Curb Installations
Greenheck supplies gasketing material for all multi- section curbs and/or plenums. Install gasketing prior to bolting split curbs and or plenums together.
NOTE: Steel, concrete or wood support is per structural engineer and in accordance with load requirements and applicable building codes.
Structural Steel
Greenheck Roof Curb for Vektor Systems
Continuous Weld or Stitch Weld
6 in. minimum stitch weld x
Steel structural support (by others)
Concrete Deck
Greenheck Roof Curb for Vektor Systems
Install 1/2 in. bolt
4 in. maximum spacing from curb corners (hardware by others)
Concrete structural support (by others)
Wood Deck
Greenheck Roof Curb for Vektor Systems
Install 1/2 in. lag or
(as determined by structural engineer)
with 1 in. washer in each hole shown above (hardware by others)
Wooden structural support (by others)
Bases—Foundation and Isolation
Critical to every fan installation is a strong, level foundation. A reinforced poured concrete pad with a structural steel base or inertia base provides an excellent foundation. Structural bases must be sturdy enough, with welded construction, to prevent flexing and vibration.
To eliminate vibration and noise from being transferred to the building, vibration isolators should be used. The fan is mounted directly on the isolation base and must be supported for the entire length of the fan base angle (Refer to the installation manual for structural bases if the base was supplied by Greenheck). Isolators are installed between the isolation base and the foundation.
After the fan, isolation base and isolators are installed, the entire assembly must be leveled. Position the level on the isolation base, not the fan shaft, for proper leveling. Additionally, the motor and fan shafts must be level and parallel relative to each other for proper alignment.
Vektor-CD
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