Installation Guide

2635 W. 7
th
Place, Eugene, Oregon 97402, USA 10 Valid from March 2017
www.grapesolar.com
Tel: [phone] (toll free), 1-541-349-9000, Fax: [phone]
PHOTOVOLTAIC MODULES SAFETY
AND INST
ALLATION MANUAL Rev.
O
VALID IN NORTH AMERICA ONLY
5.8 At least a 4 inch clearance between the module frames and structure, or wall, or ground is
required to prevent wiring damage and allows air to circulate behind the module.
5.9 PV modules can be mounted to the structure by the following methods:
5.9.1 Mounting Holes: Secure the module to the structure using the mounting holes. There are 4
mounting holes on module frame for mounting. Attach
¼ -20 x 0.75” stainless steel screw via each mounting hole with ¼” stainless steel flat
washer, and secure from behind with another stainless steel flat washer, local washer and
nut. Torque the bolts to 6.3ft lbs (8.5Nm).
5.9.2 Pressure Clamps or Clips: Mount the module with the clamps or clips on the module frame.
Installers should ensure the clamps are of sufficient strength to allow for the maximum
design pressure of the module.
5.10 It is recommended that modules be securely fastened on the long side of the frames, but
mounting the module only on the short side is allowed. The maximum mechanical load applied
on the module must not exceed 30 lbs/ft
2
(1600 Pascal).
IV. MAINTENANCE
1. No routine maintenance is required.
2. Grape Solar recommends periodic inspection of the PV system to ensure tight electrical and
mechanical connections and signs of corrosion.
3. Periodic cleaning of modules is not required, but is recommended, as periodic cleaning can result in
better performance of the PV system, especially in regions with low levels of annual precipitation.
4. Do not remove the dirt by scraping or rubbing away from the module front surface when dry as this
may cause micro-scratches on the glass and lead to module performance degrading.