Vertex
Solar™ Pool & Spa Heating System
-- Installation & User Manual
© Copyright 2021 Optex Solar Pty Ltd. All rights strictly reserved.
Page 20
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Collector Array Plumbing Connections
BEFORE CUTTING - put aside two collectors per row with undamaged
end caps.
For all remaining collectors cut the single end cap off using a
sharp blade.
Check all collector pipe connections for raised edges or grooves on the
weld lines which could channel water and cause leaks. Shave any edges or
grooves flat with a blade being careful not to cut into the pipe.
Insert silicon joiners and moderately tighten the hose clamps using
with
an 8mm hex socket.
Do not glue in silicon joiners
. If there is a pin hole
leak, a small amount of silicon can be used to seal. Note:
You’ll need to re
-
tighten these with cool water running through the collectors at a later
stage, as HDPE has a high thermal contraction.
The
barb end
of inlet/outlet PVC adapter should be glued into the 40mm
silicon joiner with any neutral cure silicon. A flat spatula type surface
should be used to push silicon into the barbs indentations (as shown).
Why?
PVC barbs can soften at extreme roof stagnation temperatures and
contract sightly with clamp pressure. HDPE on the other hand will not
soften significantly at the maximum roof stagnation temperature of
~80˚C.
The
non-barb end
of inlet/outlet PVC adapter should be glued into 25mm
PVC piping.
Laceration hazard: Always cut away from your
body and ensure no parts of the body are in front
of the cutting blade. Plastic can be softened by
heating.
