AMC 2026 catalogue

HVAC & Refrigeration

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Accessories

NFPA 96 Required Accessories

Clean-Out Port Kit—Retrofits ventilator with a cleanout port for access to the ventilator wheel through the windband. Includes removable plug and hardware. Required for NFPA 96 and UL 762.

Grease Collector Box—Diverts and collects heavy grease residue while protecting roof surface. Fastens directly to curb underneath ventilator and includes connection from ventilator drain to Grease Box. Required for NFPA 96 and UL 762.

Hinge Kits—Allow ventilators to swing back to expose the entire fan for cleaning and inspection, making maintenance easier. Includes retaining cable and hardware kit. Upblast Hinge Kits are required for NFPA 96 and UL 762.

Ventilated Roof Curbs—Ventilate hot exhaust ducts in commercial kitchen applications, protecting buildings and roof members. Galvanized steel curbs allow for quick ventilator installation and uniformity throughout the job. Fixed curbs are 18 ga.; adjustable curbs are 16 ga. Flat-flashing flange mounts directly to roof surface. Top flange surface is 1 3⁄4" wide.

GFN4HX54 GFN3ATV9

Item For Use With Height (in.) Length (in.) Width (in.)

Item

No. Clean Out Port Kit Belt-Drive Exhaust Fan, Centrifugal Upblast Roof Ventilators 7 in — 7 in GFN3ATV9 Grease Collector Box Dayton Upblast Roof Ventilators Dayton 6 in 12 in 5 in GFN48C174

Hinge Kit Dayton Roof Mounted Centrifugal Upblast and Downblast

Ventilators Having a 17 to 30 in Sq. Base — — — GFN4HX79

Hinge Kit Dayton Roof Mounted Centrifugal Down Blast Ventilators — 34 in 34 in GFN20CK47

Hinge Kit Dayton Roof Mounted Centrifugal Downblast

Ventilators Having a 40 in Sq. Base — 40 in 40 in GFN20CK48

Hinge Kit Dayton Roof Mounted Centrifugal Downblast

Ventilators Having a 42 in Sq. Base — 42 in 42 in GFN20CK49

Hinge Kit Dayton Roof Mounted Centrifugal Downblast

Ventilators Having a 46 in Sq. Base — 46 in 46 in GFN20CK50

Hinge Kit Dayton Roof Mounted Centrifugal Downblast

Ventilators Having a 52 in Sq. Base — 52 in 52 in GFN20CK51

Hinge Kit Dayton Roof Mounted Centrifugal Downblast

Ventilators Having a 64 in Sq. Base — 64 in 64 in GFN20CK52

Hinge Kit Dayton Roof-Mounted Centrifugal Up Blast

Ventilators Having a 34 in Sq. Base — 34 in 34 in GFN20CK53

Hinge Kit Dayton Roof-Mounted Centrifugal Up Blast

Ventilators Having a 40 in Sq. Base — 40 in 40 in GFN20CK54

Hinge Kit Dayton Roof-Mounted Centrifugal Up Blast

Ventilators Having a 42 in Sq. Base — 42 in 42 in GFN20CK55

Hinge Kit Dayton Roof-Mounted Centrifugal Up Blast

Ventilators Having a 46 in Sq. Base — 46 in 46 in GFN20CK56

Curb Height (in.) Outside Square (in.) Inside Square (in.) Flashing Flange (in.) Use w/Dayton Ventilators

Item

No. Roof Curb Adjustable, Ventilated

18 31 to 46 28 to 43 5 Having a Square Base From 32 1⁄2 to 44 1⁄2 in GFN4HX63 24 17 1⁄2 to 22 14 1⁄2 to 18 5 Having a Square Base From 19 to 20 1⁄2 in GFN4HX61 24 24 to 29 21 to 26 5 Having a Square Base From 25 1⁄2 to 27 1⁄2 in GFN4HX62 Fixed, Ventilated

18 32 1⁄2 in 29 in 4 Having a 34 in Square Base GFN4HX58 18 40 1⁄2 in 37 in 4 Having a 42 in Square Base GFN4HX59 18 44 1⁄2 in 41 in 4 Having a 46 in Square Base GFN4HX60 24 17 1⁄2 in 14 in 4 Having a 19 in Square Base GFN4HX54 24 20 1⁄2 in 17 in 4 Having a 22 in Square Base GFN4HX55 24 24 1⁄2 in 21 in 4 Having a 26 in Square Base GFN4HX56 24 28 1⁄2 in 25 in 4 Having a 30 in Square Base GFN4HX57

DAYTON