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  • UL 555C:4ED 2014-12

    Current The latest, up-to-date edition.

    Ceiling Dampers

    Available format(s):  Hardcopy

    Language(s): 

    Published date:  16-12-2014

    Publisher:  Underwriters Laboratories

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 General
    Construction
    3 Components
    4 Corrosion protection
    Performance
    5 General
    6 Fire-endurance test
    7 Closing reliability test
    8 Dust loading test
    9 Salt-spray exposure test
    10 Spring closing force test
    11 Metallic coating thickness test
    Manufacturer's instructions
    12 Installation instructions
    Marking
    13 General

    Abstract - (Show below) - (Hide below)

    This revision of ANSI/UL 555C dated January 21, 2021 is being issued to include an additional option for Protection Against Corrosion and changes to dynamic single or bidirectional airflow; 4.1, 10.1.3 and 13.1.

    Scope - (Show below) - (Hide below)

    These requirements and methods of tests apply to ceiling dampers and ceiling air diffusers intended for installation in hourly rated fire resistive floor-ceiling and roof-ceiling assemblies.

    General Product Information - (Show below) - (Hide below)

    Development Note NEW CHILD REV 2 2021 IS NOW ADDED.
    Document Type Standard
    Publisher Underwriters Laboratories
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASHRAE HDBK SMOKE CONTROL ENGINEERING : 2012 HANDBOOK OF SMOKE CONTROL ENGINEERING
    ASME AG-1 : 2019 CODE ON NUCLEAR AIR AND GAS TREATMENT
    ASME AG 1 : 2012 CODE ON NUCLEAR AIR AND GAS TREATMENT
    ASTM E 2912 : 2017 : REDLINE Standard Test Method for Fire Test of Non-Mechanical Fire Dampers Used in Vented Construction
    ICC 2012 INTERNATIONAL BUILDING CODE : 2012 INTERNATIONAL BUILDING CODE
    ICC IBC CODE AND COMMENTARY VOLUME 2 : 2015 IBC® Code and Commentary, Volume 2
    ICC IMC Code and Commentary : 2015 IMC® Code and Commentary
    NFPA 5000 : 2018 BUILDING CONSTRUCTION AND SAFETY CODE
    NFPA 90A : 2018 INSTALLATION OF AIR-CONDITIONING AND VENTILATING SYSTEMS
    ASHRAE HDBK REFRIGERATION : 2014 ASHRAE HANDBOOK - REFRIGERATION
    ICC 2012 INTERNATIONAL MECH. CODE : 2012 INTERNATIONAL MECHANICAL CODE

    Standards Referencing This Book - (Show below) - (Hide below)

    UL 555:7ED 2006-07 Fire Dampers
    UL 1332:5ED 2016-02 Standard for Organic Coatings for Steel Enclosures for Outdoor Use Electrical Equipment
    UL 263:14ED 2011-06 Fire Tests of Building Construction and Materials
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