Rheem RS80-42BP - Manual (Page 12)

Installing the water heater.
Roof Survey
Record the following on the
checklist:
• The type of roofing material (tile,
shingle, tar & gravel, metal, etc.).
• The condition of the roof. Note
any repair requirements
needed prior to installation.
• Draw diagram (top view) as
shown below, of installation area.
Mark location of the system and
stub-out.
• Using the table below, select the
appropriate supporting structure
for your solar system.
NOTICE: A roof in poor
condition may need
replacement before the
system is installed.
Roof Type Installation Type Supporting Structures
All types except sturdy tiles and
metal
With pitch (standard) 4 runners and Collector Extrusion
Sturdy tiles or metal roof with
No obstruction of water flow
With pitch (metal / sturdy tile) Collector Extrusion only
All types Side pitch 2 runners + Frame
All types Reverse pitch 2 runners + Frame
All types Flat / shallow pitch 2 runners + Frame
Roof Support Requirements
The system weighs up to 1089 lbs (80 Gallon
System) when installed and filled. It may not be
necessary to provide additional support but you must
inspect the roof support system to determine if
additional bracing is needed.
Record the following on the checklist.
CAUTION: If the following modifications do
not apply to the installation site, an engineer must
specify support modifications.
Conventional Roof Modifications;
• Locate the load bearing wall beneath installation
site (refer to building plan if available) and
indicate on the roof-site plan. If a load-bearing
wall is not available, note this on the checklist.
• Review Figure at the top of the following page
and select correct supports.
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