Specification Sheet

FF & FFC ACCESSORY NOTES

ROOF CAPS

MODEL 437 High capacity design up to 1200 CFM, Birdscreen, steel housing, black epoxy nish.

MODEL 634 For 3 1/4 X 10" or up to 8" round duct, built in backdraft damper and birdscreen, baked enamel.

MODEL 636 Sloped roof cap. For 3" or 4" round duct, backdraft damper and birdscreen. Steel, black epoxy.

WALL CAPS

MODEL 441 Steel with aluminum louvers. For 10" round duct.

MODEL 613 Aluminum natural nish. Built in backdraft damper and birdscreen. For 12" round duct.

MODEL 641 Same as 613, except for 6" round duct.

MODEL 642 Aluminum natural nish, built in backdraft damper. For 3" or 4" round duct. 4" to 3" transition included.

MODEL 643 Same as 613, except for 8" round duct.

IN-LINE ADAPTORS

MODEL 961L Galvanized steel, 6" round duct intake.

MODEL 981L Galvanized steel, 8" round duct intake.

MODEL 982L Galvanized steel, 4 1/2 X 12" duct intake.

MODEL 983L Galvanized steel, 8 X 12" duct intake.

RADIATION DAMPERS

MODEL RD80AF UL rated, 1,2, and 3 hour rated. Floor-ceiling and roof-ceiling constructions, galvanized steel. High

temperature, non-asbestos, reinforced ber thermal fabric. 165

fusible link. Stainless steel closure

springs 10-1/8” x 9-3/8”.

MODEL RD1 UL rated, 4 hour ceiling radiation dampers, Galvanized steel. High temperature, non-asbestos, reinforced

ber thermal fabric. 165

fusible link. Stainless steel negator-type closure spring 12 1/4 X 12 1/4".

MODEL RD2 Same as RD 1, except 21-1/2 X 21-1/4".

MODEL RD3 Same as RD 1, except 22 X 18".

METAL GRILL KIT

MODEL MG1, White enamel painted steel. Mounting screws included.

G102 & G103

DUCT TRANSITION

MODEL 423 Galvanized steel. Allows for easy transition to round ducting. 4-1/2 X 18-1/2" to 10" round.

MODEL T81212 Same as Model 423, except 8 x 12" to 12" round.

DAMPER KITS

MODEL D100 & D101 Twin damper aps and mounting hardware. Foam cushion and magnetic catch assures quiet backdraft

prevention.

VIBRATION DAMPENING HANGERS (For Model FFC)

MODEL V102 Set of four - includes washers and neoprene grommets. For 3/16"-32 threaded rod (by others).

MODEL V104 Set of four for each ventilator. Heavy-gauge steel construction with neoprene vibration dampening

cushion. Maximum load 75 pounds each. For 3/8" diameter threaded rod (by others).