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Roof Curb and Mounting Details
The figures below illustrates three common methods
used to install Vektor systems. Methods used to attach
a Vektor unit are dependent on local codes, roof
construction design and roof construction materials.
Consult an architect or structural engineer for proper
means of attachment.
Steel
Vektor-H
Concrete
Lifting Information
CAUTION
The cone is to be lifted by the cone lifting lugs,
separately and individually from the fan assembly.
NOTE
Steel, concrete or wood roof support is per structural
engineer and in accordance with load requirements
and applicable building codes.
STEEL STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Continuous weld or stitch weld.
Minimum 6 inch (152.4 mm) stitch weld by
3.25 inch (82.5 mm) spacing minimum.
Minimum 6 inch (152.4 mm) weld on each corner.
OR
Install 5/16 inch (7.9375 mm) 24 Dril-Flex® Self-Drilling
Tapping Screws. 3/16 inch (4.7625 mm) minimum thread
engagement into A36 steel, centered in flange.
4.5 inch (114.3 mm) spacing
5/8 inch (15.875 mm) minimum edge distance
ALL HARDWARE BY OTHERS
Greenheck Roof Curb GPFHL/GPFHD
CONCRETE STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Install 3/8 inch (9.525 mm) SS power wedge bolts
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum embedment
4.5 inch (114.3 mm) minimum edge
distance centered in flange
ALL HARDWARE BY OTHERS
Greenheck Roof Curb GPFHL/GPFHD
WOODEN STRUCTURAL SUPPORT
(BY OTHERS, SEE NOTE ABOVE)
Greenheck Roof Curb GPFHL/GPFHD
Install 3/8 inch (9.525 mm) SS lag or thru-bolt with
1 inch (25.4 mm) O.D. washer
2.5 inch (63.5 mm) maximum spacing from curb corners
4.5 inch (114.3 mm) maximum bolt spacing
3.5 inch (88.9 mm) minimum tread engagement,
not including tapered tip
2 inch (50.8 mm) minimum edge distance,
centered in flange
Pre-drill holes 40-60% of lag diameter
ALL HARDWARE BY OTHERS
Single Fan System
without Bypass Air Plenum
Single Fan System
with Bypass Air Plenum
Cone
Lifting Lugs
Bypass
Air
Plenum
Fan
Cone
Unit
Assembly
Lifting Lugs
Multiple Fan System with Bypass Air Plenum
Cone
Lifting Lugs
Unit
Assembly
Lifting Lugs
Unit
Assembly
Lifting Lugs
Cone
Lifting Lugs
Vektor-HS with SAVVE Technology
4
Laboratory Exhaust System
®