Vertex
Solar™ Pool & Spa Heating System
-- Installation & User Manual
© Copyright 2021 Optex Solar Pty Ltd. All rights strictly reserved.
Page 21
20
Roof Fixings
20.1
Application of the PVC Coated Stainless Steel Straps
When working with power or hand tools always follow the safety instructions.
•
Wear the recommended personal protective equipment, such as
gloves, safety
glasses, respiratory
and hearing projection
.
•
Make sure electrical cables are kept away from any water and from foreign objects
which pose
a potential cable severing or crushing hazard
.
•
When using glues, solvents or sealing agents make sure
you know and seek the
proper first aid
in case of an accident.
IMPORTANT:
DO NOT
over tighten
stainless steel strapping.
Strapping must
have sufficient play to allow for collector
contraction.
For the installation of two rows
between two aluminium channels top and
bottom strapping should be loose enough to
insert your
little finger
between the
strapping and the header pipe.
Why? Over
tightened straps can experience tension and
continual flexing of the metal due to the
thermal contraction of the collectors. This
can result in metal fatigue of roof fixings
over time.