Installation Guide
REC Installation Manual - REC Alpha Series - UL 6
Rev A . Ref: NE
MOUNTING METHODS: SLIDE IN SYSTEMS
REC Alpha panels may also be installed using ‘slide-in systems’, although such systems have not been tested to UL & UL in conjunction with
REC panels. Where such mounting systems are used, they must meet the same specifications including grip lengths, depths and spacing as specified for
clamping and the mounting system must be able to withstand the correct load pressures.
When installing solar panels using a slide-in system, the drainage holes found in the underside of the panel frame (see fig. ) must not be covered. For
any questions regarding installation on such systems, please contact REC directly.
MOUNTING METHODS: MOUNTING HOLES
REC Alpha panels can be mounted utilizing the four . x . in ( x . mm) elongated holes on the underside of the panel at a distance of . in
( mm) from the corner (fig. ) in conjunction with a device, e.g., screws, lockbolts or structural blind fasteners, with specifications suitable for the
installation (fig. ). Mounting in this way has been found to comply with UL & UL requirements for test loads of up to Pa ( Pa
design load) downwards pressure and Pa ( Pa design load) upwards pressure (*stated design loads apply a safety factor of . to the test load,
e.g., Pa / . = Pa).
Part Name Specification Material
Rail - T aluminum extrusion
Bolt /” x - /” ASTM F (stainless steel)
Nut /” x ASTM F (stainless steel)
Fig. : Mounting holes: REC Alpha Fig. : Mounting hole specifications: REC Alpha
Fig. : Mounting hole installation example: REC Alpha
GR
GR
GR
Scale: 1:1.57
11 mm ±0.2
[0.43 in ±0.8]
6.6 mm
±0.2
[0.26 in
±0.08
]
20.5 mm
±0.5
[0.78 in ±0.08]
22.5 mm [0.9 in]
455 mm [17.9 in]
When installing using the mounting holes, the frame and panel edge of each panel must be supported by two rails (figs. b & b) of aluminium or galvanized
steel suitable for the application and appropriate for the local environment. Observe the following procedures when using mounting holes:
• The mounting construction must be of a corrosion resistant material, e.g., aluminum or galvanized steel, and appropriate for the local environment,
• All four mounting holes in the frame must be used (fig. ),
• Additional electrical bonding to Ground is required for the support structure,
• Refer to the fixing device manufacturer’s installation instructions for preload or torque values.
The product warranty will be voided if additional holes are made in the frame. All fixing and fastening materials must be corrosion resistant.