AMC 2026 catalogue

HVAC & Refrigeration

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HVAC & REFRIGERATION Upblast Exhaust Ventilators

Centrifugal Direct-Drive Upblast Exhaust Ventilators

▪Aluminum, backward-inclined wheel ▪Motor, drive frame, and blower wheel isolated from mounting base ▪Motor compartment isolated from contaminated air ▪NEMA 1 junction box in motor enclosure (Hazardous

units have NEMA 7 & 9 disconnect switch) ▪UL and C-UL Listed Performance certified is for installation type A: free inlet,

free outlet. Performance ratings do not include the effects of appurtenances (accessories). The sound ratings shown are loudness values in fan sones at 5 ft. (1.5m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: free inlet hemispherical sone levels.

Note: Additional sizes available on Grainger.ca. Speed controllers available for 115V units only. For kitchen application, check with local code authorities for minimum duct velocities. Do not use dampers in any kitchen application. NFPA 96.

Roof

GFN48C179

Wheel Dia. CFM @ 0.000" SP CFM @ 0.125" SP CFM @ 0.250" SP CFM @ 0.375" SP CFM @ 0.500" SP CFM @ 0.750" SP Speed Control

Item

No. Roof

8 1⁄4 in 133/165/197 81/126/164 -/70/128 -/-/- -/-/- -/-/-

48C172 GFN5DVN6 8 1⁄4 in 250/309/369 171/255/325 -/152/269 -/-/160 -/-/- -/-/- GFN5DVN8 11 in 325/403/480 247/343/431 133/272/376 -/173/314 -/-/235 -/-/- GFN5DVP0

11 in 450/596/903 324/505/842 -/395/782 -/-/722 -/-/652 -/-/420 43Y140, Included On Motor GFN48C179

11 in 549/680/811 451/600/744 306/517/677 -/391/604 -/-/501 -/-/- 48C172 GFN5DVP4 11 in 711/880/1049 570/774/964 381/641/861 -/484/747 -/199/616 -/-/- GFN5DVP6 11 in 732/970/1468 625/897/1422 481/806/1373 -/707/1315 -/-/1255 -/-/1129 43Y140, Included On Motor

GFN5DVR2 11 in 1067 — — — 419/688/977 350/610/929 GFN52CD36 11 in 1468 1422 1373 1315 1255 1129 48C172 GFN4HZ41 11 in — — — — — — — GFN20FT14

12 1⁄2 in 1015/1346/2037 905/1261/1979 781/1180/1923 581/1091/1869 -/981/1816 -/-/1710 43Y140, Included On Motor GFN48C180

12 1⁄2 in 2037 1979 1923 1869 1816 1710 48C173 GFN5DVP8 13 1⁄4 in 1180 1057 914 675 — — 48C172 GFN4HZ44

13 1⁄4 in 1180/1564/2366 1057/1471/2305 914/1379/2244 675/1280/2183 -/1144/2122 -/-/1994 43Y140, Included On Motor GFN48C181

13 1⁄4 in 2366 2305 2244 2183 2122 1994 — GFN4HZ45 30 1⁄2 in — — — — — — GFN52CD35

Item For Use With

Item

No. Centrifugal Upblast Roof Exhaust Fan — GFN56JN76

Wheel

Dia.

Shaft Dia. Wheel End A B C D

Recommended Damper Size (in.)

Recommended

Damper Stock No.

Fixed UL 762 Kitchen Roof Curb Stock No.

Adj. UL 762 Kitchen Roof Curb Stock No.

Recommended

12 In. Fixed Curb Item No.

Adj. 12 3⁄8" H Roof Curb

Stock No.

Item

No. Roof

8 1⁄4 in 5⁄16 in 17 1⁄4 in 18 3⁄8 in 13 1⁄2 in 11 3⁄8 in — — — — 2RB75 2ZV82 GFN5DVN6 19 in 18 3⁄8 in 13 1⁄2 in 11 3⁄8 in — — — — 2RB75 2ZV82 GFN5DVN8

11 in

— 19 in 24 7⁄8 in 22 in 17 3⁄8 in 12 x 12 4HX64 4HX54 4HX61 4HX46 4C670 GFN52CD36

1⁄2 in

19 in 21 in 13 3⁄8 in 11 1⁄2 in 12 x 12 4HX64 — — 2RB75 2ZV82 GFN48C179 22 in 24 7⁄8 in 22 in 17 3⁄8 in 15 x 15 4HX65 4HX55 4HX61 2RB75 2ZV82 GFN5DVR2 19 in 21 in 13 3⁄8 in 11 1⁄2 in 9 1⁄2 x 9 1⁄2 3TZ50 4HX54 4HX61 2RB75 2ZV82 GFN5DVP4 19 in 21 in 15 1⁄4 in 13 3⁄8 in 9 1⁄2 x 9 1⁄2 3TZ50 4HX54 4HX61 2RB75 2ZV82 GFN5DVP6 22 in 24 7⁄8 in 22 in 17 3⁄8 in 15 x 15 4HX65 4HX55 4HX61 4HX47 2ZV82 GFN4HZ41 19 in 21 in 13 3⁄8 in 11 1⁄2 in 9 1⁄2 x 9 1⁄2 3TZ50 4HX54 4HX61 2RB75 2ZV82 GFN5DVP0 3⁄4 in 19 in 24 7⁄8 in 25 1⁄8 in 17 3⁄8 in 12 X 12 4HX64 4HX54 4HX61 2RB75 2ZV82 GFN20FT14

12 1⁄2 in 1⁄2 in

19 in 24 7⁄8 in 28 1⁄4 in 17 3⁄8 in 12 x 12 4HX64 4HX54 4HX61 2RB75 2ZV82 GFN48C180 22 in 24 7⁄8 in 23 3⁄4 in 17 3⁄8 in 15 x 15 4HX65 4HX55 4HX61 2RB76 2ZV82 GFN5DVP8

13 1⁄4 in 22 in 24 7⁄8 in 23 3⁄4 in 17 3⁄8 in 15 x 15 4HX65 4HX55 4HX61 4HX47 2ZV82 GFN4HZ45 22 in 24 7⁄8 in 23 3⁄4 in 17 3⁄8 in 15 x 15 4HX65 4HX55 4HX61 2RB76 2ZV82 GFN4HZ44 5⁄8 in 19 in 24 7⁄8 in 28 1⁄4 in 17 3⁄8 in 12 x 12 4HX64 4HX54 4HX61 2RB75 2ZV82 GFN48C181 30 1⁄2 in 1 in 40 in 50 in 36 in 29 in 27 x 27 4HX68 4HX59 4HX63 2RB81 3C438 GFN52CD35

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