Specification Sheet

273
Construction/Specication Checklist
• Five year warranty.
• Low contour spun aluminum hood for attractive
appearance.
• All heavy-gauge aluminum construction.
• Weather resistance design for long life and maintenance-
free operation.
• Galvanized birdscreen is standard.
• Available in 13 sizes for a wide range of performance
capabilities.
• RCXII has one-piece curb cap with spun inlet for
maximum efciency.
• RCXII-SF is self ashing.
• Shipped completely assembled for ease in installation.
MODELS RCXII/RCXII-SF
RELIEF/INTAKE VENTILATORS
Model RCXII and RCXII-SF relief or intake
ventilators feature low contour spun aluminum
hoods for an attractive appearance. They are
designed to exhaust or supply air from or to
an enclosed area without the need for a power
operated fan. Available in two styles, these fans
range in sizes from 6-36. The RCXII (curb) has a
curb cap found on most roof ventilators and must
be mounted on a roof curb (sold separately). Model RCXII-SF (self-ashing) has an extra wide, at base that installed under
roof shingles and does not require a roof curb. Both styles come standard with a galvanized bird screen
Model RCXII and RCXII-SF rely on a difference in static pressure inside and outside the area to create an airow through the
ventilator from the area of higher pressure to the area of lower pressure. If the enclosed area is under a negative pressure,
air will ow into the enclosed area (intake). If the enclosed area has a positive pressure, air will ow from it to the outside
(relief).
These units can also operate as gravity ventilators, allowing air to ow from an enclosed area using the "Stack Effect." The
amount of air ow will depend on the temperature difference inside and outside the area and the height difference between
the ventilator and the outside air intake to the area.
Most of our line of RCXII and RCXII-SF fans is in-stock available for next day shipment!
Industry best 5 year fan housing warranty
Options/Accessories
Roof Curb: Prefabricated insulated heavy-gauge
galvanized steel welded construction, 12” high (other
heights are also available) with 1-1/2” wood nailer. Assures
perfect t of ventilator to roof curb. Options include burglar
bars, single and double pitch construction and hinged
curbs for easy duct access.
Motor Operated Damper: Motor operated aluminum
damper for positive closure against backdraft.
Automatic Damper: Automatic aluminum damper for
ease in installation and effective backdraft protection.
Special Coatings: Epoxy, Heresite and Eisenheiss
(synthetic resin) are available when special coatings are
required.
Insect/Weather Screen: Helps prevent insects, snow,
airborne mist or water droplets from entering on supply
applications exceeding 650 FPM velocity.
RCXII (sizes 24-36)
RCXII (sizes 6-20)
RCXII-SF
Integral Birdscreen
Available in Curb Mount or
Self-Flashing versions