©Johnstone Supply eCatalog 216

VENTILATORS Accessories

Wall Exhaust Dampers • For direct drive and belt drive prop axial wall ventilators • Blades open when ventilator comes on, close when airflow stops

• Galvanized 19-gauge steel frame, 3" deep with 1-1/2" flange • Aluminum blades have felted edges for quiet operation

Outside Flange Dimensions

Recommended Wall Opening 13-1/2 Sq. In. 17-1/2 Sq. In. 19-1/2 Sq. In. 21-1/2 Sq. In.

Each

Order # Mfg. #

Damper Size

Shipping Wt. Lbs.

X89-823 X89-825 X89-827 X90-515 X90-520 X90-525 1ACC12WD 12-1/2 Sq. In. 1ACC16WD 16-1/2 Sq. In. 1ACC18WD 18-1/2 Sq. In. 1ACC24WD 24-1/2 Sq. In. 1ACC30WD 30-1/2 Sq. In. 1ACC36WD 36-1/2 Sq. In. X89-829 1ACC20WD 20-1/2 Sq. In. X90-530 1ACC42WD 42-1/2 Sq. In. X90-536 1ACC48WD 48-1/2 Sq. In.

15 Sq. In. 19 Sq. In. 21 Sq. In. 23 Sq. In. 27 Sq. In. 33 Sq. In. 39 Sq. In. 45 Sq. In. 51 Sq. In.

5 7 8 9

145.00 159.00 165.00 169.00 205.00 235.00 295.00 345.00 515.00

25 Sq. In. 31 Sq. In. 37 Sq. In. 43 Sq. In. 49 Sq. In.

10 15 19 35 39

Motorized Dampers • For belt drive prop axial wall and roof supply or exhaust ventilators • Galvanized 14-gauge steel frame, 2" deep with 1-1/2" flange; 16-gauge steel blades

• Power on to open, spring return to close • 120/240V, .19/.11 amps, 60 Hz (54" and 60" models 240V only)

Outside Flange Dimensions

Recommended Wall Opening

Each

Order # Mfg. #

Damper Size

Shipping Wt. Lbs.

X90-513 X90-517

1ACC24MD 24" x 24" 1ACC30MD 30" x 30"

27" x 27" 33" x 33" 39" x 39" 45" x 45" 51" x 51"

25" x 25" 31" x 31" 37" x 37" 43" x 43" 49" x 49"

32 42 70 74 91

785.00 1345.00 1545.00 1799.00 1945.00

X90-522 1ACC36MD 36" x 36"

X90-527

1ACC42MD 42" x 42"

X90-533 1ACC48MD 48" x 48"

Fixed Curbs • 16-gauge galvanized steel construction with welded corners • Top flange surface includes 1-1/2" wide wood nailer

• Canted design allows for wraparound installation of roofing material for leak-proof installation • Shutter flanges are included • 8" and 12" tall roof curbs

Each

Order # Mfg. #

Curb Square ID Curb Square OD Height

Shipping Wt. Lbs.

X90-735 5ACC17FS

14-1/2" 17-1/2" 21-1/2" 25-1/2" 29-1/2" 41-1/2" 14-1/2" 17-1/2" 21-1/2" 25-1/2" 29-1/2" 37-1/2" 41-1/2"

17-1/2" 20-1/2" 24-1/2" 28-1/2" 32-1/2" 44-1/2" 17-1/2" 20-1/2" 24-1/2" 28-1/2" 32-1/2" 40-1/2" 44-1/2"

8" 8" 8" 8" 8" 8"

21 24 29 37 42 66 27 32 38 47 54 70 84

325.00 379.00 399.00 425.00 449.00 665.00 405.00 439.00 469.00 505.00 549.00 649.00 755.00

X90-737 X90-740 X90-743 X90-745 X90-753 X91-027 X91-028

5ACC20FS 5ACC24FS 5ACC28FS 5ACC32FS 5ACC44FS 5ACC17FT 5ACC20FT

12" 12" 12" 12" 12" 12" 12"

X91-029 5ACC24FT X91-030 5ACC28FT

X91-031 X91-032

5ACC32FT 5ACC40FT

X91-033 5ACC44FT

Ventilated Roof Curbs • Designed for use in commercial kitchen applications • Galvanized steel ventilated curb with welded corners allows for quick ventilator installation

• Self-flashing • Stamped louvers on curb sides allow hot exhaust ducts to ventilate, protecting building and roof members

Each

Order # Mfg. #

Inside Dimensions Height

Length

Shipping Wt. Lbs.

X90-736 5ACC17VC 14-1/2 Sq. In. X90-738 5ACC20VC 17-1/2 Sq. In.

24" 24" 24" 24" 18" 18" 18"

17-1/2 Sq. In. 20-1/2 Sq. In. 24-1/2 Sq. In. 28-1/2 Sq. In. 32-1/2 Sq. In. 40-1/2 Sq. In. 44-1/2 Sq. In.

30 35 43 53 61 78 92

575.00 629.00 645.00 675.00 735.00 819.00 915.00

X90-741 X90-744 X90-746 X90-751

5ACC24VC 21-1/2 Sq. In. 5ACC28VC 25-1/2 Sq. In. 5ACC32VC 29-1/2 Sq. In. 5ACC40VC 37-1/2 Sq. In.

X90-754 5ACC44VC 41-1/2 Sq. In.

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