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 impellers 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. Fan impellers 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 tech-
niques 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 Tectyl 506 (Daubert
Chemical Company) or equal. For hard to reach internal surfaces or
for occasional use, consider using Tectyl 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.
BEFORE INSTALLING CHECK FASTENERS
Before installing and before initial operation of the fan tighten all
mounting hardware and set screws to include bearing set screws. See
table recommended tightening torque located in Maintenance section.
INSTALLATION
Before installation see Section on Wall Opening
Requirements (W.O.) before proceeding with 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 the
fan’s electrical system could provide ignition to combustible
or flammable materials, unless the unit is specifically built for
hazardous environments.
3.
WARNING!
If gases, other than clean air, are to be exhausted
using the fan, then the user bears the responsibility of determin-
ing that the fan is appropriate and safe for the application.
4. Provide a square opening in the wall equal to the outside
dimensions of the fan. It is preferable to frame in the opening
with 2 x 6 material, or similar suitable material or metal channels
adequate for support of fan.
5. Slide the fan into the framed opening in the wall. Securely fasten
with bolts or screws provided by the installer.
7
.
WARNING!
A distance of at least one and one-half times the
diameter of the fan should be allowed between the fan inlet or
discharge opening and any adjacent wall or large obstruction.
8.
CAUTION!
Guards must be installed when the fan is within reach
of personnel or within eight (8) feet (2.5 m) of working level or
when deemed advisable for safety.
9.
CAUTION!
Before proceeding, make sure electrical service to the
fan is locked in the “
OFF
” position.
10. All wiring should be in accordance with local ordinances and the
National Electrical Code.
11.
BEFORE APPLY POWER
check all fasteners for tightness; par-
ticularly in the impeller hub. Turn the impeller by hand to make
sure it is in alignment with the orifice and fan blades do not strike.
12.
WARNING!
Check voltage being supplied to the fan to see
that it corresponds with the motor nameplate voltage; high or
low voltage can seriously damage the motor. On multi-voltage
motors, check motor terminal connections to make sure motor
is internally connected for voltage being supplied. Motor wiring
diagram is located on the side of the motor or in the motor wiring
compartment for ECM motors go to back of this form for wiring
diagrams. Extra care should be taken when wiring two speed
motors since improper connections will damage motor and void
motor warranty.
13. Apply power momentarily and compare the rotation of the
impeller with the directional arrow on fan. (See Figure 1 Propeller
Rotation for propeller rotation and air flow direction.)
WARNING!
Operation in the wrong direction will deliver air but will overload
the motor to the extent of blowing fuses and seriously damaging
the motor. In the case of three phase motors, the direction can
be changed by interchanging any two of the three motor leads.
In the case of single phase motors, the reversing instructions will
appear on the wiring diagram in the motor wiring compartment.
14. When installing a damper that will be used to open against
airflow of the fan it is necessary that a time delay switch is used.
The time delay will be used between the power source and the
fan motor. The delay should allow for the damper to open in the
full position before power is supplied. It is recommend that the
damper be 1.5x the distance (M) from the fan shown in chart for
wall mounting.
PROPELLER ROTATION
AIRFLOW
AIRFLOW
Page 2
EXHAUST
SUPPLY
FIGURE 1
Summary of Contents for 924738
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