Solfex IRC 2.1 System Installation, Commissioning And Maintenance Manual page 12

Installation instructions – Wooden frame collectors
In-roof installation
Place the aluminium profiles at the junctions between
the collectors and firmly fasten with 4,2x19mm screws.
Both profiles, for cover and support of the glass cover,
The aluminium profiles at the group's ends must be
taken off before the mounting of the integration cover.
Technical changes may be made without notice
page 12 - Installing the collectors
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The sensor tube and collector sensor should be inserted
in the last solar collector with the flow of hot solar transfer
fluid down to the solar cylinder / store, this will give
accurate temperature collector readings on the solar
controller.
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must be perfectly aligned
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Each profile must be fastened by 6 4,2x19mm screws.
NB: Do not over tight
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