Mechanical Mounting - Q CELLS Q.PRO Installation And Operation Manual

5.2 MECHANICAL ASSEMBLY
MODULE POSITIONING
WIND / SNOW LOAD
MOUNTING FRAME
MODULE FASTENING
INSTALLATION AND OPERATION MANUAL CRYSTALLINE SOLAR MODULES Q-CELLS SE - AUSTRALIA
CAUTION! Incorrect orientation of the module presents a fire hazard!
• The modules may be installed in landscape or portrait format.
• Install the module in such a way that the junction box is positioned in the upper area of the
module and the wires hang downwards (Figure 2).
• Ensure that the drainage openings of the frame are left open following installation to allow
water runoff. This prevents frost damage.
• Install the modules with a minimum tilt angle of 3°.
• For installations with a tilt angle < 20°, regularly check for dirt built up (soiling, bird drop-
pings, etc.). Rain should help to remove soiled areas, though regular cleaning is recom-
mended for all installations (see Chapter 7 "Cleaning and maintenance").
• Install the module in such a way that rainwater and snowmelt can run off freely to avoid
standing water or puddling.
• The optimal tilt angle of the module depends on the respective latitude. We recommend a
photovoltaics simulation tool to ensure the optimal orientation.
Framed modules are suitable for use with wind and snow loads up to 5400 Pa.
Install the module to a mounting structure:
• that corresponds to the necessary statics and the local snow and wind loads.
• that is correctly fastened in the ground, on the roof or on the facade.
• that can transfer forces on the module to the assembly substructure.
• that ensures that no mechanical stresses (e.g. caused by vibrations, twisting or expansion)
are generated on the module.
• that ensures sufficient back ventilation of the module.
• that ensures long term stability.
• that will not give rise to galvanic corrosion in case of direct metal contact (i.e. grounding
lead, screws, washers, etc.)
• that allows for strain-free expansion and contraction due to natural ambient temperature
variations.
Clamps and rail system must be constructed as a coordinated unit.
To ensure a long-term stability of the solar modules:
• Install the module and clamps according to the mounting variants. Adhere to the defined
clamp areas in Figure 2 (Chapter 5.1).
• Position the module planar.
• Install the modules with a minumum distance of 10 mm to each other.
• Use all fastening points and avoid direct contact between the glass and mounting material.
• Fasten the module to the sides using 4 clamps each and with a recommended torque of
18 Nm. In this way you avoid bends, mechanical stresses and twisting.
GENERAL REQUIREMENTS FOR THE CLAMP SYSTEM:
Customary clamps that satisfy the following requirements
may be used:
• Clamp width: ≥ 60 mm
• Clamp height corresponding to 50 mm frame height
• Clamp depth: 7–12 mm
• Clamp area surface (clamp depth x clamp width): ≥ 600 mm²
• Statics in accordance with the requirements of the location
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