FloAire USI-FA - Manual (Page 2)

area should be reasonably level and drained or ditched
to prevent accumulation of water. Fencing and lighting
for security are desirable. Roads or aisles for portable
cranes and hauling equipment are needed. Consider
the use of drift fencing to minimize accumulation of
blowing snow or dirt.
The following fans may be stored outdoors, if dry indoor
storage space is not available:
a. Fans intended for outdoor use that are crated in
wood.
b. Wall fans installed in wall housings.
All fans must be supported on wooden blocks or timbers
above water or normal snow levels. Provide enough
blocking to prevent settling into soft ground. Fans
should be set in place using the directional arrow
markings on the crate as a guide.
Locate pieces far enough apart to permit air circulation,
sunlight, and space for periodic inspection. Place all
parts on their supports so that rain water will run off, or
to minimize water accumulation. Do not cover parts
with plastic film or tarps-these cause condensation of
moisture from the air passing through heating and
cooling cycles.
Fan wheels and propellers should be blocked to prevent
spinning caused by strong winds.
INSPECTION AND MAINTENANCE
DURING STORAGE
Inspect fans and accessories at least once per month,
while in storage. Log results of inspection and
maintenance performed. A typical log entry should
include the following:
a. Date
b. Inspector’s Name
c. Name of Fan
d. Location
e. Condition of Paint or Coating
f. Is moisture present?
g. Is dirt accumulated?
h. Corrective steps taken?
If moisture or dirt accumulations are found on parts, the
source should be located and eliminated. Fans should
be rotated at each inspection by hand ten to fifteen
revolutions to redistribute the motor and bearing
lubricant.
If paint deterioration begins, consideration should be
given to touch-up or repainting. Fans with special
coatings may require special techniques for touch-up or
repair.
Machined parts coated with rust preventive should be
restored to good condition promptly if signs of rust
occur. The most critical items are pulleys, shafts and
bearing locking collars. At the first sign of rusting on any
of the above parts, remove the original rust preventive
coating with petroleum solvent and clean lint-free cloths.
Polish any remaining rust from surfaces with crocus
cloth or fine emery paper and oil. Do not destroy the
continuity of the surfaces. Wipe clean with lint-free
cloths and recoat surfaces evenly and thoroughly with
Tectly 506 (Ashland Oil Company) or equal. For hard to
reach internal surfaces or for occasional use, consider
using Tectly 511M Rust Preventive or WD40 or equal.
REMOVING FROM STORAGE
As fans are removed from storage to be installed in their
final location, they should be protected and maintained
in similar fashion, until the fan equipment goes into
operation.
INSTALLATION
1. CAUTION! This unit has rotating parts and safety
precautions should be exercised during installation,
operation and maintenance.
2. WARNING! Do not use in hazardous environments
where fan’s electrical system could provide ignition to
combustible or flammable materials, unless the unit
is specifically built for hazardous environments.
3. The fan should be mounted on a solid foundation
equipped with anchoring devices (such as anchor
bolts). Level the fan on the foundation, shimming
where necessary. Anchor the fan securely to the
foundation. If vibration isolators are used, these
should be installed between the fan and the
foundation. When mounted on suspended platforms
adequate cross bracing will be required.
4. Check pulley alignment and belt tension. Belt should
deflect ½" to 3/4" (13mm to 19mm) when depressed
by hand midpoint between pulleys.
5. CAUTION! Before proceeding, make sure electrical
service to fan is locked in “OFF” position.
6. All wiring should be in accordance with local
ordinances and the National Electric Code.
7. WARNING! Check voltage at the fan to see if it
corresponds with the motor nameplate. High or low
voltage can seriously damage the motor. Extra care
should be taken when wiring two speed motors since
improper connections will damage motor and void
motor warranty.
8. Apply power momentarily and compare the rotation
of the impeller with directional arrow on fan. In the
case of three phase motors, the direction can be
reversed by interchanging any two of the three motor
leads. In the case of single phase motors, the
reversing instructions appear on the wiring diagram
in the motor wiring compartment.
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