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Non-Rated Unit Hold-Down Brackets

CCP-UHDB

 

NOTE:

For wind load rated applications, visit our “Engineered Curbs”
section online.

Wind rating is subject to all construction features, anchoring points of the curb to building & unit to the curb, building elevation, roof type, Hurricane wind speed/distance from coastline, etc. Not just the bracket load capability.

Installation:

  1. Install package curb to roof, fasten to building structure & have roofer flash-in the exterior. (insulate exterior, install roofing felt/membrane, counter flashing, etc..)
  2. Fasten the hold-down brackets into the curb wall with 4 fasteners inside the length of curb wall at desired locations. (review & avoid unit base rail rigging & fork slot locations).
  3. Install duct within the package curb & install gasket material.
  4. Install unit over the curb aligning the unit base rail between the hold-down brackets & the curb wall.
  5. Fasten the hold-down brackets into the units’ base rail exterior.

Standard Features

  • 12ga. G90 min. (33ksi) nominal.
  • 12" long standard.
  • Qty-4, 1/4"dia. holes punched, 3/4" from the edge for field fastening into the curb wall.
  • Qty-4, 1/4"dia. holes punched, 3/4" from the edge for field fastening into the unit base rail.
  • Typically 4 provided per 2-5 ton units, 6 per 7.5-10 ton units, 8 per 15-25 ton units, etc...
  • Refer to final submittal drawings for suggested locations & quantities.

Optional Features

  • Special lengths (specify).
  • Specific quantity per unit.
  • Qty-8, Dynamic Fasteners #14 x 1 1/2" Tek3 (self drilling) carbon fasteners w/longlife coating & 5/16" hex head, loose per bracket.