Options and Accessories
BIRDSCREEN - Galvanized mesh is standard. Optional aluminum or stainless steel rigid wire are also available.
HOOD INSULATION - Hood insulation is dual- density to minimize condensation, reduce thermal transfer, and enhance sound absorption at high and low frequencies.
LIFTING LUGS - Four heavy gauge steel brackets are available to provide lifting points when raising the fan to the roof.
Tie Down Points - Four heavy gauge steel brackets are available to secure the fan in heavy wind applications. Cables and anchors by others.
COATINGS - All Greenheck coatings and resistance charts can be found in the performance coatings catalog. A wide variety of coatings and colors are available in two categories:
Decorative coatings – Sixteen standard colors are available.
Protective coatings – Five electrostatic applied powder coatings are available to protect against most environments.
DAMPERS - Designed to prevent outside air from entering back into the building when fan is off. Options include gravity and motorized dampers. Damper sizes are shown on each performance data page.
CURB SEAL - Rubber seal between fan and curb to ensure proper sealing when attached to a curb.
DISCONNECT SWITCHES - A wide selection of NEMA rated switches are
available for positive electrical shutoff and safety, including:
SPEED CONTROLLERS - Available for use with shaded pole and permanent split capacitor (PSC) open motors on models LD and LDP fans. They provide an economical means of system balancing with direct drive fans.
CURB EXTENSIONS - Extensions raise the fan discharge above the roof line and provide an accessible mounting location for dampers. Insect screen bases
constructed with
aremovable fine mesh are recommended for applications where insect
entry must be prevented. Curb
extensions are not available with LDP and LBP severe duty construction models.
ROOF CURBS - Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan, curb, and roof opening. All curbs are insulated with fiberglass. A
wide variety of roof curbs are available including flanged, pitched, and
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