background image

x

x

grip length
min 1.75 in

grip length
min 1.75 in

grip depth min 0.2 in

grip depth 0.2 in

Fig. 3:  Clamp specifications

walls exposed to load 

min 0.156 in

Fig. 1:  Panel mounting options:

(b) rails parallel to the short side

(a) rails parallel to the long side

Rail positioning

Rail positioning

Rail positioning

Rail positioning

REC TwinPeak Series Installation Manual - UL 1703
Rev B - 03.15 

Ref: NE-06-08-B

6

MoUNTiNg THE PaNELS

REC TwinPeak solar panels are designed for capturing solar radiation and are not suitable for installation as overhead or vertical glazing.  The panels 

are considered to be in compliance with UL 1703, only when the panel is mounted according to the the mounting instructions specified below.  The 

REC junction box on the back of the panel is protected to iP67 and hence panels can be mounted in any orientation.

panEl InstallatIon
i)  Rail specifications

REC TwinPeak panels are typically installed on a rail-based mounting system.  There are different methods of installing an REC TwinPeak panel, each 

decribed below, depending on the design load of the array.  The rails can run under the frame or parallel to the frame, directly under the clamping zones 

(fig 1a & 1b).  Ensure the mounting structure is able to withstand anticipated wind and snow loads.

walls for mechanical 

connectors

walls exposed to 

buckling load

Fig. 2:  Rail specification

C channel rail

H channel rail

The clamps should be fastened to C or H channel rails (fig. 2).

• 

Thickness of walls for mechanical connections: min. 0.156 in (4.0 mm)

• 

Thickness of walls exposed to buckling load: min. 0.08 in (2.0 mm)

• 

Moment of inertia for profile area about x-x: min array mounting diagram 0.4 in

4

 (19.2 cm

4

)

The overlap between support rail and the outer edge of the panel frame must be a minimum of 1/64 in (6 mm).

ii)  Clamp specification

REC TwinPeak panels have been evaluated by UL for mounting using C-channel-rails in combination with end and mid clamps, 5/16 in (8 mm) aSTM 

F593C stainless steel screw and rail nuts.  alternatively clamps with the below ratings and dimensions can be used to secure the panel to the 

mounting structure (fig. 3):

• 

Minimum yield strength of 2089 ton/ft² (200 Mpa)

• 

Minimum tensile strength of 2610 ton/ft² (250 Mpa), e.g. 6005 T5 alloy. 

• 

Minimum grip length of 1.75 in (44.45 mm)

• 

Minimum grip depth of 0.29 in (5 mm)

• 

Minimum thickness of load carrying walls of 0.156 in (4 mm)

• 

Screw connection – 5/16 in (8 mm) stainless steel bolt, 5/16 in split washer (8 mm), nut

Fig. 4:  Panels secured at four points.

Each panel must be securely fixed to the mounting structure at a minimum of four points (fig.4).

Ensure a minimum distance of 4 in (100 mm) between the uppermost part of the roof and the lowest part of the panel to ensure sufficient 

airflow beneath the panels, aiding cooling and boosting performance.

Содержание REC265 Series

Страница 1: ...Installation manual rec TwinPeak SERIEs FortheinstallationofRECTwinPeakSeriessolarpanels certifiedaccordingtoUL1703 ...

Страница 2: ...on 4 ii Specific hazards of DC electricity 4 iv Safetyrequirements 4 MECHANICAL INSTALLATION 5 FIRE GUIDELINES 5 ORIENTATION 5 ENVIRONMENTAL FACTORS 5 Panel HANDLING 5 MOUNTING the panels 6 Panel Installation 6 i Rail specifications 6 ii Clamp Specification 6 iii Mounting holes 7 iv Slide in Systems 7 v Drainage holes 7 vi Long side mounting using clamps 8 vii Shortside mounting using clamps 8 vii...

Страница 3: ...hich highlight important information or notes Indicates potential for damage to the array or property or personal safety Indicates important notes on best practice to help with the installation or to avoid potential damage to the panels array or property For further information on installation procedures please call your distributor or contact your local REC Solar office Details available at www r...

Страница 4: ...outputs In installations not under the requirements of the NEC the values of ISC andVOC marked on the panels must be multiplied by a factor of 1 25 when determining component voltage ratings conductor ampacities overcurrent device ratings and size of controls connected to the PVoutput SAFETY Measures Wiring installation shall be in accordance with the NEC or CSA C22 1 Safety Standard for Electrica...

Страница 5: ...it can be easily accessed in the event of a building fire Check with local 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 should therefore be mounted over a...

Страница 6: ...ling load Fig 2 Rail specification C channel rail H channel rail The clamps should be fastened to C or H channel rails fig 2 Thickness of walls for mechanical connections min 0 156 in 4 0 mm Thickness of walls exposed to buckling load min 0 08 in 2 0 mm Moment of Inertia for profile area about X X min array mounting diagram 0 4 in4 19 2 cm4 The overlap between support rail and the outer edge of th...

Страница 7: ...g clamps Mounting utilizing clamps on the two short sides of the panel have been found to be in compliance with UL 1703 requirements for a maximum design load of 33 4 lbs ft 1600 Pa fig 9 Fix the panels so that the lower short side of the frame is supported by the mounting structure to reduce risk of damages due to sliding snow load Clamps must be secured between a distance of 4 9 and 9 8 inches 1...

Страница 8: ...ls are preferred however galvanized or hot dipped zinc plated fasteners are equally suitable Grounding cable Star washer Grounding lug dimensions and wire fastening torque for GBL 4DBT Fig 7 Drainage holes v Drainage holes There are eight drainage holes 0 47 x 0 30 in 12 x 7 5 mm in the panels frame each spaced 2 2 in 55 mm from the corner of the panel frame fig 5 This allows water caused by rain ...

Страница 9: ...cal integrity of the cables is intact Bonding points to ground are tight secure and free from corrosion which could break the continuity between the panels and ground Recycling REC has made every effort to ensure panel packaging is kept to a minimum The paper and cardboard packaging can be recycled and the protective wrapping and panel separating blocks are also recyclable in many areas Please rec...

Страница 10: ...nder standard test conditions STC Values at STC airmass AM 1 5 irradiance 1000 W m cell temperature 25 C 77 F At low irradiance of 200 W m AM 1 5 and cell temperature 25 C at least 94 of the STC panel efficiency will be achieved followed by TP TP BLK TP ECO Fig 12 Panel dimensions in Dimensions 65 55 x 39 02 x 1 5 in Area 17 76 ft Weight 39 6 lbs Operational Temperature 40 185 F 40 85 C Maximum Sy...

Страница 11: ...10 A First release 12 2014 A 2 Update to Electrical data STC 275 Wp IMPP 12 2014 A 3 Update to Electrical data STC addition of 260 280 Wp revision of low light behavior data in Electrical Data 03 2015 B Updated to include information on panel variants ...

Страница 12: ...RECSolarPte Ltd 20TuasSouthAvenue14 Singapore637312 Singapore Tel 6564959228 Mail post recgroup com www recgroup com ...

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