®
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.
Model DDF directional destratification fans provide improved comfort
and reduced energy costs by efficiently mixing air from floor to ceiling
to improve temperature uniformity. Fans are ideal for a variety of
commercial, industrial and institutional applications, especially in
buildings with high ceilings. Features include an aerodynamically
optimized housing, high efficiency corrosion resistant propeller with
aluminum blades, electronically commutated (EC) Vari-Green
and 10 foot wiring pigtail with plug. Universal mounting bracket
includes steel hanging cable and secondary steel safety cable with
Gripple
®
installation hardware.
Important Safety Instructions
Read and save these instructions.
1. Only mount fan to building structure.
2. Read and follow all instructions, cautionary markings
and make sure power source conforms to the
requirement of the equipment.
3. Follow all local electrical and safety codes, as
well as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA) in the
United States, including fire rated construction.
Ground motor in accordance with NEC Article 250
(grounding).
4. Do not use an extension cord with this fan.
5. Do not kink power cord or allow it to contact oil,
grease, hot surfaces, sharp objects or chemicals.
Replace worn or damaged cord immediately.
WARNING
Always disconnect, lock and tag power source before
servicing. Failure to disconnect power source can
result in fire, shock or serious injury. Always unplug
the power cord.
Do not insert foreign objects in between rotating fan
blades.
To reduce the risk of electric shock, do not expose to
water or rain.
Do not use general purpose fans in flammable,
explosive, chemical-laden, or wet or rainy
atmospheres. Do not attach fan to ductwork.
®
Directional Destratification Fans
motor,
®
WARNING
To reduce the risk of fire, electrical shock, or injury to
persons, observe the following:
a. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer.
b. Before servicing or cleaning unit, switch power off
at service panel and lock the service disconnecting
the 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.
c. Do not use this fan with any solid-state speed
control device.
d. Do not use replacement parts that have not been
recommended by the manufacturer.
e. Installation work and electrical wiring must be
done by a qualified person(s) in accordance with
all applicable codes and standards, including fire-
rated construction.
f. When cutting or drilling into wall or ceiling, do not
damage electrical wiring and other hidden utilities.
Directional Destratification Fans
Document 486130
Model DDF
1
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