Step 9: Screw Fan Down
• Screw the flashing down using the 6 hex head, rubber washer
screws (F-030) included.
• Place the screws about 2” (5cm) in from the edge in the 2
o’clock, 4 o’clock, 6 o’clock, 8 o’clock, 10 o’clock, and 12 o’clock
positions.
• 2 and 10 positions should be placed under the shingles.
Step 10: Finishing Touches
• Caulk under any shingles that are loose to seal them to the
flashing.
• Caulk along the slits and where the shingles meet the raised
part of the flashing.
• Caulk over the heads of any screws still visible for added
weather and corrosion protection.
• Tilt Panel (if equipped): Loosen the wingnuts & adjust the
solar panel for optioned performance. Retighten wing nuts to
lock in position.
NOTE: Although not expressly needed for installation, the following steps are highly recommended for
the effective and safe operation of the solar attic fan.
Step 11: Fine Tune Exhaust Venting
• Seal off any exhaust ventilation within about 15’ (5m) of the
solar attic fan to prevent the vent from re-breathing the hot
air exhausted by the fan. This is especially important for ridge
vents. Keep exhaust vents further away open to allow passive
ventilation when the fan stops operating at night.
Step 12: Fine Tune Intake Venting
• Your solar attic fan requires at least 1 sq.ft. of Net Free Area (NFA) for every 300CFM it is capable of. Install additional vents if needed to
match the capabilities of the fan. Insufficient intake venting will cause the fan to pull air from less desirable areas like conditioned air from
the home.
Step 13: Seal the Attic
• Inspect the attic for possible leak points of conditioned air from the house into the attic. This could be can lights, holes, cracks, vents, etc.
Seal up any potential leak points according to local building code. Any conditioned air pulled into the attic from the house will diminish the
money saved from installing the fan by increasing the workload of the HVAC system.
Living Area
Static Air: Unventilated
air due to re-breathing
Air vent
Solar attic vent
Ridge vent
9
10
11
Plumbing Stack Vent
13
Summary of Contents for SA-20WB-HPE
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