Bigassfans Pivot User manual

Pivot
INSTALLATION
GUIDE
For help, call 1-877-BIG-FANS
or visit www.bigassfans.com

PRE-INSTALLATION CHECKLIST
Did a structural engineer approve the mounting structure?
See page 5 for Big Ass Fans approved mounting structures.
Are you familiar with the function and use of the safety cable?
See p. 14 for information on properly securing the safety cable.
Will the fan be installed so that the airfoils are at least 10 ft (3.05 m) above the floor?
Will the fan be installed so that the airfoils have at least 2 ft (0.61 m) of clearance from obstructions?
Will the fan be installed so that it is not subjected to high winds, such as from an HVAC system?
Install the fan so that it is ≥1x fan diameter away from a diuser if the fan is at same level or above
diuser. If the fan is below a diuser, install the fan so that it is ≥2x fan diameter from the diuser.
Will the distance between multiple fans be at least 2.5x the fans’ diameter when measured from
the centers of the fans?
If installing the fan on an I-beam, is the upper yoke the correct size?
See page 7 for more information on installing the fan to an I-beam.
If you ordered multiple fans, did you keep the parts for each fan together?
Do you have the correct power circuit for the fan controller?
See page 24 for information on selecting the correct circuit/fuse for the fan controller.
Customer Service: 1-877-BIG-FANS
(International: [phone])

Conforms to ANSI/UL STD 507: Electric Fans
Certified to CAN/CSA C22.2 No.113: Fans & Ventilators
READ AND SAVE THESE INSTRUCTIONS
WARNING AND CAUTION SYMBOL
Indicates a hazard with a medium level of risk that could result in injury or death or damage
to property if not avoided.
ELECTRICAL WARNING SYMBOL
Indicates an electrical hazard with a medium level of risk that could result in death or serious
injury if not avoided.
Installation Guide
July 2016
Rev. N
Original English Instructions
This product was manufactured in a plant whose Management System is certified as being in conformity with ISO 9001.
Legal
Improper installation, delivery, or maintenance, including, but not limited to, any of the following actions by the customer or agent of the
customer will constitute a breach of and will void all warranties:
• Failure to follow the required installation procedures specified in this Installation Guide and in all other documentation supplied with
the fans and related equipment including documentation provided by the manufacturers of the individual fan and control components;
• Failure to follow all relevant codes and ordinances, including, but not limited to, the National Electric Code (United States), applicable
national and local electrical codes, and state and local building codes;
• Failure to follow electrical engineering industry standards regarding the approved method of installing solid-state electrical equipment
having the characteristics of the fans, the fan controls, and their related components, even if such standards are not specifically
referenced in any instructions or literature supplied by Big Ass Solutions or provided by manufacturers.
Pivot is a trademark of Delta T Corporation. All other trademarks used herein are the properties of their respective owners. No part of this
document may be reproduced or translated into a dierent language without the prior written consent of Big Ass Solutions. The information
contained in this document is subject to change without notice. For the most up-to-date information, see the online installation guide at
www.bigassfans.com.
www.bigasssolutions.com/patents ▪www.bigasssolutions.com/warranties

WARNING—TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING:
• The fan must be installed with mounting hardware that is marked to indicate suitability with this model.
Other mounting hardware cannot be substituted.
• Use this unit only in the manner intended by Big Ass Fans.
• Before servicing or cleaning unit, switch power o at service panel and lock the service disconnecting means
to prevent power from being switched on accidentally. When the service disconnecting means cannot be
locked, securely fasten a prominent warning device, such as a tag, to the service panel.
CAUTION: The installation of a Big Ass Fan must be in accordance with the requirements specified in this
installation manual and with any additional requirements set forth by the national electric code (NEC) and
all local codes. Code compliance is ultimately YOUR responsibility! Failure to comply with these codes could
result in personal injury or property damage.
WARNING: The fan controllers contain high voltage capacitors which take time to discharge after removal of
mains supply. Before working on the fan controller, ensure isolation of mains supply from line inputs at the fan
controller. Wait three minutes for capacitors to discharge to safe voltage levels. Failure to do so may result in
personal injury or death. Note: Darkened display LEDs are not an indication of safe voltage levels.
CAUTION: Exercise caution and common sense when powering the fan. Do not connect the fan to a damaged
or hazardous power source. Do not attempt to resolve electrical malfunctions or failures on your own. Contact
Big Ass Fans if you have any questions regarding the electrical installation of this fan.
WARNING: To reduce the risk of fire, electric shock, and injury to persons, Big Ass Fans must be installed with
Big Ass Fan supplied controllers. Other parts cannot be substituted.
CAUTION: When service or replacement of a component in the fan requires the removal or disconnection of a
safety device, the safety device is to be reinstalled or remounted as previously installed.
CAUTION: Do not bend the airfoils when installing, adjusting, or cleaning the fan. Do not insert foreign objects
between rotating fan airfoils.
WARNING: Stay alert, watch what you are doing, and use common sense when installing fans. Do not install
fans if tired or under the influence of drugs, alcohol, or medication. A moment of inattention while installing
fans may result in serious personal injury.
CAUTION: Do not operate fan with a damaged cord or plug. Return fan to an authorized service facility for
examination or repair.
CAUTION: Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings.
Do not route cord under furniture or appliances. Arrange cord away from trac area where it will not be
tripped over.
WARNING: To reduce the risk of electric shock, do not expose to water or rain.
IMPORTANT SAFETY INSTRUCTIONS

CONTENTS
Introduction Thank You 1
About Big Ass Fans 1
About This Fan 1
Pre-Installation Parts and Hardware 2
Tools Needed 3
Fan Diagram 4
Preparing the Worksite 5
Pivot Angle 6
Mounting Structure:
I-Beam
1. Attach Upper Yoke (to I-Beam) 7
Mounting Structure:
Bar Joists
1. Select Proper Angle Irons 8
2. Pre-drill Angle Irons 9
3. Fasten Angle Irons Together (if Span is Longer Than 8 ft) 9
4a. Fasten Single Angle Irons to Roof Structure Mounting Points 10
4b. Fasten Double Angle Irons to Roof Structure Mounting Points 11
5. Attach Upper Yoke (to Angle Irons) 12
Hanging the Fan 1. Attach Balance Joint (to Upper Yoke) 13
2a. Attach Extension Tube (to Balance Joint) 13
2b. Attach Extension Tube (to Upper Yoke) 13
3. Secure Upper Safety Cable 14
4. Attach Main Fan Unit (to Lower Yoke) 14
5. Attach Pivot Joint 15
6a. Attach Lower Yoke (to Pivot Joint) 15
6b. Attach Lower Yoke (to Extension Tube) 16
7. Attach Center Cap 16
Installing Airfoils 1. Attach Winglets 17
2. Position Airfoils and Trim 17
3. Attach Airfoil Retainers 17
Installing Cage 1. Attach Cage Bracket 18
2. Attach Upper Cage 18
3. Attach Lower Cage Sections (to Upper Cage) 19
4. Secure Lower Cage 19
Pivoting the Fan 1. Adjust Pivot Joint and Lower Yoke 20
2. Tighten Bolts on Upper Yoke and Balance Joint 20
Installing Guy Wires 1. Attach Eyebolt to Motor Frame 21
2. Attach Beam Clamp 21
3. Route Guy Wire through Gripple®21
4. Install Remaining Guy Wires 22
Electrical Installation Electrical Installation Safety 23
Electrical Installation Overview 23
Controller Storage 23

Electrical Installation Power Requirements for Fan Controllers 24
Mounting the Wall Controller 24
Input Power Conditioning 24
Conduit and Piping Guidelines 25
Power Wiring Guidelines 25
Grounding 26
Installing the Electronic Programming Module (EPM) 27
Wiring: Early Suppression Fast Response (ESFR) 28
Wiring: 100–125/200–250 V Single-Phase Fan Controllers 29
Wiring: 200–250 V Three-Phase Fan Controllers 30
Wiring: 400–480 V & 575–600 V Three-Phase Fan Controllers 31
Daisy Chaining 32
Wiring the Fan Motor: 9-Lead, Dual Voltage, Wye Motor Configurations 33
Operating the Fan Controller 34
Preventive Maintenance Annual Preventive Maintenance 35
General Preventive Maintenance 35
Annual Maintenance Checklist 36
Troubleshooting Troubleshooting 37
Warranty Return
Instructions
Acknowledgment & Return Instructions 39
Warranty Claim Form Instructions 40
Warranty Claim Form 41
Responsibility Agreement 42
Big Ass Fan Certified
Installers
Check-In Procedure 43
Close-Out Procedure 45

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INTRODUCTION
You’ve made a great choice! Big Ass Fans®are an ecient, cost-eective and seriously cool way to stay comfortable
and save energy all year long. More importantly, everything about your new fan—from the design of the motor to
the angle of the airfoils—is based on extensive research, testing, and innovative engineering. It will keep you and
your space comfortable for years to come.
Any questions or comments? We’d love to talk. Just call 1-877-BIG-FANS (1-877-244-3267) or visit bigassfans.com/
contact-us/.
About Big Ass Fans
Our provocative moniker originated with the massive overhead fans we perfected to bring comfort and energy
savings to large industrial buildings. Today, though, Big Ass Solutions is much more than industrial—and much
more than Big Ass Fans or Big Ass Light. Big Ass means quality, form, and function to solve problems in the built
environment. It means having a herd of engineers on sta and the world’s only R&D facility dedicated to testing air
movement on a grand scale. It means speaking to our customers directly to understand and solve their problems—
if they need air movement, we do it bigger and better. If they need light, we make incredibly bright, long-lasting
LEDs. But mostly it means an insatiable drive to improve, engineer, design, test, re-engineer, re-design, and re-test
until we get it just right. That’s why there’s No Equal™.
About this fan
Fan
diameter
Motor
size
RPM @
60 Hz
Airfoil
length
Fan
weight*
Cage
diameter
Voltage and
Phase
Minimum
circuit
size
Maximum
full load
current
6 ft
(1.8 m)
1.0 hp
(0.75 kW) 180 RPM 28 in. (71 cm)
207 lb
(90 kg)
74.5 in.
(189.2 cm)
100–125 V, 1 Φ 20 A 11.0 A
200–250 V, 1 Φ 15 A 5.5 A
200–250 V, 3 Φ 10 A 3.2 A
400–480 V, 3 Φ 10 A 1.6 A
575–600 V, 3 Φ 10 A 1.3 A
* With 3 ft (0.9 m) extension tube.

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PARTS AND HARDWARE
The fan and controller are shipped in one large box. The fan cage is shipped in a separate smaller box. If you
ordered multiple fans, be sure to keep the components of each fan together.Note: Drawings are not to scale.
Hardware
Beam Clip Hardware
• (4) 1/2-13 x 2” Bolts
• (8) 1/2” Flat Washers
• (4) 1/2-13 Nylock Nuts
Balance/Pivot Hardware
• (4) 1/2-13 x 5” Bolts
• (8) 1/2” Flat Washers
• (4) 1/2-13 Nylock Nuts
Extension Tube Hardware
• (2) 1/2-13 x 4-1/2” Bolts
• (4) 1/2” Flat Washers
• (2) 1/2-13 Nylock Nuts
Lower Yoke Hardware
• (2) 1/2-13 x 4-1/2” Bolts
• (4) 1/2” Flat Washers
• (2) 1/2-13 Nylock Nuts
Main Fan Unit Hardware
• (4) 1/2-13 x 1 3/4” Bolt
• (8) 1/2” Flat Washers
• (4) 1/2-13 Nylock Nuts
Winglet Hardware
• (6) 10-24 x 1/2” Bolts
• (6) 10-24 x 3/4” Barrels
Guy Wire Hardware1
• (1) 3/8-16 x 1” Eyebolt
• (2) 3/8” Washer
• (1) 3/8-16 Nylock Nut
Cage Hardware
• (56) 1/4-20 x 1” Flange Bolt
• (56) 1/4-20 Flange Nut
Cage Clip Hardware
• (4) Cage Clip (Outer)
• (4) Cage Clip (Inner)
Parts
(2) Mount
Brackets
Balance
Joint
Pivot
Joint
Upper
Yoke
(2) Beam Clip
& Spacer
Center
Cap
Lower
Yoke
(6) Airfoil (6) Airfoil
Retainer
(6) Winglet (6) Inner
Trim
(4) Guy Wire, Gripple,
Carabiner, & Wire Rope1
(4) Upper Cage
Section
(4) Lower Cage
Section
(4) Cage Bracket Motor Unit Extension Tube
1. Guy wires are designed to constrain fan’s lateral movement and are only included in some fan packages. Big Ass Fans recommends using guy wires if
the fan’s extension tube is 4 ft or longer, if the fan is pivoted, if the fan is exposed to high winds, or if the fan is close to any building fixtures. Guy Wire
hardware is bagged separately.
2. Safety cable is attached to extension tube.
3. Included in main hardware bag.
• (1) 1/4” Beam Clamp
• (1) 1/4-20 x 1” Eyebolt
• (1) 1/4-20 Hex Nut
• (8) 10-32 x 1/2” Flange Bolt
• (8) 10-32 Flange Nut

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TOOLS
Big Ass Fans recommends gathering the following tools prior to beginning installation.
Electrical Installation
☐ Phillips and Flat Head Screwdriver
☐ 7 mm Nut Driver
☐ 5/16” Nut Driver
☐ Pair of #10 to #14 AWG Strippers
☐ Pair of Medium Channel Locks
☐ Multimeter
☐ Blue (14-18 AWG) #8 Stud Ring Terminals
Mechanical Installation
☐ Standard Wrench Set
☐ Standard Socket Set with Ratchet
☐ Torque Wrench Capable of 40 ft⋅lb (54.2 N⋅m)
☐ Phillips and Flat Head Screwdriver

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4
C
BA
J
D
E
FAN DIAGRAM
A. Safety Cable. A redundant safety feature that secures the fan to the mounting structure. The safety cable must
be installed with the fan.
B. Upper Yoke. Secures the fan to the mounting structure and allows the fan to adjust its center of gravity.
C. Balance Joint. Allows the fan to adjust its center of gravity. If the fan is not going to be pivoted, it is not
necessary to install the balance joint.
D. Extension Tube. Extends the fan from the ceiling.
E. Pivot Joint. Allows the fan to be pointed in dierent directions. If the fan is not going to be pivoted, it is not
necessary to install the pivot joint.
F. Lower Yoke. Allows the fan to be pivoted in dierent directions. Connects main fan unit assembly to mounting
assembly.
G. Motor. See p. 1 for more information.
H. Winglet. Improves fan eciency and air distribution.
I. Airfoil. Provides air movement. The unique patented design provides ecient and eective air movement.
J. Cage. Protects the fan assembly.
F
G
I
H

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PREPARING THE WORK SITE
Before beginning installation, review the mechanical and electrical installation guidelines below.
Mechanical Installation
• A scissor lift or other suitable means for lifting the weight of the fan and at least two installation personnel will
be required.
• Big Ass Fans can only be hung from an I-beam or angle irons. Do not mount the fan to single purlins, trusses, or
bar joists. Consult a structural engineer for installation methods not covered in this manual.
• Adhere to the safety requirements in the table below when selecting the fan location.
Clearance ≥ 2 ft from all fan parts. The fan installation area must be free of obstructions such as lights,
cables, sprinklers, or other building structure.
Airfoil height ≥ 10 ft above the floor
HVAC equipment ≥ 1x fan diameter if at same level or above diuser. ≥2x fan diameter if below diuser.
Fan spacing 2.5x fan diameter, center-to-center
Radiant/IR heaters See the manufacturer’s requirements for the minimum clearance to combustibles.
Electrical Installation
• To reduce the risk of electric shock, wiring should be performed by a qualified electrician! Incorrect assembly
can cause electric shock or damage the motor and the controller!
• The installation of a Big Ass Fan must be in accordance with the National Electrical Code, ANSI/NFPA 70-2011,
and all local codes.
• Refer to the Electrical Installation section in this manual for acceptable unshielded and shielded cable types.
• MC cable (stranded or solid core) may not be used for fan output/motor input leads.
• The motor leads from the fan control to the fan cannot be greater than 400 ft (121.9 m).
• The fan must be visible from its controller unless a suitable means of disconnect is used at the motor.
• The output/motor leads cannot share the same conduit or piping as the AC power supply. AC supply feeds for
one fan controller may share the same conduit with AC supply feeds for one or more controllers.
• AC supply feeds for a fan controller and the output/motor leads for the same fan may not share a conduit.
• AC supply feeds for one fan controller may not share conduit with output/motor leads from one or more
controllers/VFDs.
• All unused conductors that share a conduit with the AC supply feeds must be grounded on both ends.
• Controller output/motor input leads may not share a conduit with any other controller’s output/motor leads.
• Controller output/motor input leads may not share a conduit with any other controller’s AC supply feed.
I-Beam
Angle Iron

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6
PIVOT ANGLE
Pivoting the fan decreases the amount of clearance the fan has from the ceiling and the floor. Before installing the
fan, verify that it will have adequate clearance using the diagram below.
Observe the following safety measures when pivoting the fan:
• To pivot the fan at its maximum angle, a minimum extension tube length of 3 ft is recommended.
• The lowest moving part of the fan must be at least 10 ft (3.05 m) above the floor.
• After the fan is pivoted, there should be adequate clearance between the airfoils and any obstructions.
• Take special precaution to ensure that fan blades will be clear of safety cable and motor cable.
Pivot Angle Diagram¹
2 3 4
0
2
3
1
44
3
2
10 1
(with 3-ft extension tube²)
1. Measurements and angles will vary depending several factors including extension tube length and pivot configuration.
2. To estimate measurements for dierent extension tube lengths, add/subtract the dierence in length. For example, for a 2-ft extension tube, subtract 1 ft
from each measurement.
85” (216 cm)
70” (178 cm)
50” (127 cm)
80” (203 cm)
40” (102 cm)
30’’ (76 cm)
30’’
(76 cm)
20’’ (51 cm)
90’’ (229 cm)
10’’ (25 cm)

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MOUNTING STRUCTURE: I-BEAM
ATTENTION
Big Ass Fans can only be hung from an I-beam or bar joists. See the following page for bar joist mounting
instructions. Consult a structural engineer for installation methods not covered in this manual.
WARNING: The following instructions assume that the customer’s roof structure from which the fan will
be hung is of sound construction, undamaged, and capable of supporting loads of up to 645 lbs (293 kg).
It is the sole responsibility of the customer to verify that the roof structure is adequate for fan installation.
Big Ass Fans recommends consulting a structural engineer prior to fan installation.
CAUTION: It is not recommended to mount a Big Ass Fan from a fabricated I-beam.
CAUTION: Install the spacers only if the thickness of the I-beam flange exceeds 3/8” (1 cm). The mounting
holes on the spacer are closer to one side than the other. Make sure this side is facing the I-beam.
1. Attach upper yoke (to I-beam)
Measure the flange width of the I-beam from which the fan will be hung.
Consult the tables and diagram below to determine what size upper yoke
is included with your fan package. Select the upper yoke mounting holes
that match the flange width of the I-beam.
Secure the upper yoke to the I-beam with the Beam Clip Hardware as
shown. Tighten the bolts to 40 ft·lb (54.2 N·m) using a torque wrench
and 3/4” socket.
Proceed to “Hanging the Fan.”
Beam Clip Hardware:
a. (4) 1/2-13 x 2” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
d. (2) Beam Clip
e. (2) Spacer c
b
a
b
e
d
Small Upper Yoke
13-3/4’’ x 10” (349 mm x 258 mm)
I-Beam Flange Width Upper Yoke Mounting Holes
5” to 6-5/8”
(127 mm to 168 mm) Inner holes
> 6-5/8” to 8-1/4”
(168 mm to 210 mm) Middle holes
> 8-1/4” to 9-7/8”
(210 mm to 250 mm) Outer holes
Large Upper Yoke
18-1/2’’ x 10” (470 mm x 258 mm)
I-Beam Flange Width Upper Yoke Mounting Holes
9-7/8” to 11-3/8”
(250 mm to 289 mm) Inner holes
> 11-3/8” to 13”
(289 mm to 330 mm) Middle holes
> 13” to 14-5/8”
(330 mm to 371 mm) Outer holes
outer holes
middle holes
inner holes
Upper Yoke
(top view)

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1. Select proper angle irons
Follow the table below when selecting angle irons for fan installation. Note: Angle irons and angle iron hardware
are not included with the fan.
Angle iron span
(between mounting points)
Minimum angle iron dimensions
(W x H x T)
Number of angle
irons needed
6 ft (1.8 m) or less 2.5” x 2.5” x 0.25” (6.4 cm x 6.4 cm x 0.6 cm) 2
over 6 ft to 8 ft (1.8 m to 2.4 m) 3” x 3” x 0.25” (7.6 cm x 7.6 cm x 0.6 cm) 2
over 8 ft to 12 ft (2.4 m to 3.7 m) 3” x 3” x 0.25” (7.6 cm x 7.6 cm x 0.6 cm) 4*
*Two pairs of angle irons. Pairs should be placed back to back and fastened in center (see step 3).
MOUNTING STRUCTURE: BAR JOISTS
ATTENTION
If you are installing the fan to an I-beam and have attached the upper yoke, proceed to “Hanging the Fan.”
WARNING: The following instructions assume that the customer’s roof structure from which the fan will
be hung is of sound construction, undamaged, and capable of supporting loads of the fan and its method
of attachment. It is the sole responsibility of the customer to verify that the roof structure is adequate for
fan installation. Big Ass Fans recommends consulting a structural engineer prior to fan installation.
WARNING: Never use beam clamps when mounting the fan to angle irons! Beam clamps are only intended
for I-beam installations.
CAUTION: Do not install the fan from a single purlin, truss, or bar joist.
CAUTION: Unsupported angle iron spans should not exceed 12 ft (3.7 m).
CAUTION: The angle irons must be fastened to the roof structure at each end.
Angle Iron Side View
(see table for dimensions)
Width
Height
Thickness
6 ft (1.8 m) or less
over 6–8 ft (1.8–2.4 m)
over 8–12 ft (2.4–3.7 m)

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3. Fasten angle irons together (if span is longer than 8 ft [2.4 m])
ATTENTION
If the angle iron span is 8 ft (2.4 m) or less, proceed to step 4a on the following page.
If the angle iron span is longer than 8 ft (2.4 m), it is necessary to use double angle irons.
Locate the center of the angle iron length. Drill Ø 9/16” (1.4 cm) hole through the center of the vertical wall of the
angle iron. Drill a total of four angle irons.
Place two drilled angle irons back to back. Fasten the angle irons together with customer-supplied Grade 8
hardware. Align the angle irons to each other and tighten the bolts to 40 ft·lb (54.2 N·m) using a 3/4” socket with
torque wrench.
Repeat step for remaining two angle irons.
Proceed to step 4b.
Grade 8 Hardware (Customer-Supplied):
a. (2) 1/2 -13 Bolt
b. (4) 1/2” Washers
c. (2) 1/2-13 Nylock Nut
2. Pre-drill angle irons
Drill two Ø 9/16” (1.4 cm) holes exactly 5-3/8” (13.7 cm) apart in the centers of two angle irons.
Measure the distance between the mounting points of the roof structure that the angle irons will span. Measure
the same distance on the angle irons and drill Ø 9/16” (1.4 cm) holes through each end of the angle irons. Drill holes
in two angle irons if span is 8 ft (2.4 m) or less. Drill holes in four angle irons if span is greater than 8 ft (2.4 m).
a
b
b
c
Mount with extension tube: 5-3/8’’ (13.7 cm)
Direct mount: 5-1/2’’ (14 cm)
Distance between roof structure mounting points
A
1/2 A
Ø 9/16’’ (1.4 cm)
Side view

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4a. Fasten single angle irons to roof structure mounting points
ATTENTION
If installation requires double angle irons (i.e., span is greater than 8 ft [2.4 m]), proceed to step 4b.
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied Grade 8 hardware.
Do not tighten the hardware until the fan has been mounted to the angle irons.
Proceed to step 5.
Grade 8 Hardware (Customer-Supplied):
a. (4) 1/2-13 Bolt
b. (8) 1/2” Washer
c. (4) 3” Square Washer (BAF Supplied; see diagram)
d. (4) 1/2-13 Nylock Nut
b
a
c
b
d
Square Washer
Thickness:
1/4” (6 mm)
3”
(7.6 cm)
3” (7.6 cm)
Ø 9/16”
(1.4 cm)

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4b. Fasten double angle irons to roof structure mounting points
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied Grade 8 hardware.
The angle irons with fan mounting holes should be positioned on the inside, facing each other. Do not tighten the
hardware until the fan has been mounted to the angle irons.
Grade 8 Hardware (Customer-Supplied):
a. (8) 1/2-13 Bolt
b. (16) 1/2” Washer
c. (8) 3” Square Washer (BAF-Supplied; see diagram)
d. (8) 1/2-13 Nylock Nut
A
b
a
c
b
d
Square Washer
Thickness:
1/4” (6 mm)
3”
(7.6 cm)
3” (7.6 cm)
Ø 9/16”
(1.4 cm)

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12
5. Attach upper yoke (to angle irons)
Secure the upper yoke directly to the angle irons with the Beam Clip Hardware as shown. The angle irons should
be aligned with the outermost holes of the upper yoke. Consult the diagrams below for distances between the
angle irons.
Tighten the bolts to 40 ft·lb (54.2 N·m) using a torque wrench and 3/4” socket. After attaching the upper yoke to
the angle irons, tighten all the bolts securing the angle irons to the roof structure to 40 ft·lb (54.2 N·m).
Proceed to “Hanging the Fan.”
Beam Clip Hardware:
a. (4) 1/2-13 x 2” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
Side View
a
b
c
b
Note: Dashed lines represent angle irons in the above illustrations.
10-7/8”
(27.6 cm)
Small Upper Mount
13-3/4’’ (34.9 cm) x
9-5/8” (24.4 cm)
15-5/8”
(39.7 cm)
Large Upper Mount
18-1/2’’(46.9 cm) x
9-5/8”(24.4 cm)
5.38”
(13.7 cm)
5.38”
(13.7 cm)

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HANGING THE FAN
2a. Attach extension tube (to balance joint)
Fasten the extension tube to the balance joint with the Extension
Tube Hardware. Hand-tighten the bolts.
The fan’s balanced position can change depending on the pivot
angle of the fan or the angle of the roof. For this reason, do not fully
tighten these bolts until the fan is completely assembled.
Proceed to Step 3.
Extension Tube Hardware:
a. (2) 1/2-13 x 4-1/2’’ GR 8 Bolt
b. (4) 1/2’’ Flat Washer
c. (2) 1/2-13 Nylock Nut
ba
b
c
1. Attach balance joint (to upper yoke)
Fasten the balance joint to the upper yoke (already attached to mounting
structure) using the Balance/Pivot Hardware. Hand-tighten the bolts.
The fan’s balanced position can change depending on the pivot angle
of the fan or the angle of the roof. For this reason, do not fully tighten
these bolts until the fan is completely assembled.
Balance/Pivot Hardware:
a. (2) 1/2-13 x 5’’ GR 8 Bolt
b. (4) 1/2’’ Flat Washer
c. (2) 1/2-13 Nylock Nut
ba
cb
2b. Attach extension tube (to upper yoke)
Fasten the extension tube to the upper yoke with the Extension Tube
Hardware.
Before tightening the bolts, allow the extension tube to hang freely and
balance itself. Tighten the bolts to 40 ft·lb (54.2 N·m) using a torque
wrench and 3/4” socket.
Extension Tube Hardware:
a. (2) 1/2-13 x 4-1/2’’ GR 8 Bolt
b. (4) 1/2’’ Flat Washer
c. (2) 1/2-13 Nylock Nut
ba
b
c
DESCRIPTION
REV
jwilliams
XXX
XXX 00-00-00
00-00-00
BAF CO PART #
DragonFish Assy
REV. LEVEL: F.I.
DRAWN
DATE
03-Oct-07
APPVD.
CHK.
DO NOT
SCALE
DRAWING
WT: LBS.
FINISH
RD0023
SHEET 1 OF 1
SCALE: 1:4
DWG. #
D
SIZE
MATERIAL
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
FRACTIONAL ± .015
ANGULAR: MACH ± 1° BEND ± 1°
TWO PLACE DECIMAL ±.015
THREE PLACE DECIMAL ± .005
ZONE REV ECO # DATE APPROVED
ATTENTION
If the fan will not be pivoted, it is not necessary to install the balance joint. Skip this step and proceed to Step 2b.

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14
4. Attach main fan unit (to lower yoke)
CAUTION: When the fan is pivoted, the motor
should never be lower than the gearbox. This
will protect the motor in case the gearbox leaks.
Consider how the fan will eventually be pivoted
and position the lower yoke accordingly.
Attach the main fan unit to the lower yoke with the Main
Fan Unit Hardware.
Tighten the bolts to 40 ft·lb (54.2 N·m) using a torque
wrench and 3/4” socket.
Main Fan Unit Hardware:
a. (4) 1/2-13 x 1-3/4” GR 8 Bolt
b. (8) 1/2’’ Flat Washer
c. (4) 1/2-13 Nylock Nut
c
a
b
b
3. Secure upper safety cable
ATTENTION
The saftey cable is a crucial part of the fane and must be installed correctly. If you have questions, call
Customer Service for assistance.
Secure the safety cable to the I-beam or angle iron by wrapping the safety cable around it and securing the looped
ends with the shackle. The cable must be drawn tightly around the I-beam or angle iron, leaving as little slack as
possible. If possible, the shackle should be on the topside of the I-beam or angle iron. Securely tighten the shackle.
Shackle
I-Beam Mount Angle Iron Mount