Witryna28 paź 2024 · The current language in the IMC 602.2.1 Materials within plenums, says “…materials within plenums shall be noncombustible or shall be listed and labeled as having a flame spread index of not more than 25 and a smoke-developed index of not more than 50 when tested in accordance with ASTM E 84 or UL 723.” Witryna2015 International Mechanical Code (IMC) 602.2.1 Materials within plenums. Except as required by Sections 602.2.1.1 through 602.2.1.7, materials within plenums shall be …

CHAPTER 6 DUCT SYSTEMS

http://www.ecodes.biz/ecodes_support/free_resources/2010Florida/Mechanical/PDFs/Chapter%206%20-%20Duct%20Systems.pdf WitrynaPlenums shall be limited to one fire area. Air systems shall be ducted from the boundary of the fire area served directly to the air-handling equipment. Fuel-fired appliances shall not be installed within a plenum. o 602.2.1 Materials within plenums. Except as required by Sections 602.2.1.1 inacex login

18-28-602.2.1 Materials exposed within plenums.

Witrynarequires materials exposed to the airflow in ceiling cavity plenums used for supply, return or exhaust air from the occupied area to be noncombustible, limited combustible, or have a flame spread index not exceeding 25 and a smoke-developed index not exceeding 50. Similarly, IMC Section 602.2.1 requires materials exposed within … Witryna602.2.1 Materials within plenums. Except as required by Sections 602.2.1.1 through 602.2.1.7, materials within plenums shall be noncombustible or shall be listed and labeled as having a flame spread index of not more than 25 and a smoke-developed … Witryna602.2.1 Materials within plenums Except as required by Sections 602.2.1.1 through 602.2.1.7, materials within plenums shall be noncombustible or shall be listed and labeled as having a flame spread index of not more than 25 and a smoke-developed index of not more than 50 when tested in accordance with ASTM E 84 or UL 723. inache portlaoise