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// CODE SNIPPET

717.3.1 Damper Testing

2015 Washington State Building Code > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.3 Damper Testing, Ratings and Actuation > 717.3.1 Damper Testing
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Dampers shall be listed and labeled in accordance with the standards in this section.
  1. Fire dampers shall comply with the requirements of UL 555. Only fire dampers and ceiling radiation dampers labeled for use in dynamic systems shall be installed in heating, ventilation and air-conditioning systems designed to operate with fans on during a fire.
  2. Smoke dampers shall comply with the requirements of UL 555S.
  3. Combination fire/smoke dampers shall comply with the requirements of both UL 555 and UL 555S.
  4. Ceiling radiation dampers shall comply with the requirements of UL 555C or shall be tested as part of a fire-resistance-rated floor/ceiling or roof/ceiling assembly in accordance with ASTM E119 or UL 263.
  5. Corridor dampers shall comply with requirements of both UL 555 and UL 555S. Corridor dampers shall demonstrate acceptable closure performance when subjected to 150 feet per minute (0.76 mps) velocity across the face of the damper during the UL 555 fire exposure test.

Related Code Sections


607.3.1 Duct Systems, Damper Testing
be tested as part of a fire-resistance-rated floor/ceiling or roof/ceiling assembly in accordance with ASTM E 119 or UL 263. Corridor dampers shall comply ...
2015 Washington State Mechanical Code > 6 Duct Systems > 607 Duct and Transfer Openings > 607.3 Damper Testing, Ratings and Actuation > 607.3.1 Damper Testing
607.3.1 Duct Systems, Damper Testing
with the requirements of both UL 555 and UL 555S. Ceiling radiation dampers shall comply with the requirements of UL 555C or shall be tested as part of a fire ...
2018 Washington State Mechanical Code > 6 Duct Systems > 607 Duct and Transfer Openings > 607.3 Damper Testing, Ratings and Actuation > 607.3.1 Damper Testing
717.3.1 Fire and Smoke Protection Features, Damper Testing
or shall be tested as part of a fire-resistance-rated floor/ceiling or roof/ceiling assembly in accordance with ASTM E119 or UL 263. Corridor dampers ...
2015 Washington State Building Code > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.3 Damper Testing, Ratings and Actuation > 717.3.1 Damper Testing
717.3.1 Fire and Smoke Protection Features, Damper Testing
with the requirements of both UL 555 and UL 555S. Ceiling radiation dampers shall comply with the requirements of UL 555C or shall be tested as part of a fire ...
2018 Washington State Building Code > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.3 Damper Testing, Ratings and Actuation > 717.3.1 Damper Testing
717.6.2.1 Fire and Smoke Protection Features, Ceiling Radiation Dampers Testing and Installation
Ceiling radiation dampers shall be tested in accordance with Section 717.3.1. Ceiling radiation dampers shall be installed in accordance ...
2018 Washington State Building Code > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.6 Horizontal Assemblies > 717.6.2 Membrane Penetrations > 717.6.2.1 Ceiling Radiation Dampers Testing and Installation
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