1.
CAUTION!
This fan contains rotating parts and requires special service. Appropriate safety precautions
should be taken during installation, operation and maintenance.
2.
WARNING!
Do not install or operate this fan in an environment or atmosphere where combustible or
flammable materials, gasses or fumes are present, unless it was specifically designed and manufactured
for use in that environment. Explosion or fire can result. Explosive, corrosive, high temperature, etc.
conditions may require special construction, inspection and maintenance. It is necessary to observe the fan
manufacturer’s recommendations and limitation concerning the type of material to be handled by the fan and
its application in special conditions.
3. When ventilator is designed to be mounted on a curb, the curb should be securely installed prior to fan
installation.
4. A damper, if used, should be securely mounted within the curb or wall in a manner that allows free and
unobstructed operation.
5.
CAUTION!
All electrical work must be done in accordance with local and/or national electrical codes as
applicable. If you are unfamiliar with methods of installing electrical wiring, secure the services of a qualified
electrician.
6.
WARNING!
This product must be grounded.
7.
DANGER!
Make sure power is turned off and locked in the
OFF
position at the service entrance before
installing, wiring or servicing fan.
8.
CAUTION!
Before wiring the motor, check the supply voltage against the motor nameplate voltage. High or
low voltage can damage the motor and void the motor warranty.
9.
WARNING!
Be sure to keep all wiring clear of rotating or moving parts.
10.
WARNING!
Before starting the fan, turn the wheel to assure it rotates freely. If needed, adjust the wheel/shaft/
motor position as required to achieve necessary clearances.
11.
WARNING!
Check all setscrews and keys. Tighten as necessary prior to fan startup.
12. On roof units, anchor the fan securely to the curb. Anchoring through the vertical portion of the curb cap
flange is recommended. Use a minimum of four lag bolts or other suitable fasteners.
13. Due to the general nature of its applications, the basic air mover is available with protective guards and/or
other devices for required operating safety as with most installations of rotating machinery. Before operating
the basic unit in any of its applications determine requirements for such guards and/or devices needed
for protection against accidental contact with moving parts or against injury to nearby personnel or critical
equipment due to accidental rupture of fast moving parts.
START-UP:
Lock out the power source.
Tighten all bolts and setscrews securely.
NOTE THAT ALL BOLTS AND SETSCREWS SHOULD BE TIGHTENED
AFTER TWO DAYS OF INITIAL OPERATION.
Clearance should be checked all around between wheel or propeller tips and the housing before starting up. The
wheel or propeller should not strike the housing.
No initial lubrication is required. Motors have been pre-lubricated by motor manufacturer.
Arrows to show direction of rotation and airflow are attached to the fan housings.
After the electrical connections are completed, apply just enough power to start the impeller as indicated by the
directional arrows on the unit. If the impeller is turning the wrong direction, it will not deliver rated airflow and the motor
connections must be altered to correct rotation.
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