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UL 705

7th Edition, February 13, 2018

Complete Document

UL Standard for Safety Power Ventilators

Includes all amendments and changes through Revision Page(s) , February 13, 2018


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Product Details:

  • Revision: 7th Edition, February 13, 2018
  • Published Date: February 13, 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 109
  • ANSI Approved: Yes
  • DoD Adopted: Yes

Description / Abstract:

These requirements cover power ventilators of the roof-and wall-mounted types and duct fans of the straight-through type intended for commercial or industrial use, residential fans intended for heated and conditioned air and for connection to permanently installed wiring systems in accordance with the National Electrical Code, NFPA 70.

These requirements also cover dryer exhaust duct power ventilators (DEDPV) for single residential dryers.

These requirements do not cover the following:

a) Ventilating equipment such as attic, wall-insert, ceiling-insert, household hood, window fans, or canopy fans or blowers;

b) Air-moving equipment with integral air-tempering means;

c) Dryer type fans used for drying carpets or floors;

d) Household and commercial blower inflator type fans;

e) Evaporative coolers; Evaporative cooler pumps, including retrofit pumps;

f) Air filtering appliances;

g) Deodorizers and air fresheners;

h) Component fans;

i) Low voltage component fans;

j) Fans and blowers that circulate air, such as desk, ceiling-suspended, and hassock fans;

k) Ventilators rated more than 600 volts;

l) Ventilators employing universal motors rated more than 250 volts;

m) Air heaters equipped with fans;

n) Draft fans for furnaces;

o) Heating-ventilating units;

p) Blowers employed as components in equipment such as furnaces, mechanical-refrigeration equipment, or air conditioners; q) Fusible links and similar equipment that may be provided to disconnect a fan or close shutters in the event of fire;

r) Ventilators specifically intended for use in exhausting any of the following: gases other than air, atmospheres causing corrosion to the ventilator, air with water spray, or flammable vapors; or

s) Ventilators for the removal or conveyance of dust, stock, or refuse.

t) Microwaves, ventilating and otherwise; and

u) Ducted and non-ducted heat recovery units.