Humongous Fan 51512 User manual

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
1
Humongous Fan
Installation Guide
Do not discard these instructions, save for further use
51512, Oct. 2014

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
2
Table of Contents
1. Safety Precautions 3
2. Parts List 4
3. Mounting Scenarios 5
4. Electrical Installation 8
5. Blade Installation 10
6. Operating Instructions 11
7. Periodic Maintenance 12
8. Troubleshooting 12
9. Warranty 13

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
3
SAFETY PRECAUTIONS
READ, FOLLOW AND SAVE THESE INSTRUCTIONS!
1. Only use this fan in a manner intended by the manufacturer
namely as a vertical, ceiling mounted, air moving device. Any
attempt to use this fan for any other purpose without expressed,
written permission from The Humongous Fan Company will
invalidate the warranty.
2. Before servicing or cleaning the fan, all sources of electrical
power must be disconnected. The user should take means to
ensure that the device is not accidentally energized while being
serviced, such as attaching a lockout tag (not included) to the
power supply.
3. If a safety device is removed prior to servicing the fan, it must
be properly reinstalled before re-energizing the fan.
4. Do not replace any parts to this fan with anything other than
authentic Humongous Fan parts. This includes both
mechanical and electrical components.
5. All electrical wiring must conform to the National Electric Code
and all local codes. Code compliance is ultimately the
responsibility of the installer.
6. The fan must be installed in a manner such that there is no
chance for the fan blades to strike a person or object while in
operation.
7. The fan and any supplemental devices must be installed by
qualified personnel. The Humongous Fan Company will not be
responsible for personal injuries or damage to property or
equipment caused by improper installation.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
4
8. The supplemental mounting kit must be installed in a manner
as laid out in this manual. All safety devices and bracing cables
must be used.
9. Integrity of the structure to which the fan is mounted is the sole
responsibility of the installer. Consult a structural engineer if
there is any question relating to the integrity of the structure.
PARTS LIST
BEFORE ATTEMPTING TO INSTALL YOUR HUMONGOUS FAN,
PLEASE VERIFY THAT YOU HAVE THE FOLLOWING:
1. Motor/Hub Assembly
2. Blade Mounting Hardware Kit, containing:
a. 16 ea., 1/4-20 X 1” UNC Grade 5 Bolts
b. 16 ea., 1/4”Split Lock Washers.
3. Safety Cable Kit, containing:
a. 1 ea., 10 Ft. (3.1m) of 1/8” Galvanized Steel Cable
b. 4 ea., 1/8” Cable Clamps
4. 1 ea., Fan Controller
5. 8 ea., Fan Blades
If you are lacking any of the above items, please call us at 216-663-8830.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
5
MOUNTING SCENARIOS
The Humongous Fan is designed to be mounted to either a series of
braces spanning two joists or, directly to an I-beam. The mounting
must be sufficiently secure to absorb up to 250 ft-lbs (340 N-M) of
torque, plus an appropriate safety factor. All bolts must be torqued
to the following values:
Table 1
Joist Mounting Scenario
In general, mounting a Humongous Fan between joists is easier than
clamping to a beam, especially if the joists are close together.
Additionally, this type of mounting offers additional flexibility for fitting
the fan between lights and avoiding the flickering caused by fan
blades passing below a lighting fixture.
Since the motor/hub assembly is the heaviest part of the fan
(weighing as much as 75 lbs/33KG), it will take two people to mount.
Product
Torque [Ft.Lb]
Torque [N.m]
1/8” Wire Rope Clamps
4.5
6
1/4-20 UNC Grade 5 Bolts
8.5
12
3/8-16 UNC Grade 8 Bolts
44
60
1/2-13 UNC Grade 8 Bolts
106
143
The above values are based upon using clean, zinc
plated, and non-lubricated fasteners.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
6
Below is a typical installation mounting across joists.
Figure 1
As the span between joists is increased, heavier material must be
used. The chart below indicates the minimum material cross sections
for various spans. Please note the acceptable materials listed require
the use of two sections spaced on 14” centers to create the mounting
braces. A single angle, or section, should never be used as a beam.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
7
Table 2
Joist Spans and Suggested Support Materials
Span
Acceptable Materials
6' or less
2 1/2" x2 1/2"x1/4" Angle Iron
PowerStrut PS 210 or Equivalent
8' or less
3"x3"x1/4" Angle Iron
10' or less
3 1/2x3 1/2x1/4" Angle Iron
PowerStrut PS 200-2T3 or Equivalent
12' or less
3"x3"x1/4" Square Tube, 4”x4”x1/4” Angle Iron
Above 12'
Consult Structural Engineer
Support materials, including hardware to mount to support materials,
are not normally provided with the fan. Use only Grade 8 fasteners
for mounting the fan and support materials. Use of PowerStrut (or
equivalent) products is generally encouraged as it can speed
installation time and limit the weight of steel to be installed overhead.
The safety cable must be routed between the legs of the gearmotor
base and over the support material as shown. The safety cables
must be secured with the four cable clamps provided.Make sure the
cable clamps are installed per the instructions on their packaging.
Once the fan hub is installed, the user must install the breather valve
on the gearbox as shown in Figure 2. Once the breather valve is
installed, you may not move the fan without replacing the plug.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
8
Figure 2
Once the fan motor/hub assembly is installed, electrical installation
can proceed. Do not attempt to install fan blades until the electrical
installation is complete and the system is tested.
ELECTRICAL INSTALLATION
For electrical installation, please refer to the manual provided with the
control cabinet.
For the motor, please refer to the following connection diagrams. For
Low Voltage Connection see Motor Junction Box Figure below.
Remove this plug. Replace with
the breather element.

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
9
For the High Voltage Connection, see Motor Junction Box Figure
below:

23103 Miles Road [phone]
Cleveland, OH 44128 www.humongousfan.com
10
BLADE INSTALLATION
Once the electrical installation is completed and tested, the blades
can be installed. The blades have a solid spar which is tapped to
accept two ¼-20 bolts. The spars have a sliding fit into the spar tubes
and may require some light lubrication to assemble. Do not hammer
the blade into the spar tube as you could damage the blade or the
gearmotor bearings. Gentle twisting should be sufficient to position
the blades properly.
Figure 8 - Blade Installation
The blades must be installed such that the aluminum blade
extensions are below the bottom of the fan hub as shown. Once the
blades are positioned properly, they are to be secured with the ¼-20
bolts and lock washers provided. The ¼-20 bolts must be torqued to