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Greenheck FGI Installation, Operation And Maintenance Manual
Greenheck FGI Installation, Operation And Maintenance Manual

Greenheck FGI Installation, Operation And Maintenance Manual

Fabra hood gravity ventilator

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®
Installation, Operation and Maintenance Manual
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.
Fabra Hood Gravity Ventilator
Single section with birdscreen, throat length less
than or equal to 72 inches
Fabra hood gravity ventilators are designed for intake
(model FGI) or relief (model FGR) applications with
natural gravity or negative pressure systems. Units
feature a low-silhouette, fabra hood-style housing offing
superior load bearing strength, weather-resistance,
dimensional flexibility and appearance.
IMPORTANT:
For Standard Assembly, follow instructions on pages 2-5.
For High Wind Assembly, follow instructions on pages 6-11.
For Typical Installation, refer to page 12.
General Safety Information
Only qualified personnel should install this fan.
Personnel should have a clear understanding of these
instructions and should be aware of general safety
precautions. Improper installation can result in electric
shock, possible injury due to coming in contact with
moving parts, as well as other potential hazards. Other
considerations may be required if high winds or seismic
activity is present. If more information is needed,
contact a licensed professional engineer before
moving forward.
Receiving
Upon receiving the product check to ensure all items
are accounted for by referencing the delivery receipt or
packing list. Inspect each crate or carton for shipping
damage before accepting delivery. Alert the carrier
of any damage detected. The customer will make
a notation of damage (or shortage of items) on the
delivery receipt and all copies of the bill of lading which
is countersigned by the delivering carrier. If damaged,
immediately contact your local representative. Any
physical damage to the unit after acceptance is not the
responsibility of the manufacturer.
®
Model FGI and FGR with Birdscreen
Fabra Hood Gravity Ventilator
Unpacking
Verify that all required parts and the correct quantity of
each item have been received. If any items are missing,
report shortages to your local representative to arrange
for obtaining missing parts. Due to availability of
transportation and truck space all items for the unit may
not be shipped together. Confirmation of shipment(s)
must be limited to only items on the bill of lading.
Handling
Lifting the fans must be done with care to avoid
damaging the housing. Fans are to be rigged and
moved by the optional lifting brackets provided or by
the skid when a forklift is used. Location of brackets
varies by model and size. Handle in such a manner
as to keep from scratching or chipping the coating (if
applicable). Damaged finish may reduce the ability of
the ventilator to resist corrosion.
Document 471321
Fabra Hood Gravity Ventilator
1

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Summary of Contents for Greenheck FGI

  • Page 1 Single section with birdscreen, throat length less than or equal to 72 inches Fabra hood gravity ventilators are designed for intake (model FGI) or relief (model FGR) applications with natural gravity or negative pressure systems. Units feature a low-silhouette, fabra hood-style housing offing superior load bearing strength, weather-resistance, dimensional flexibility and appearance.
  • Page 2: Standard Assembly

    Step 1 - Fabra hood B #471321 Standard Assembly IMPORTANT: For high wind rated hood, follow assembly instructions starting on page 6. HOOD END ASSEMBLY (FEMALE RIB) HOOD PANEL HOOD END ASSEMBLY (MALE RIB) SIDE BIRDSCREEN ASSEMBLY HOOD RAIL ASSEMBLY END BIRDSCREEN ASSEMBLY BASE ASSEMBLY...
  • Page 3 Figure 3 Fabra hood B #471321 Step 3 – Attach HOOD BASE ENDS to HOOD BASE SIDES Attach the hood support angle to the base assembly, 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 1/4-20 fastener per diagonal brace.
  • Page 4 Step 6 – Install END BIRDSCREEN ASSEMBLY Install the end birdscreen assembly, refer to Figure 5. Turn the birdscreen clips (which are pre-assembled to the end birdscreen assembly) so that two are under the side birdscreen frame extension and the other two are under the hood support angle.
  • Page 5 Step 8 – Assemble HOOD PANELS to HOOD RAIL ASSEMBLY 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.
  • Page 6 High Wind Assembly NOTE: Depending on the size of the hood it may be easier to assemble unit on the ground and lift to the roof assembled. This is due to the self tapping screws that need to be fastened down the center of the hood. IMPORTANT: Do not climb on top of hood to fasten screws in the center of the hood.
  • Page 7 Step 5 – Attach SIDE BIRDSCREEN ASSEMBLY TO HOOD SUPPORT ANGLE Figure 4 Fabra hood B #471321 Attach the side bird screen assembly to the hood support angle and base assembly using four 1/4-20 x 1 inch fasteners per screen assembly, see Figure 4. SIDE BIRDSCREEN ASSEMBLY SIDE BIRDSCREEN...
  • Page 8 Step – 7 HOOD RAIL ASSEMBLY NOTE: For easier assembly and lifting elevate hood rail assembly on blocks. Lay out hood rail assembly and hood end angles, see Figure 6. Install 5/16-18 x 1 inch thread cutters (hardware kit # 916687) from underneath, first through hood end angles and second hood rail assembly. NOTE: Use a builders square to ensure the corners of the frame are as close to 90º...
  • Page 9 Step 9 – Install HOOD END PANEL (MALE RIB) Lift the hood end panel (male rib) into place. Use the 1/4-20 x 1 inch thread rolling screws with washer (hardware kit # 916688) to attach hood end panel to the diagonal end panel supports using holes in the hood end panel that line up with holes in the diagonal end panel supports.
  • Page 10 DETAIL E FEMALE RIB HARDWARE KIT # 916689 MALE RIB NO. 12-14 x 1 in. SELF TAPPING SCREW HARDWARE KIT # 916688 1/4 -20 x 1 in. THREAD ROLLING SCREW WITH WASHER HARDWARE KIT # 916691 NO. 12 -11 x 5/8 in. SHEET METAL SCREW (QTY OF 4 PER RIB) HARDWARE KIT # 916690...
  • Page 11 High Wind Rating Anchoring Timber Deck Steel Deck Concrete Deck Option #1 Option #2 Option #3 Option #4 Option #5 Option #6 (Lag Screws) (Thru Bolts) (Self-Drill Screws) (Thru Bolts) (Screw Anchors) (Thru Bolts) Size Per Side Total Per Side Total Per Side Total...
  • Page 12: Typical Installation

    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.

This manual is also suitable for:

Fgr