Greenheck Fabra Hood, Multi Section User Manual

Document #471324

Fabra Hood • Form G

®

Throat length greater than 72 inches

Multi-Section with Filters

Assembly Instructions

STEP 1

Open the shipping crates and separate the parts
according to the size of the unit. (See Figure No. 1 on
attached "PARTS LIST")

STEP 2

Place the two BASE ENDS, BASE SIDES and
INTERMEDIATE HOOD SUPPORT ASSEMBLY in their
approximate relationship to each other. (See Figure 2)
Fasten together the BASE ENDS to the BASE SIDES
using three (3) 1⁄4-20 fasteners per corner for 5 inch high
base and four (4) 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

Figure 2

between the hood width and throat width is greater than
32 inches, a REINFORCING PLATE is required in the
corners of the BASE (See Figure 2, DETAIL "A") Now
bolt the BASE SIDES to the INTERMEDIATE ASSEMBLY,
using eight (8) 1⁄4-20 fasteners per INTERMEDIATE
ASSEMBLY for 5 inch base and ten (10) 1⁄4-20 fasteners
for 12 inch high base.

Fabra Hood • Form G

1

STEP 3

Attach the HOOD SUPPORT ANGLE to the BASE
ASSEMBLY, (hand tight) using four (4) 1⁄4-20 fasteners
per angle. (See Figure 3, DETAIL "B") On some units two
(2) DIAGONAL BRACES come pre-attached to

Figure 3

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.

the HOOD SUPPORT ANGLE. Fasten the loose end
of the DIAGONAL BRACES to the BASE ASSEMBLY
using one (1) 3⁄8-16 FASTENER PER diagonal brace.
(See Figure 3, DETAIL "C'')

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 (2) 5⁄16 X 1 inch weldstud fasteners per
channel. (See Figure 4) Sandwich the END CLOSURE

Figure 4

ANGLE between the BASE END and the SIDE FILTER
CHANNEL ASSEMBLY. (See Figure 4) Fasten END
CLOSURE ANGLE down with 5⁄16 X 1 inch weldstuds
at both ends.

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Fabra Hood • Form G

STEP 6

Attach the END ANGLE (hand tight) to the ends of
the SIDE FILTER CHANNEL ASSEMBLIES and SIDE
CHANNELS, using four (4) 5⁄16 X 1 inch weldstud
fasteners per END ANGLE. (See Figure 5)
In addition, units with throat widths greater
than 36 inches will require

Figure 5

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 inch weldstud fasteners
per assembly.

STEP 7

Bolt together the HOOD RAIL ASSEMBLY LEFT to the
HOOD RAIL ASSEMBLY RIGHT using two (2) 5⁄16 X 1 inch
fasteners per HOOD RAIL ASSEMBLY. (See Figure 6)

STEP 8

Slide FILTERS in from both ends of unit. Tighten all
FILTER CHANNEL and END ANGLE fasteners only after
FILTERS are in place.

STEP 9

Attach the HOOD RAIL ASSEMBLY to the HOOD
SUPPORT ANGLES, using two (2) 3⁄8 X 3⁄4 inch fasteners
per HOOD RAIL ASSEMBLY.

Figure 7

Figure 6

(See Figure 7) NOTE: Fasteners should be hand
tightened only until step 11.

Fabra Hood • Form G

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STEP 10

Figure 8 Fabra hood Form G 471324

Assemble HOOD PANELS to HOOD RAIL ASSEMBLY.
The HOOD END ASSEMBLY with the MALE RIB is to
be installed first. (See Figure 8 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 (4) No. 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.

Figure 8

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 ore being put in place, using
one (1) No. 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 END FILTERS can be
easily replaced after the hood is completely assembled.

Tighten all pivot bracket fasteners. NOTE: There may be extra fasteners.

®

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STEP 11

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Fabra Hood Form G Assembly Instructions, Rev. 2, October 2012 Copyright © 2012 Greenheck Fan Corp.