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angle will enhance winter output.
13. Wind and snow load
When installing the collector please consider the issue of wind resistance and the
resulting stress on the attachment points. The standard frame is designed to
withstand wind speeds of up to 120km/h and 30cm snow accumulation without
damage. For areas with the possibility for high winds, additional reinforcement of
attachment points may be required and can easily be supplied by your local
installers.
14. Maintenance Requirements
14.1 Cleaning
Regular rain should keep the evacuated tubes clean, but if particularly dirty they
may be washed with a soft cloth and warm, soapy water or glass cleaning solution.
If the tubes are not easily and safely accessible, a high pressure water sprayer is
also an effective alternative.
14.2 Leaves
During autumn leaves may accumulate between or beneath the tubes. Please
remove these leaves regularly to ensure optimal performance and to prevent a fire
hazard. (The solar collector will not cause the ignition of flammable materials).
14.3 Broken Tube
If a tube is broken it should be replaced as soon as possible to maintain maximum
collector performance. The system will still operate normally even with a tube
broken. Any broken glass should be cleared away to prevent injury.