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ANSI Z21.68

1985 Edition, 1985

Complete Document

THERMALLY ACTUATED AUTOMATIC VENT DAMPER DEVICES FOR USE WITH GAS-FIRED APPLIANCES SECOND EDITION



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W/D NO S/S
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Product Details:

  • Revision: 1985 Edition, 1985
  • Published Date: January 1985
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: CSA Gas Standards (CSA/AM)
  • Page Count: 26
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This standard applies to the construction, performance and installation procedures for a newly produced thermally actuated automatic vent damper device, hereinafter referred to as device, constructed entirely of new, unused parts and materials and designed to form a section of the vent connector from an individual, automatically operated, gas-fired appliance equipped with a draft hood (s).

A device coverd by this standard is for installation on a gas-fired appliance listed by a nationally recognized testing agency.

A device covered by this standard shall have an inlet and outlet venting area each no greater than that of a vent connector having a nominal 12 inch (305 mm) diameter [113 square inches (729 cm2)].

If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification