AMC 2026 catalogue

HVAC & Refrigeration

Exhaust Shutters and Dampers

Find even MORE at Grainger.ca 1859

1-888-602-0000 HVAC & REFRIGERATION

Motorized Dampers

▪Exhaust or supply ▪Mount: horizontal or vertical ▪Max. velocity: 3500 fpm ▪Motor includes end switch Stainless steel jamb seals help minimize light, air, and moisture. Feature center-pivoting louvers for a full 90° opening. Flanged frames for flush mounting to exterior or interior surfaces. Prepunched mounting holes. Welded- corner construction and factory-installed motors. Mill-finish extruded aluminum models have 0.125"-thick frames, and 0.08"-thick louvers. G-90 galvanized steel models have 14-ga. frames, 16-ga. louvers. Motor bracket extension is from damper frame to end of bracket.

DTN3C188

DAYTON

Backdraft Dampers For belt-drive centrifugal roof and wall ventilators. Max. velocity: 2000 fpm for models up to 19" and no-flange, 2250 fpm for 23" and larger.

WARNING: Not for use with kitchen exhaust applications.

No Flange, Horizontal/Vertical Mount—For use in roof curbs, ductwork, and wall collars when using a fan or power roof ventilator. G-90 galvanized frame is 2" deep. Mill-finish aluminum louvers. Stainless steel pivot pins and rivets, and nylon bushings. Prepunched conduit knockout. Models over 30" are horizontal-mount only.

Roof-Mount—G-90 galvanized steel frame, 2" deep with 1" flange. Aluminum louvers, stainless steel pivot pins, nylon bushings, and felted edge. Prepunched conduit hole knockout.

WWG2FTX4

DTN24N066 DTN4HX65

Item Voltage Amps Height (in.) Width (in.) Depth (in.)

Item

No. Shutter Motor 120/240V AC 0.20/0.14 6 1⁄8 in 3 1⁄2 in 7 1⁄4 in DTN24N066

Damper Size (in.)

Overall Size (in.)

Item

No. No Flange, Horizontal Mount 33 3⁄4 x 33 3⁄4 33 3⁄4 x 33 3⁄4 WWG3HHL9 35 3⁄4 x 35 3⁄4 35 3⁄4 x 35 3⁄4 WWG3HHN1 39 3⁄4 x 39 3⁄4 39 3⁄4 x 39 3⁄4 WWG3HHN2 41 3⁄4 X 41 3⁄4 41 3⁄4 X 41 3⁄4 WWG6WRK7 47 3⁄4 x 47 3⁄4 47 3⁄4 x 47 3⁄4 WWG3HHN3 49 3⁄4 X 49 3⁄4 49 3⁄4 X 49 3⁄4 WWG6WRK8 55 3⁄4 X 55 3⁄4 55 3⁄4 x 55 3⁄4 WWG5NKN7 59 3⁄4 X 59 3⁄4 59 3⁄4 X 59 3⁄4 WWG5NKN8 No Flange, Horizontal or Vertical Mount

7 3⁄4 x 7 3⁄4 7 3⁄4 x 7 3⁄4 WWG3HHL4 9 3⁄4 x 9 3⁄4 9 3⁄4 x 9 3⁄4 WWG2FTW8 11 3⁄4 x 11 3⁄4 11 3⁄4 x 11 3⁄4 WWG2FTX4

Damper Size (in.)

Overall Size (in.)

Item

No. 13 3⁄4 x 13 3⁄4 13 3⁄4 x 13 3⁄4 WWG2FTX5 15 3⁄4 x 15 3⁄4 15 3⁄4 x 15 3⁄4 WWG3HHL5 17 3⁄4 x 17 3⁄4 17 3⁄4 x 17 3⁄4 WWG2FTU9 19 3⁄4 x 19 3⁄4 19 3⁄4 x 19 3⁄4 WWG3HHL6 23 3⁄4 x 23 3⁄4 23 3⁄4 x 23 3⁄4 WWG2FTV7 27 3⁄4 x 27 3⁄4 27 3⁄4 x 27 3⁄4 WWG3HHL7 29 3⁄4 x 29 3⁄4 29 3⁄4 x 29 3⁄4 WWG3HHL8 Roof Mount, Exhaust

9 1⁄2 x 9 1⁄2 11 1⁄2 x 11 1⁄2 WWG3TZ50 12 x 12 14 x 14 WWG4HX64 15 x 15 17 x 17 DTN4HX65 19 x 19 21 x 21 DTN4HX66 23 x 23 25 x 25 DTN4HX67 27 x 27 29 x 29 WWG4HX68

Damper Size (in.)

Overall Size (in.)

Item

No. 35 x 35 37 x 37 WWG4HX69 39 x 39 41 x 41 WWG4HX70 50 x 50 52 x 52 WWG4HX71 Wall Mount, Supply

8 x 8 10 3⁄4 x 10 3⁄4 WWG4HX72 10 x 10 12 3⁄4 x 12 3⁄4 WWG4HX73 11 x 11 13 3⁄4 x 13 3⁄4 WWG4HX33 12 x 12 14 3⁄4 x 14 3⁄4 WWG4HX74 13 x 13 15 3⁄4 x 15 3⁄4 WWG4HX75 14 x 14 16 3⁄4 x 16 3⁄4 WWG4HX76 15 x 15 17 3⁄4 x 17 3⁄4 DTN4HX77 17 x 17 19 3⁄4 x 19 3⁄4 WWG5NKN4 20 x 20 22 3⁄4 x 22 3⁄4 WWG5NKN5 25 x 25 27 3⁄4 x 27 3⁄4 WWG5NKN6

DAYTON

Wall-Mount—16-ga. mill-finish extruded alum- inum frame, 1 1⁄2" deep with 1 3⁄8" flange. Mill-finish aluminum louvers have galvanized steel reinforce- ment strip. Spring close for positive seal.

Optional Shutter Motor—Motor packs expand options where standard 120/240 line voltage is not available. 60 Hz, 1-phase motors simplify installation by eliminating the need for transformers or other adaptations. Not for use with 8" roof curbs.

Frame Less Flange Voltage

No. of Panels Free Area

Galvanized Steel

Item

No. Fire/Smoke Damper

28.3 sq in 24 V 1 23 sq in GFN3HGK6 28.3 sq in 120 V 1 23 sq in GFN3HGL4 50.2 sq in 24 V 1 43.3 sq in GFN3HGK7 50.3 sq in 120 V 1 43.3 sq in GFN3HGL5 64 sq in 24 V 1 35.3 sq in GFN3HGJ3 64 sq in 120 V 1 35.3 sq in GFN3HGJ9 78.5 sq in 24 V 1 69.8 sq in GFN3HGK8 78.5 sq in 120 V 1 69.8 sq in GFN3HGL6 100 sq in 24 V 1 43.5 sq in GFN3HGJ4 100 sq in 120 V 1 43.5 sq in GFN3HGK1 113 sq in 24 V 1 93.5 sq in GFN3HGK9 113 sq in 120 V 1 93.5 sq in GFN3HGL7 144 sq in 24 V 1 74.2 sq in GFN3HGJ5 144 sq in 120 V 1 74.2 sq in GFN3HGK2 153.9 sq in 24 V 1 131 sq in GFN3HGL1 153.9 sq in 120 V 1 131 sq in GFN3HGL8 201 sq in 24 V 1 172.8 sq in GFN3HGL2 201 sq in 120 V 1 172.8 sq in GFN3HGL9 254 sq in 120 V 1 216 sq in GFN3HGN1 254.5 sq in 24 V 1 216 sq in GFN3HGL3 256 sq in 24 V 1 159.7 sq in GFN3HGJ6 256 sq in 120 V 1 159.7 sq in GFN3HGK3 324 sq in 24 V 1 240.9 sq in GFN3HGJ7 324 sq in 120 V 1 240.9 sq in GFN3HGK4 576 sq in 24 V 1 382.3 sq in GFN3HGJ8 576 sq in 120 V 1 382.3 sq in GFN3HGK5 Smoke Damper

28.3 sq in 24 V 1 23 sq in GFN3HGH2 28.3 sq in 120 V 1 23 sq in GFN3HGH7 50.3 sq in 120 V 1 43.3 sq in GFN3HGH8 50.3 sq in 24 V 1 43.3 sq in GFN3HGH3 64 sq in 24 V 1 35.3 sq in GFN3HGG1 64 sq in 120 V 1 35.3 sq in GFN3HGG6 78.5 sq in 24 V 1 69.8 sq in GFN3HGH4 78.5 sq in 120 V 1 69.8 sq in GFN3HGH9 100 sq in 120 V 1 43.5 sq in GFN3HGG7 100 sq in 24 V 1 43.5 sq in GFN3HGG2 113 sq in 24 V 1 93.5 sq in GFN3HGH5 113 sq in 120 V 1 93.5 sq in GFN3HGJ1 153.9 sq in 120 V 1 131 sq in GFN3HGJ2 153.9 sq in 24 V 1 131 sq in GFN3HGH6 256 sq in 120 V 1 159.7 sq in GFN3HGG8 256 sq in 24 V 1 159.7 sq in GFN3HGG3 324 sq in 120 V 1 240.9 sq in GFN3HGG9 324 sq in 24 V 1 240.9 sq in GFN3HGG4 576 sq in 120 V 1 382.3 sq in GFN3HGH1 576 sq in 24 V 1 382.3 sq in GFN3HGG5

Frame Less Flange

No. of Panels Voltage

Overall Square

Sq. Opening Required Free Area

Motor Bracket

Extension

Extruded Aluminum Galvanized Steel Item

No.

Item

No. Control Damper

9.75 sq in 1 100 to 240 11 3⁄4 in 12" 0.4 sq ft 11 1⁄2 in WWG5NKK1 — 12 sq in 1 100 to 240 15 in 13" 0.8 sq ft 6 7⁄8 in WWG3HHP4 WWG3HHP3 13.75 sq in 1 100 to 240 15 3⁄4 in 16" 1.1 sq ft 11 1⁄2 in WWG5NKK2 — 16 sq in 1 100 to 240 19 in 17" 1.7 sq ft 6 7⁄8 in DTN4C560 WWG3C725 17.75 sq in 1 100 to 240 19 3⁄4 in 20" 2.1 sq ft 11 1⁄2 in WWG5NKK3 — 20 sq in 1 100 to 240 23 in 21" 2.1 sq ft 6 7⁄8 in DTN4C561 DTN3C726 21.75 sq in 1 100 to 240 23 3⁄4 in 24" 3.2 sq ft 11 1⁄2 in WWG5NKK4 — 24 sq in 1 100 to 240 27 in 25" 3.6 sq ft 6 7⁄8 in DTN3C315 DTN3C727 27.75 sq in 1 100 to 240 29 3⁄4 in 30" 5.1 sq ft 11 1⁄2 in WWG5NKK5 — 30 sq in 1 100 to 240 33 in 31" 5.7 sq ft 10 1⁄4 in DTN3C234 DTN3C728 33.75 sq in 1 100 to 240 35 3⁄4 in 36" 7.6 sq ft 11 1⁄2 in WWG5NKK6 — 36 sq in 1 100 to 240 39 in 37" 8.3 sq ft 10 1⁄4 in DTN3C131 DTN3C729 39.75 sq in 1 100 to 240 41 3⁄4 in 42" 10.5 sq ft 11 1⁄2 in WWG5NKK7 — 42 sq in 1 100 to 240 45 in 43" 11.3 sq ft 10 1⁄4 in DTN3C235 WWG3C730 45.75 sq in 1 100 to 240 47 3⁄4 in 48" 13.9 sq ft 11 1⁄2 in WWG5NKK8 — 48 sq in 1 100 to 240 51 in 49" 14.8 sq ft 10 1⁄4 in DTN3C132 WWG3C731 54 sq in 2 24 to 240 57 in 55" 18.8 sq ft 10 1⁄4 in DTN3C188 WWG3C732 60 sq in 2 24 to 240 63 in 61" 23.3 sq ft 10 1⁄4 in DTN3C189 WWG3C733