Assembly Usage Disclaimer

XHEZ - Through-penetration Firestop Systems

XHEZ7 - Through-penetration Firestop Systems Certified for Canada

See General Information for Through-penetration Firestop Systems

See General Information for Through-penetration Firestop Systems Certified for Canada

System No. W-L-7207

January 17, 2012

ANSI/UL1479 (ASTM E814) CAN/ULC S115
F Ratings — 1 and 2 Hr (See Item 1) F Ratings — 1 and 2 Hr (See Item 1)
T Ratings — 1 and 2 Hr (See Item 1) FT Ratings — 1 and 2 Hr (See Item 1)
FH Ratings — 1 and 2 Hr (See Item 1)
FTH Ratings — 1 and 2 Hr (See Item 1)
    1. Wall Assembly — The 1 hr or 2 hr fire rated framed gypsum board wall assembly shall be constructed of the materials and in the manner specified in the individual U400, V400 or W400 Series Wall and Partition Designs in the UL Fire Resistance Directory and shall include the following construction features:
      A. Studs — Wall framing shall consist of steel channel studs. Steel studs to be min 6 in. (152 mm) wide and spaced max 24 in. (610 mm) OC. An additional framing member shall be used to form a shelf within the wall cavity to support the utility controller cabinet (Item 2). The framed opening is to be 1 in. (25 mm) wider than the steel enclosure of the cabinet.
      B. Gypsum Board* — The gypsum board type, thickness, number of layers and orientation shall be as specified in the individual Wall and Partition Design. Size of cutout made to accommodate steel box (Item 2) is to be 1 in. (25 mm) wider and 1 in. (25 mm) higher than the width and height of the steel enclosure of the cabinet.

      The hourly F and T Ratings of the firestop system are equal to the hourly fire rating of the wall in which the firestop system is installed.

    2. Cabinet* - Utility Controller — Recessed factory-protected utility control cabinet with hinged door and trim frame installed per manufacturers' installation instructions in opening on one side of the wall. Mounting brackets at top and bottom of utility control cabinet secured to steel studs with steel screws through mounting brackets prior to installation of gypsum board on one or both sides of wall. Bottom and/or top of steel box may be penetrated by one 2 in. (51 mm) diam steel EMT conduit and up to twelve 1 in. (25 mm) max daim installed from the top and one 1 in. (25 mm) and one 3/4 in. (19 mm) diam conduits installed from the bottom of the box. Conduit which terminates within the box shall be internally plugged with a min 1/2 in. (13 mm) depth of caulk supplied with cabinet or with a ball of putty fill material (Item 3).

    ISIMET L L C — Series UtC-F2, LSP-F2 and S-F2

    3. Fill, Void or Cavity Materials* - Putty — (Not Shown) - As an alternate to the caulk supplied with the cabinet, the end of each conduit which terminates within the cabinet may be sealed with a min 1/2 in. (13 mm) depth of putty fill material.


    * Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

Last Updated on 2012-01-17
XHEZ.W-L-7207 W-L-7207 XHEZ 134341001 SYSTEM Active 20120117 20120117 134341001 528501270

Design/System/Construction/Assembly Usage Disclaimer

  • Authorities Having Jurisdiction should be consulted in all cases as to the particular requirements covering the installation and use of UL Certified products, equipment, system, devices, and materials.
  • Authorities Having Jurisdiction should be consulted before construction.
  • Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements. The published information cannot always address every construction nuance encountered in the field.
  • When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the product manufacturer noted for the design. Users of fire resistance assemblies are advised to consult the general Guide Information for each product category and each group of assemblies. The Guide Information includes specifics concerning alternate materials and alternate methods of construction.
  • Only products which bear UL's Mark are considered Certified.

The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from UL" must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "© 2019 UL LLC".