying glass artificially onto modules.
DualSun modules shall be installed on proper buildings or other appropriate places (such as
ground, garage, building outer wall, roof, PV tracking system) but shall not be installed on any mobile
vehicles.
Do not install modules at such places as that are possible to be submersed.
The maximum altitude the PV module is designed for
≤
2000m
；
DualSun suggests that modules be installed in the working environment with the temperature of
-20
℃
to 50
℃
which is the monthly average highest and lowest temperature of the installation places.
The extreme working environment temperature for modules is -40
℃
to 85
℃
.
Make sure that installed modules do not suffer wind or snow pressure that exceeds the
permissible maximum load.
Modules shall be installed in places free from shades throughout the year. Make sure there are
no light-blocking obstacles in the installation places.
Carry out lightning protection for modules installed in places with frequent lightning and thunder.
