COMMERCIAL PRODUCT WARRANTY
AIRMASTER® FAN COMPANY warrants to the original user that the equipment shipped will be the kind and quality described in the specifications and to be free from defects in material and workmanship under normal use and service. Liability for defects of material and workmanship in the motor are excepted from the AIRMASTER® Warranty, but are covered in the warranty of the motor manufacturer. AIRMASTER® FAN COMPANY will rectify defects in material or workmanship within one year from date of shipment by the factory, provided the Company receives immediate written notice of such defects and such claims are substantiated to its satisfaction. Correction of such defects by repair or replacement at company's option, F.O.B. the Company's factory, shall constitute the sole obligation under this warranty.
This warranty does not include accessories or any part of the unit which has subjected to misuse, neglect, accident, or damage caused by flood, fire or act of God.
UNDER NO CIRCUMSTANCES IS AIRMASTER® FAN COMPANY liable for labor costs incurred in installation or removal for repairs. UNDER NO CIRCUMSTANCES IS AIRMASTER® FAN COMPANY LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES DUE TO FAILURE TO MEET THE CONDITIONS OF ANY WARRANTY. NO LIABILITY OF ANY NATURE IS ASSUMED BY THE COMPANY FOR FAILURE TO MAKE DELIVERY DUE TO ANY ACT OR CONDITION BEYOND ITS REASONABLE CONTROL. THIS WARRANTY DOES NOT APPLY TO CONSUMER PRODUCTS, SEE CONSUMER PRODUCT WARRANTY BELOW.
LIMITED ONE-YEAR CONSUMER WARRANTY
On products intended for personal, family or household purposes, the following limited warranty applies instead of the COMMERCIAL Warranty. AIRMASTER® warrants to the original consumer purchaser that this product is free from defects in material and workmanship for one year from provable date of purchase. AIRMASTER will repair or replace, at its option, defective parts at no charge, within this warranty period, provided the product is returned freight prepaid with proof of purchase date to: AIRMASTER® FAN COMPANY, 1300 FALAHEE RD., JACKSON, MI 49203. The obligation under this warranty does not include responsibility for any transportation expenses. PRODUCT WILL BE RETURNED TO THE CONSUMER FREIGHT COLLECT.
This warranty is void as to any part that has been improperly installed, overloaded, abused or altered in any manner. This warranty does not cover incidental or consequential damages arising from any defect of this product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
No one is authorized to assume any liability on behalf of AIRMASTER® or impose any obligation on it in connection with the sale of any product other than as outlined above.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
(PRICES SUBJECT TO CHANGE WITHOUT NOTICE)
Due to AIRMASTER®'s commitment to Total Quality Management,
technical specifications are subject to change without notice.
Understanding Hazardous Location Fans & Motors
Many areas do or may contain gas, vapor or dust in explosive quantities. These areas must be considered hazardous when selecting a fan. To exhaust these areas a fan with an explosion proof motor must be used, many explosions have been caused by exhausting a potentially explosive area with a fan and motor not designed for
use in hazardous areas.
- Locations Which May Contain Explosive Gas, Vapor or Dust in the Atmosphere
- Oil Refineries Painting Operations
- Welding Shops
- Chemical Plants
- Grain Elevators
- Coal Mines
- Grain Mills
- Battery Charging Areas
- Chemical Storage
- Paint Storage
- Dry Cleaners
- Laboratory Hoods
- Feed Mills
- Flour Mills
- Electroplating Operations
Most airborne dusts are flammable and potentially explosive, and should be treated as such. Locations containing any amounts of explosive material, no matter how slight, require the use of a fan with a motor rated for hazardous locations and spark resistant construction. Hazardous locations may include, but are not limited to the above list.
All Airmaster fans with explosion proof motors are rated for Class I, Group D, Class II, Groups F & G atmospheres. Some may be rated for Class I, Group D, Class II, Groups E, F & G, they will be listed in the catalog. An explosion proof motor is designed to withstand an explosion of a specific gas or vapor which may occur within it, and prevent the ignition of the gas or vapor which may be surrounding the motor casing. Always be sure that the motor classes and group ratings match the requirements of the hazardous location. Fans and air circulators with explosion proof motors must be hard wired using explosion proof components and in accordance with all local, state, and national codes. Equipment with explosion proof motors should never be supplied with a cord and plug.
Plugging a piece of equipment into a wall outlet can cause a spark, which could lead to an explosion.
National Electrical Code Explosive Atmosphere Classifications
Class I
Group A: Acetylene
Group B: Butadiene, ethylene oxide, hydrogen, propylene oxide, manufactured gasses containing more than 30% hydrogen by volume.
Group C: Acetaldehyde, cyclopropane, diethyl ether, and ethylene.
Group D: Acetone, acrylonitrile, ammonia, benzene, butane, ethanol, ethylene dichloride, gasoline, hexane, isoprene, methane (natural gas), methanol, naphtha, propane, styrene, toluene, vinyl acetate, vinyl chloride, xylene.
Class II
Group E: Aluminum, magnesium, and other metal dusts with similar characteristics
Group F: Carbon black, coke or coal dust
Group G: Flour, starch or grain dust
Class III
Easily ignitable fibers, such as rayon, cotton, sisal, hemp, cocoa fiber, oakum, excelsior and other fibers of similar nature.
The Classification of a Hazardous Environment
The classification of a hazardous atmosphere requires considerable skill and judgment, especially the extent of the hazardous areas.
Class I, Division I: hose areas in which hazardous concentrations of flammable gasses, vapor or liquids exist, either continually or periodically during normal operating conditions. In these areas the National Electric Code requires the use of explosion proof motors at all times.
Class II, Division II: Those areas in which flammable gasses are handled, processed or used. In these locations the liquid or gas is normally confined in enclosed containers or systems, from which they can escape only in the event of accidental breakdown or abnormal operations. In these areas the National Electric Code requires only that the motors must not have sparking internal contacts (such as centrifugal switches). Normally, three phase TEFC motors are suitable for operation in these atmospheres.
Explosion proof motors are generally not available for Class I, Group A and Class I, Group B locations. When these conditions are encountered, it is usually necessary to isolate the motors from the hazardous location. Also, it is possible to substitute hydraulic or pneumatic motors in place of electric type. All Airmaster axial flow fans and air circulators with explosion proof motors have a cast aluminum propeller or a fabricated propeller with aluminum blades.
Note: All fans must be installed in accordance with all applicable national, state, and local electrical and mechanical codes.