Larson Electronics EPF-24 Series Manual

EPF-24 SERIES
Larson Electronics, LLC Phone: Fax: [phone] www.larsonelectronics.com
1 of 2
EPF-24 Instruction Guide
24" Electric Explosion Proof Fan
Thank you for your purchase of the Larson Electronics EPF-24 series Explosion Proof Fan. This fan is
completely assembled, tested and ready for installation when shipped from the factory. Please follow the steps
below in order to operate and maintain this product.
IMPORTANT
READ CAREFULLY BEFORE OPERATING THIS FIXTURE. SAVE THESE INSTRUCTIONS FOR FUTURE
REFERENCE. THE EPF-24 MUST BE OPERATED IN ACCORDANCE WITH NATIONAL ELECTRICAL CODE AND ALL
APPLICABLE LOCAL CODES.
FOR PERSONAL SAFETY, ALWAYS CONFIRM THE RATING OF ANY KNOWN HAZARDOUS OR POTENTIALLY
HAZARDOUS LOCATION WHERE THE FAN IS TO BE USED.
WARNING: TO PREVENT IGNITION OF A HAZARDOUS ATMOSPHERE, THE SUPPLY CIRCUIT SHOULD BE
DISCONNECTED WHEN INSTALLING OR PERFORMING ANY MAINTENANCE ON THIS UNIT.
WARNING: WHEN INSTALLING THIS FAN IN HAZARDOUS LOCATIONS, CHECK THE OPERATING
TEMPERATURE LIMITS PRIOR TO INSTALLATION TO BE SURE IT CONFIRMS TO THE ENVIRONMENTAL
TEMPERATURE RESTRICTIONS AND NEC CLASSIFICATIONS. CHECK THE NAMEPLATE FOR TEMPERATURE (T)
RATINGS.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT US ANY SOLID-STATE SPEED
CONTROL DEVICE WITH THESE FANS.
WARNING: OPERATE FAN ONLY AT THE VOLTAGE OF YOUR SPECIFIC SUPPLY CIRCUIT.
WARNING: SUBSTITUTE COMPONENTS MAY IMPAIR EXPLOSION PROOF SAFETY.
WARNING: BEFORE SERVICING OR CLEANING THE UNIT, SWITCH THE POWER OFF AT THE SERVICE PANEL
AND LOCK SERVICE PANEL TO PREVENT POWER FROM BEING SWITCHED ON ACCIDENTALLY.
WIRE DIAGRAM
ALL ELECTRICAL WORK SHOULD BE PERFORMED BY A QUALIFIED ELECTRICIAN.
Be sure the voltage and cycles shown on the motor nameplate correspond to the power supply. Check product
nameplate for Ratings and Approvals. This fan is rated for single phase 115V or 230V AC 60Hz operation.
Refer to the diagram below, also located inside the terminal box cover or on the nameplate. BE SURE TO
CONNECT FOR THE VOLTAGE, FREQUENCY AND PHASE TO BE USED.
Before activating fan, inspect to be sure
that there are no obstructions or debris
that would interfere with the propeller.
Check all fasteners for tightness.
For pre-wired versions, simplified
connections like shown below will be available
via a junction box on the back of the fan motor.
[phone]

EPF-24 SERIES
Larson Electronics, LLC Phone: Fax: [phone] www.larsonelectronics.com
2 of 2
MOUNTING
The fan includes the mount chosen upon purchase, pre-installed from factory.
Mount the fan in the desired location and run power to the unit. A sturdy surface or pole mount should be
prepared and capable of handling the load of the unit. Ensure all safety requirements are followed for the
hazardous area. Attach safety cable between mount point and frame.
The fan head can be adjusted by loosening the two bolts near the adjustment point. Tighten the bolts once the
desired tilt is achieved.
LUBRICATION
This motor is equipped with pre-lubricated ball bearings. The original supply of lubricant is kept free of dirt, grit
or outside contamination by the bearing closures and does not require replenishment for the life of the bearing
under normal operating conditions.
MAINTENANCE
It is recommended that you implement a standard monthly or more frequent preventive maintenance
schedule. Safety requires a thorough visual examination of the unit for physical damage that might cause a
spark or result in the ignition of hazardous atmospheres.
Maintenance includes a careful examination to ensure at least:
A. The Cable is not frayed and is gripping tightly in all points of cable contact.
B. The Cable Jacket is completely intact and that no internal conductors or conductor insulation
is exposed.
C. The Connection Box is not cracked, broken or breeched.
D. The Cord Plug is not cracked or damaged and the Ground Post is intact.
Keeping blades clean and free of material splatter, overspray, and debris during usage will ensure the
maximum life of the fan. An accumulation of dirt may cause blade vibration and motor overload. Occasionally
check tightness of blade set screws.
NOTE: Handle the propeller carefully as it is factory balanced and aligned to ensure smooth operation.
TROUBLESHOOTING
Refer to the guide below or contact the manufacturer if the fixture does not function properly.
Is the correct line voltage being supplied?
Is the fan properly grounded?
Make sure installed power switch is functioning properly (if applicable).
These instructions may not cover all details or variations of this product for your equipment or installation
requirements. Should further information not covered by these instructions be required, please contact Larson
Electronics at 1- for further assistance.
Please visit LarsonElectronics.com for Warranty and Return information.
[phone]
877-348-9680
THESE INSTRUCTIONS MAY NOT COVER ALL DETAILS OR VARIATIONS OF THIS PRODUCT FOR YOUR EQUIPMENT OR INSTALLATION REQUIREMENTS.
SHOULD FURTHER INFORMATION NOT COVERED BY THESE INSTRUCTIONS BE REQUIRED, PLEASE CONTACT LARSON ELECTRONICS BY EMAIL AT
SAL[email protected] OR BY PHONE AT 1-877-348-9680 FOR FURTHER ASSISTANCE.
PLEASE VISIT LARSONELECTRONICS.COM FOR WARRANTY AND RETURN INFORMATION.