UL 507 BULLETIN

Abstract

These requirements cover: <br>a) Fans and blowers that circulate air, such as desk, ceiling-suspended, and hassock fans; <br>b) Fans and blowers that ventilate air, such as attic, whole-house window, through wall, and direct discharge fans; <br>c) Ducted fans and blowers that exhaust air to the outside of a building structure, such as in-line, wall insert and ceiling insert fans; <br>d) Dryer type fans used for drying carpets or floors; <br>e) Household and commercial blower inflator type fans except as noted in 1.8(k); <br>f) Evaporative coolers; <br>g) Evaporative cooler replacement pumps; <br>h) Air-filtering appliances; <br>i) Component fans; <br>j) Low voltage component fans; <br>k) Residential cooking area fans, such as rangehoods and downdrafts; <br>l) Hand dryers without heater; and <br>m) Recirculating and blending units except as noted in 1.8(h). <br>These products are rated 600 volts or less and are intended to be employed in accordance with the National Electrical Code, ANSI/NFPA 70. <br>These requirements do not cover: <br>a) Air heaters incorporating fans, heating-ventilating units, or blowers comprising components of such equipment as furnaces, mechanical-refrigeration equipment, or air conditioners; <br>b) Fusible links, and the like, provided to disconnect a fan or close shutters in the event of fire; <br>c) Fans for use in cooking areas when the fan is intended for other than household use; <br>d) Fans intended to be used in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70; <br>e) Fans intended to be installed over solvents or chemically flammable liquids or vapors; <br>f) Fans located in chemically corrosive environments; <br>g) Humidifiers; <br>h) Fans intended to move heated or conditioned air; <br>i) Heated hand dryers; <br>j) Ionizers, products with ionization features, or electrostatic air cleaners; <br>k) Blower or inflators intended for use with inflatable bouncing toys or similar children's products. <br>l) Microwaves, ventilating or otherwise; <br>m) Ducted or non-ducted heat recovery ventilators; <br>n) Deodorizers and air fresheners.