Rheem RS80-42BP - Manual (Page 21)

21
Collector Extrusion & Strap Installation Detail - Tile Roof
CAUTION: Straps must
be attached directly onto the
rafters or trussed not less
than 39” apart and not more
than 63" apart.
!
CAUTION: The
Extrusion must slope 1/2”
per collector from horizontal
(hot pipe side to be higher)
for the system to work
correctly.
!
Collector Extrusion and Strap Installation Detail - Metal Roof
CAUTION: Ensure the
weatherproof seal is
restored.
!
The frame is attached to two wood or
Unistrut runners and installed over rafters or
trusses, bearing wall or reinforced roof area.
Fixed pitch frame assemblies are used in
reverse and side pitch installations, whereas
variable pitch frame assemblies are used for
shallow pitch or flat roof installations.
1. Remove roofing if necessary where runners
will be installed to provide solid base for
the frame.
2. Install two off 2" x 4" x 8'4” redwood,
treated-wood or Unistrut runners;
• Mark supporting rafter or truss locations,
• Place tank-end of runners over load-bearing
wall,
• Cut runners to straddle the two closest
rafters diagonally,
• Angle runners under support points to
permit rainwater drainage.
Frame Installation
CAUTION: For all
frame installations, the
tank-end support points
must be located over the
load-bearing wall or a
reinforced roof area.
!
CAUTION: Ensure
the weatherproof seal is
restored.
!