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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
-
PANEL INSTALLATION
REC solar panels are designed for capturing solar radiation and can be installed where they conform to all local structural regulations. If
installing REC solar panels in overhead or vertical constructions, the installer must ensure that all local building codes and regulations spe-
cific to such installations are correctly followed. There are different options for securing REC solar panels depending on the design of the
array. Mounting hardware is not supplied by REC. Ensure the mounting structure can withstand anticipated wind and snow loads. Follow the
mounting hardware manufacturer’s instructions and recommendations at all times.
NOTE
Common hardware items such as nuts, bolts, star washers, lock washers and the like have not been evaluated
for electrical conductivity or for use as grounding devices and should be used only for maintaining mechanical
connections and holding electrical grounding devices in the proper position forelectrical conductivity. Such devices,
where supplied with the panel and evaluated through the requirements in IEC & UL , may be used
for grounding connections in accordance with the instructions provided with the panel.
NOTE
Panels must be installed so that the cells are not shaded as this will reduce electrical output. If partial shading is
inevitable at certain times of the day or year, it must be kept to an absolute minimum. Remove any labels or stickers
that may be on the front of the panels and ensure no residue is le on the glass.
CAUTION There must be a minimum clearance gap of . in ( mm) between the uppermost part of the installation surface
(e.g., rooop) and the lowest part of the panel (i.e., underside of panel frame) to avoid any damage to the panel and
to ensure sufficient airflow for cooling, helping to improve performance. The surface below the panels must be kept
clear of any objects that may cause damage to the panel.
SECURING OF PANELS
A typical installation of solar panels will be carried out with suitable rails and clamps. Other types of panel support, e.g., plates, must meet
the same specifications. Such installations have been found to be in compliance with IEC & IEC requirements for the maximum
test loads of + Pa downwards pressure and - Pa upwards pressure (+ Pa/- Pa design loads)
Site-specific factors such as high wind or snow levels must be taken into consideration to ensure this limit is not exceeded.
When installing on mounting rails, ensure they run underneath the panel and provide support to the frame. The positioning of the rail must
ensure that the minimum clamp grip length (Fig. ) and the central point of the fixation, e.g., the bolt, is fully within the required clamping
zone as indicated on the following pages.
REC modules must be secured with a torque as shown in the table below (Fig. ). Clamp installation must be carried out according to the
manufacturer’s instructions, including specific hardware and torque requirements. Ensure the clamps used are suitable for the planned
installation and expected system design loads.
• The grip area must not extend onto the panel glass and/or cause cell shading,
• Avoid the application of excessive pressure to prevent frame deformation,
• The panel must be secured, e.g., clamped, at least once in each of the four marked zones shown below (Fig. ).
Min. Grip Depth
. - . in / mm - mm
. in / mm
- Nm
- lbf/in
Min. Grip Depth
Fig. Panel Quarter Divisions
Fig. Clamp Specifications
Specifications
Min. Grip Depth
Min. Grip Depth
Torque
Length
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