http://www.sunflower
‐
solar.com/
Version
11.03
Subjec
tto c
hange 2011
SUNF
LOWER SOLAR
15
perform best in the range of 20-70 degrees. While adhering to this guideline, an angle of your la/-10° is
acceptable, and will not greatly reduce the solar heater output.
Angles out of this range can also be used, but a decrease of heat output will result. When the
angle is lower than
the latitude, it will increase summer output, while a higher angle will enhance winter output.
10.
Wind and snow accumulation
When installing the solar water heater, please consider the issue of wind resistance and the resultant stress on the
fixed points. The standard frame is designed to withstand wind speeds of up to
100km/h (62 mph) and 30cm (about
11.8 inches) of snow accumulation without damage. For areas with the possibility for high winds, additional
reinforcement of attachment points
(e.g. into roof rafters, or ground anchors)
may be required and can easily be
supplied by your local installers.
11.
Maintenance Requirements
11.1 Cleaning
Regularly raining could keep the heat pipe vacuum tube clean, but if it is particularly dirty then it may need to be
cleaned with a soft cloth and warm, soapy water or other glass cleaning solutions. If the tubes are not easily and
safely accessible, a water spray from a garden hose may also be used.
11.2 Leaves
During autumn, leaves may accumulate between or under the tubes. Please remove these leaves regularly to
ensure optimal performance and to prevent any fire hazard. (The solar water heater will not cause the ignition of
flammable materials).
11.3 Broken Tube
When the vacuum tube is broken, please close the valve immediately, please open the valve after replace the
vacuum tube, in order to save the water consumption. When replace the vacuum tubes, please
follow the
instructions in step 3.4.
