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Solar Pool Heating System -- Installation & User Manual
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Page 42
23.2
Mounting Procedure for Arrays 15 or Less Panels per Row
You MUST
“Season”
the panels by placing them in the hot sun for half a day on one side and half a day on the other
side to minimize any age contraction issues later. Then follow this mounting procedure:
Compact panels pipe to pipe, tighten clamps and apply fixing straps to cool panels only
(and/or with cool water running at low pressures, see Pressure Optimization section below),
and never hot panels.
Why?
Applying straps/clamps to hot panels can cause issues for large
arrays when the collector array contracts significantly in the cool of the night and over time.
For arrays containing 11-15 panels in a single row we strongly recommend aluminium
channels top and bottom for each row.
Why?
Panels strapped top and bottom to an
aluminium railing will have smaller side to side thermal movements.
For these arrays we recommend you locate the vacuum release off the roof and run the
system at a slight negative pressure.
Why?
A slight negative pressure will help reduce side to
side thermal movement, help compact panels during installation and guard against pool drain
events caused by a joiner pulling out.
