Page 79CWT S5 Installation & Maintenance ManualIssue 5
Maintenance
7.8 Solar panel
cleaning
High efficiency of the solar panel requires that the panel is cleaned free from
foreign objects such as dust, sand, leaves, excrements from birds, snow, ice,
etc.
Regular checking of the solar panel is recommended.
When cleaning the panel, first remove dust and other lose particles by blowing or
using a soft brush. If necessary, clean the panel using a soft cloth moistened
with a mild detergent solution
Note:
When removing snow or ice, do not use metal objects because they can scratch
the panel surface which reduces the panel’s efficiency. A plastic ice scrape is
recommended.
8
Changing the CWT software and
firmware
See CWT Software Configuration Handbook on how to make changes in the
application software files.
The whole CWT application, or parts of it, can be changed centrally via
Weboffice or on site via the service menu.
In the latter case, changes can either be keyed in one at a time or the service
menu can be used to transfer new application files from a temporary storage
medium, a USB stick for instance, via the USB port on the CPU board.
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