28
REC Installation Manual - REC Solar Panels - IEC
61215
/
61730
Rev L
-
09
.
21
Ref: PM
-
IM
-20
ANNEX
2
: INSTALLATIONS USING 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 circuits
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 on 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
i) Installation
• MLPE
devices
are suitable for use wherever solar panels are suitable for installation. Observe any limitations set by the MLPE manufacturer.
(e.g., minimum mounting gap between MLPE and roo
ft
op).
• When a
tt
aching an MLPE
device
to a solar panel, it must be secured to the panel frame. Follow MLPE manufacturer instructions to ensure
optimum mounting of MLPE device and prevent any slippage during operation.
• MLPE
devices
may also be a
tt
ached to the mounting construction. In such cases, refer to the instructions provided by the manufacturer.
• Wherever possible, the installation of the MLPE device should not cover the product label on the rear of the panel.
• MLPE
devices
may only be installed on REC solar panels in the areas shown in the diagram below (fig.
26
&
27
):
Fig.
26
: REC
60
-cell panels MLPE device installation zones
Installation of MLPE device in the green zone is permi
tt
ed.
Installation of MLPE device in the red zone is not permi
tt
ed.
CAUTION
• To avoid damage to the panel and to allow for thermal expansion, there must be a minimum gap of
0
.
1
in (
2
.
5
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
tt
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.
Fig.
27
: REC
72
-cell panels MLPE device installation zones
0 - 480 mm [0 - 18.9 in]
0 - 480 mm [0 - 18.9 in
]
0 - 1016 mm [0 - 40 in]
0 - 480 mm [0 - 18.9 in
]
0 - 480 mm [0 - 18.9 in
]
0 - 1016mm [0 - 40 in]
GR
GR
GR
0 - 650 mm [0 - 25.6 in
]
0 - 650 mm [0 - 25.6 in
]
0 - 1001 mm [0 - 39.4 in]
0 - 650 mm [0 - 25.6 in
]
0 - 650 mm [0 - 25.6 in
]
0 - 1001 mm [0 - 39.4 in]
GR
GR
GR
