Sungrabber IN-GROUND Installation And Operation Manual Download Page 7

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INSTALLING YOUR SUNGRABBER

(CONTINUED)

REQUIREMENTS FOR ROOF TYPES OTHER THAN SHINGLE ROOF (CONTINUED)

Cedar Shake Roofs:

If the cedar shakes are installed on top of a plywood surface, use a galvanized metal flashing (approximately 4”

x 4”) under each shake where the mounting screw will penetrate. Center the flashing under the penetration location before installing
the screw. Drill a pilot hole and apply a generous amount of sealant into the hole. If the cedar shakes are installed on fir strips,
contact your dealer for alternate mounting instructions.

Flat Built-up Gravel Roofs:

Use caution when installing on this type of roof. The roof must be in good condition and be completely

dry. If you are uncertain of the condition of the roof, consult a professional. At each mounting location remove the loose gravel in an
area approximately 6“ x 6”. At the exact location of the penetration, remove the gravel which is embedded into the tar surface of the
roof using a chisel or the back of a claw hammer. Scrap back the gravel until you have a smooth tar surface approximately 2“ x 2”.
Apply a generous amount of sealant under the mounting hardware and over the head of the screw once installed. Using a 2” to 2½”
fender washer under the mounting hardware will provide additional mounting surface. The screw must be tightened to hold the
hardware securely to roof surface; however, use extreme caution not to over tighten and strip the screw in the plywood. An alternate
method is to have a roofing contractor install roof curbs where the mounting hardware will be installed.

Open Beam Roofs:

Any ceiling with exposed beams must be checked to avoid the screw ends from penetrating into the interior

space. Call for alternate installation method.

Metal Roofs:

If the metal roof is installed on a plywood surface, you may proceed using the normal installation method. If the metal

roof is installed on fir strips, the mounting hardware must penetrate into the fir strip to insure a good seal and to avoid bending the
metal surface. If screw heads protrude above the surface of the roof, a substrate must be used to prevent damage to the panels.

Rubber or Asphalt Modified

: This type of roof is typically installed flat. Using a 2” to 2½” fender washer under the mounting

hardware will provide additional mounting surface. Be sure to use a generous amount of sealant under the washer, between the
washer and the mounting hardware, and on top of the mounting screw.

Roof or Ground Mounted Rack Systems

: Rack systems can be made from pressure treated wood or aluminum. For roof mounted

racks aluminum is preferred for its additional strength and longevity. See your dealer for rack mounting options.

CONNECTING TO POOL EQUIPMENT

Install check valve and by-pass ball valve as shown.
The check valve prevents the water in the panels from
flowing backwards through filter and back-flushing into
the pool.  The by-pass ball valve allows you to
manually activate and deactivate your solar system
daily.  When turning the system on, regulate flow using
the by-pass ball valve.  The solar system works best at
flow rates ranging from 1 to 4 gpm per panel.  To
regulate flow, simply document the pressure on the
pressure gauge of the filter with the by-pass valve open
and the pool pump running.  Then throttle the by-pass
ball valve closed until the pressure on the filter gauge
has increased (for a maximum 12 panel system) more
than what you originally documented. Give the system
about 10 minutes to normalize, and then check the
pressure gauge again. Additional fine-tuning may be
required.  Once set, mark the location of the by-pass
ball valve handle so that you can simply and accurately
activate and deactivate the solar system daily.