Carnes SMCB User Manual

COPYRIGHT © 2000 CARNES CO.
ALL RIGHTS RESERVED

SUPERSEDES 12724

12724-A

CARNES COMPANY, Verona, WI. Phone: [phone] Fax:[phone] E-Mail:[e-mail] www.carnes.com

SPECIFICATION SHEET

Model SMCB

Aluminum Modular Core Diffuser With Round Neck

Beveled Surface Mount Frame

Imperial [IP] Dimensions

Metric (SI) In Parentheses

Nominal Square Square Neck Outside
Neck Size Diameter (A x B)

6” x 6” (152 x 152) 5-7/8” x 5-7/8” (149 x 149)
8” x 8” (203 x 203) 7-7/8” x 7-7/8” (200 x 200)
10” x 10” (254 x 254) 9-7/8” x 9-7/8” (251 x 251)
12” x 12” (305 x 305) 11-7/8” x 11-7/8” (302 x 302)
14” x 14” (356 x 356) 13-7/8” x 13-7/8” (352 x 352)
16” x 16” (406 x 406) 15-7/8” x 15-7/8” (403 x 403)
18” x 18” (457 x 457) 17-7/8” x 17-7/8” (454 x 454)
20” x 20” (508 x 508) 19-7/8” x 19-7/8” (505 x 505)
22” x 22” (559 x 559) 21-7/8” x 21-7/8” (556 x 556)
24” x 24” (610 x 610) 23-7/8” x 23-7/8” (607 x 607)

Nominal Square Available Nominal Round
Neck Size Inlet Sizes (C)

6” x 6” (152 x 152) 5” (127), 6” (152)
8” x 8” (203 x 203) 6” (152), 8” (203)
10” x 10” (254 x 254) 8” (203), 10” (254)
12” x 12” (305 x 305) 10” (254), 12” (305)
14” x 14” (356 x 356) 12” (305), 14” (356)
16” x 16” (406 x 406) 14” (356), 16” (406)
18” x 18” (457 x 457) 16” (406), 18” (457)
20” x 20” (508 x 508) 18” (457), 20” (508)
22” x 22” (559 x 559) 20” (508), 22” (559)
24” x 24” (610 x 610) 22” (559), 24” (610)

Notes:

1. Construction is aluminum.

2. Standard finish is electrocoat acr ylic baked enamel.
Other finishes are available on request.

3. Standard color is #11 Bright White. Other colors are
available on request.

4. Metric dimensions are in millimeters.

5. Round inlet is undersized by 1/8” (3) to fit inside
duct.

Nom. Size +4-1/8” (105)

A

B

C

1-1/4” (32)

3/4” (19)

Nom.

Size

+4-1/8”

(105)

3-7/8”

(98)

Ceiling

Nom. Duct Size = Nom. Square Neck Size.
Recommended Ceiling Opening is Nom. Size.

1-Way

2-Way Opposite

2-Way Corner

3-Way

4-Way