WIREMOLD / INFLOOR SYSTEMS WALKERDUCT® E SC12 SC14 SC14-* SYSTEMS Support Couplings Ordering Information Adjustable Duct Supports with Built-in Coupling For one No. 2 Duct For one No. 4 Duct E SC222 For two No. 2 Ducts SC224 For one No. 2 Duct and one No. 4 Duct SC244 For two No. 4 Ducts SC3222 For three No. 2 Ducts SC3224 For two No. 2 Ducts and one No. 4 Duct SC3244 For one No. 2 Duct and two No. 4 Ducts SC3424 For two No. 4 Ducts and one No. 2 Duct (No. 2 Duct in center) Cat No. SC222-* SC12 SC14 E SC222 SC224 SC244 SC3222-* SC3222 SC3224 SC3242 SC3244 *CATALOG NO. SUFFIX -18 -33 -48 DIMENSION " E " Inches 8.125 11.500 12.250 15.625 19.000 16.375 19.750 19.750 23.125 (mm) (206mm) (292mm) (311mm) (396mm) (482mm) (415mm) (501mm) (501mm) (587mm) HEIGHT ADJUSTMENT 1/2 " (12.7mm) to 1 7/8 " (48mm) 1 1/2 " (38mm) to 3 3/4 " (95mm) 3 " (76mm) to 4 7/8 " (124mm) Duct supports for deeper pours are available through the factory. Catalog Numbering System: Example: Support No. of Ducts in System Hold-Down Straps Ordering Information Hold-Down Straps HS14 HS12 HS14 3/4 " (19.1mm) HS3224 For one No. 2 Duct For one No. 4 Duct HS222 For two No. 2 Ducts HS224 For one No. 2 Duct and one No. 4 Duct HS244 For two No. 4 Ducts HS3222 For three No. 2 Ducts HS3224 For two No. 2 Ducts and one No. 4 Duct 1 " (25mm) 1 5/8 " (41mm) Two Holes 9/32 " (7.1mm) E HS3244 For one No. 2 Duct and two No. 4 Ducts HS3424 For two No. 4 Ducts with one No. 2 Duct in center SC3244 Duct Size and Orientation To support, couple, and hold duct in place before and during concrete pour. Steel construction. Leveling screws provide vertical adjustment. Different leg heights available. Supports may be fastened to form or to slab through holes in the feet. Top members maintain 1 " (25mm) spacing between ducts. Locate duct supports on approximately 5' (1.5m) intervals. For projects requiring Buy America items, see page 676 for Buy America supports and combine them with 302/H302 couplings. How to Determine Correct Support Heights A B C Preset Duct D A Height of preset. B Height of duct. C Distance from bottom of duct to form or slab. This dimension is the correct support height. D Distance between finished concrete floor line and floor slab. This dimension is the sum total of A, B, and C. Support Height (C) = D - (A and B) NOTE: Recommend minimum of 6 " (76mm) clearance space on each side of duct support (E dimension) for concrete placement. To fasten ducts to the slab in shallow concrete. Used in place of duct supports. Straps maintain 1 " (25mm) spacing between ducts on multiple duct runs and prevent duct from floating during concrete pour. Attaches to slab with stakes or drive pins (not included). Locate Hold-Down Straps on approximate 5' (1.5m) centers. No. 2 Duct strap is 1 1/4 " H (32mm); No. 4 Duct strap is 1 1/2 " H (38mm); Straps have a maximum width of 1 1/4 " (32mm). Cat No. HS12 HS14 HS222 HS224 HS244 HS3222 HS3224 HS3244 HS3424 NOTE: Steel shims should be placed under #2 Duct to maintain proper preset height. WWW.LEGRAND.US/WIREMOLD DIMENSION " E " Inches 5 3/16 " 8 1/16 " 10 5/8 " 14 " 17 3/8 " 14 13/16 " 18 3/16 " 21 9/16 " 21 9/16 " (mm) (132mm) (205mm) (270mm) (356mm) (448mm) (376mm) (462mm) (548mm) (548mm) 675 INFLOOR SYSTEMS INDEXhttp://WWW.LEGRAND.US/WIREMOLD