REC ALPHA PURE - Page 15

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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
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MODULE LEVEL POWER ELECTRONICS
This section is applicable to all REC products referred to in this installation manual.
Module Level Power Electronics (MLPE) is the name given to the range of panel-level components that can be installed in PV system cir-
cuits installed on or in buildings to reduce shock hazard for emergency responders. MLPE devices can be supplied pre-installed by panel
manufacturers or as a ‘retro-fit’ system made by third-party manufacturers.
MLPE devices may be used on REC solar panels where desirable or mandatory (note that the certification testing of solar panels does
not include testing with MLPE devices). When installing an MLPE device directly onto the frame structure of an REC solar panel, follow
the instructions provided by the device manufacturer and the instructions specific for REC solar panels given below. Failure to follow the
manufacturer and the REC instructions may invalidate the warranty.
INSTALLATION
Installation
• MLPE devices must be suitable for the location where the solar panels installed. Observe any limitations set by the MLPE
manufacturer. (e.g., minimum mounting gap between MLPE and rooftop).
• When attaching an MLPE device directly to the solar panel frame, follow the MLPE manufacturer’s instructions to ensure
optimum mounting of the device and prevent any slippage during operation.
• When installing an MLPE device to the panel frame, ensure to leave a gap of minimum  mm between the MLPE device and
any further part of the module architecture to ensure there is sufficient airflow around the device, e.g., between the MLPE
device and junction box and/or support bar.
• Wherever possible, the installation of the MLPE device should not cover the product label on the rear of the panel.
• MLPE devices may also be attached to the mounting construction. In such cases, refer to the instructions provided by the
manufacturer.
CAUTION To avoid damage to the panel and to allow for thermal expansion, there must be a minimum gap of . mm between
the MLPE device and the panel backsheet.
The mounting holes in the panel frame must not be used for the installation of MLPE devices.
The drilling of extra holes in the frame is not permied and will invalidate the panel warranty.
CONNECTION
• First ensure the installation of the MLPE device is secure and safe.
• Following the device manufacturer’s instructions to connect the cables from the MLPE device to the solar panel correctly
(usually positive to positive [+ to +] and negative to negative [- to -]).
• Connection to the next panel in the array should be done from the ‘free’ cables.
SAFETY
• Immediately disconnect the device if there is a problem during installation.