REC ALPHA PURE - Page 8

-
REC Installation Manual - Module REC Alpha - IEC61215/IEC61730
Ref: PM-IM-23
REC Installation Manual - Module REC Alpha - IEC61215/IEC61730
Ref: PM-IM-23
Rev: . US
REC Installation Manual - Module REC Alpha - IEC/IEC
Ref: PM-IM-
Rev: . US
-
MECHANICAL INSTALLATION
FIRE GUIDELINES
The REC solar panels covered by this manual have a Class C (referencing UL ) fire classification. REC Alpha Series panels are rated
Type  fire classification according to IEC -: (ref. ANSI/UL ). The fire performance rating of the panels is only valid when
mounted in the manner specified in this installation manual. The complete system fire class rating is to be achieved by the combination of
panel fire performance type and UL certified mounting structure for a non-BIPV panel. Please refer to mounting structure UL
listing for System Fire Classification. Any specific limitations on the inclination or accessories required to maintain a specific System Fire
Class Rating must be clearly specified in the mounting system manufacturer’s installation instructions and UL certification. Utilize
the following fire safety guidelines when installing REC panels:
• Check with all relevant local authorities for fire safety requirements for any building or structure on to which the panels
will be installed,
• The system design must ensure that it can be easily accessed in the event of a building fire,
• Check with relevant authorities for applicable regulations concerning setbacks or other placement restrictions that may
apply for roof-mounted arrays,
• The use of DC ground fault interrupters is recommended. This may also be required by local and national codes,
• All electrical appliances are a fire risk. The panel must be mounted over a fire retardant roof covering rated for the appli-
cation and a distance of at least . in ( mm) between the panel and the mounting surface, to allow the free circulation
of air beneath the panels at all times.
ORIENTATION
The optimal mounting position of a panel results in the sun’s rays falling perpendicular (i.e., at °) to the surface. To maximize system
output, panels should be installed at the optimum orientation and tilt angle. The specifics of this depend on location and can be calculated
by a qualified system designer. All panels in a string should, wherever possible, have the same orientation and tilt to ensure the system
does not underperform due to mismatched outputs. Dependent on local conditions, a lower angle of installation will potentially increase
the requirement for regular cleaning.
NOTE The IP rating of the junction box provides a level of protection that allows panels to be mounted in any orientation.