Greenheck FGI Fabra Hood User manual

Step 1 Fabra hood Form F 471322
Figure 2 Fabra hood Form F 471322
Step 1
Open the shipping crates and separate the parts according to the size of the unit, refer to Figure 1.
Step 2
Place the two BASE ENDS and the two BASE SIDES in their approximate relationship to each other, see Figure 2.
Fasten together using three 1/4-20 fasteners per corner for 5 inch high base and four 1/4-20 fasteners per corner for
12 inch high base.
Note: Fasteners should be hand tightened only until step 4. On some units where the difference between the
hood width and throat width is greater than 32 inches, a REINFORCING PLATE is required in the corners of the
BASE, refer to Figure 2, Detail A.
Figure 2
Figure 1
®
Fabra Hood • Form F 1
®
Document 471322
Model FGI/FGR Fabra Hood
Form F - Single Section with Filters
Throat length less than or equal to 72 inches
Assembly Instructions
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.

Figure 3 Fabra hood Form F 471322
Figure 4 Fabra hood Form F 471322
Step 3
Attach the HOOD SUPPORT ANGLE to the BASE ASSEMBLY (hand tight) using four 1/4-20 fasteners per angle,
see Figure 3, Detail B.
On some units, two DIAGONAL BRACES come pre-attached to the HOOD SUPPORT ANGLE. Fasten the loose
end of the DIAGONAL BRACES to the BASE ASSEMBLY using one 3/8-16 FASTENER per diagonal brace, see
Figure 3, Detail C.
Step 4
Tighten all BASE, SIDE and BASE END fasteners. Caulk all inside corners where the base sections come together.
At this point, the base may be lifted onto the roof curb before proceeding with further assembly.
Step 5
Attach the FILTER SIDE CHANNEL (hand tight) to the HOOD SUPPORT ANGLE and the FILTER SIDE CHANNEL
ASSEMBLY (hand tight) to the BASE SIDE, using two 5/16 X 1 inch weldstud fasteners per channel, see Figure 4.
Sandwich the END CLOSURE ANGLE between the BASE END and the SIDE FILTER CHANNEL ASSEMBLY, see
Figure 4.
Figure 3 Fabra hood Form F 471322
Figure 3
Figure 4
Fabra Hood • Form F2
®

Figure 5 Fabra hood Form F 471322
Figure 6 Fabra hood Form F 471322
NYLOC NUT
Step 6
Attach the END ANGLE (hand tight) to the ends of the SIDE FILTER CHANNEL ASSEMBLIES and SIDE CHANNELS
using four 5/16 X 1 weldstud fasteners per END ANGLE, see Figure 5. In addition, units with throat widths greater
than 36 inches will require FILTER END CHANNEL ASSEMBLIES, see Figure 5, Detail D. Fasten FILTER END
CHANNEL ASSEMBLY (hand tight) to the END CLOSURE ANGLE and END ANGLE, using two 5/16 X 1 weldstud
fasteners per assembly.
Step 7
Slide FILTERS in from both ends of unit. Tighten all FILTER CHANNEL and END ANGLE fasteners only after
FILTERS are in place.
Step 8
Attach the HOOD RAIL ASSEMBLY to the HOOD SUPPORT ANGLES using 3/8 x 3/4 inch bolt with 3/8 inch
Nyloc nut at each attachment point, see Figure 6.
NOTE: Fasteners should be hand tightened only until step 10.
Figure 5
Figure 6
Fabra Hood • Form F 3
®

Figure 7 Fabra hood Form F 471322
Step 9
Assemble HOOD PANELS
to HOOD RAIL ASSEMBLY.
The HOOD END ASSEMBLY
with the MALE RIB is to be
installed first see Figure 7,
Detail E. Place the remaining
HOOD PANELS in place,
interlocking panels as you
go, see Detail E. Secure each
HOOD PANEL to the HOOD
RAIL ASSEMBLY as it is put
in place using four 12 X 3/8
inch sheet metal screws with
sealing washers per HOOD
PANEL. The HOOD END
ASSEMBLY with the FEMALE
RIB is to be installed last.
NOTE: Hoods over 9 feet
wide are supplied with
special HOOD CLIPS. See Detail F. HOOD
PANELS have predrilled holes for HOOD CLIP
installation. Install CLIPS as HOOD PANELS
are being put in place, using one 12 X 5/8 inch
sheet metal screw with sealing washer per
HOOD CLIP. To install CLIPS in the last panel,
remove the end FILTERS to provide access to
the underside of the hood. The FILTERS can
be easily replaced after the hood is completely
assembled.
Step 10 Fabra hood Form F 471322
Step 10
Tighten all pivot bracket fasteners. NOTE: There may be extra fasteners.
Figure 7
471322 • Fabra Hood Form F, Rev. 4, August 2018 Copyright 2018 © Greenheck Fan Corporation4
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: [phone] • Fax: [phone] • Parts: 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com
Our Commitment
AMCA Publication 410-96, Safety Practices for Users and
Installers of Industrial and Commercial Fans, provides
additional safety information. This publication can be obtained
from AMCA International, Inc. at www.amca.org.
Greenheck's Gravity Ventilators catalog provides additional
information describing the equipment, fan performance,
available accessories, and specification data.