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    Section 15240-Chutes: Part 1 - General

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    Ali Osman
    This document outlines specifications for metal vertical chutes, including waste and laundry chutes. It provides details on acceptable materials, components, fabrication, installation and testing requirements. Key components discussed include intake and discharge doors, access doors, venting, fire sprinklers, flushing/sanitizing units and optional interlock systems. Fabrication must be done to minimize projections in the chute interior. Installation must meet NFPA standards and manufacturer instructions to ensure components are securely anchored and fire-resistant.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Section 15240-Chutes: Part 1 - General

    Uploaded by

    Ali Osman
    99 views5 pages
    This document outlines specifications for metal vertical chutes, including waste and laundry chutes. It provides details on acceptable materials, components, fabrication, installation and testing requirements. Key components discussed include intake and discharge doors, access doors, venting, fire sprinklers, flushing/sanitizing units and optional interlock systems. Fabrication must be done to minimize projections in the chute interior. Installation must meet NFPA standards and manufacturer instructions to ensure components are securely anchored and fire-resistant.

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    Original Title

    CHUTES

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    This document outlines specifications for metal vertical chutes, including waste and laundry chutes. It provides details on acceptable materials, components, fabrication, installation and testing requirements. Key components discussed include intake and discharge doors, access doors, venting, fire sprinklers, flushing/sanitizing units and optional interlock systems. Fabrication must be done to minimize projections in the chute interior. Installation must meet NFPA standards and manufacturer instructions to ensure components are securely anchored and fire-resistant.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    99 views5 pages

    Section 15240-Chutes: Part 1 - General

    Uploaded by

    Ali Osman
    This document outlines specifications for metal vertical chutes, including waste and laundry chutes. It provides details on acceptable materials, components, fabrication, installation and testing requirements. Key components discussed include intake and discharge doors, access doors, venting, fire sprinklers, flushing/sanitizing units and optional interlock systems. Fabrication must be done to minimize projections in the chute interior. Installation must meet NFPA standards and manufacturer instructions to ensure components are securely anchored and fire-resistant.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 5

    Section 15240- chutes

    PART 1- GENERAL

    1-1 Related documents


    A. Drawings and general provisions of the contract, including general and
    supplementary conditions and division 1 specification Section, apply
    this Section.

    1-2 Summary
    A. This Section includes metal, vertical, gravity-type chutes including:
    1- Waste chutes
    2- Laundry chutes
    B. Related Section include the following:
    1- Division 10 Section “postal specialties” for mail chutes.
    2- Division 15 Sections for water service connections.
    3- Division 16 Sections for electrical service connections.

    1-3 Submittals
    A. Product data: for each type of product indicated.
    B. Shop drawings: detail chute assemblies and indicate installation
    details, dimensions, required clearances, method of filed assembly,
    and location and size of each filed connection.
    1-4 Quality Assurance
    A. NFPA compliance: provide chutes complying with NFPA 82.

    PART 2- PRODUCTS

    2-1 Manufacturers
    Available manufacturers: subject to compliance with
    requirements, manufacturers offering products that may be
    incorporated into Work include

    2-2 Materials

    A. Chute Metal: Optional one of the following material to be


    selected (Galvanneal – Galvanized steel- Aluminized
    Steel -stainless steel 304 or 430 type) ASTM A 240/A
    240M.
    B. Specified thickness: 16-gauge.
    2-3 Doors
    A. intake door assemblies:
    ASTM 302/304 stainless steel, hopper type, self closing, U.L Tested.
    Approved, 1-1/2 hour “B” fire rated stainless steel doors. (Underwriters
    Laboratories “B” Label
    Designation and rated for a 250 degree F maximum door temperature rise
    Over 30 minutes, with stainless steel trim in a UL approved, “B” Label, 1-1/2
    Hour assembly.

    1- Door Type: Limited access, right-hand hinged, 180-degree


    swing. (in case of Laundry Chute)
    Hopper type, bottom hinged, self closing (in
    case of garbage Chute)
    2- Size: Manufacturer’s standard size for door type, and chute type
    and diameter indicate.
    3- Finish: Manufacturer’s standard polish finish.

    B- Discharge door assemblies:

    Sliding guillotine Rolling Type, with 165 F-degree fusible safety link
    made of aluminized steel with 1” thick insulation.

    C- Access door assemblies: Manufacturer’s standard ASTM A


    240/A 240M, type 302/304 stainless-steel self-closing units with
    positive latch and latch handle;’ Class B labeled; 1-1/2-hour fire
    rated with 30-minute temperature rise of 121 deg C; with frame
    suitable for enclosing chase construction.

    D- Chute Vent: Full diameter vent extending 4' - 0" above


    The roof consisting a flashing, vent body, solid top cap with bird
    screen and roof Curb 44”x 44” x minimum of 8” high. The safety
    vent shall be designed to Normally exhaust the chute riser of odor
    (all over chute length should not consist any obstacle that will
    Affect relief within the chute riser in the event of rapid
    Combustion or explosion so the intake doors below will not be
    blown open.).

    2-4 Accessories
    A. Fire sprinklers: DN13 fire sprinklers ready for piping connections.
    B. Flushing spray unit: DN19 spray head unit located in chute above
    highest intake door, ready for hot-water piping connection, and with
    access for head and piping maintenance.
    C. Sanitizing unit: DN19 disinfecting and sanitizing spray head unit
    located in chute above highest intake door, including 3.8-L tank and
    adjustable proportioning valve with bypass for manual control of
    sanitizing and flushing operation, ready for hot-water piping
    connection, and with access for head and piping maintenance.
    2-5 Fabrication
    A. General: factor-assemble chutes to greatest extent practical with
    continuously welded or lock-seamed joints without bolts, rivets, or
    clips projecting on chute interior. Include intake-door assemblies
    and chutes-support frames at each floor, and chute expansion
    joints between each support point.
    B. Roof vent: fabricate vent unit to extend 1200mm above roof with
    full-diameter, screened vent and metal safety cap or glass
    explosion-release cap. Fabricate with roof-deck flange, and with
    counter flashing and clamping ring of nonferrous metal compatible
    with chute metal.
    C. Fire sprinklers: comply with NFPA13. locate fire sprinklers at or
    above the top service opening of chutes, within the chute at
    alternate floors levels in buildings more than two stories tall, and at
    the lowest service level.
    D. Equipment access: fabricate chutes with access for maintaining
    equipment located within the chute, such as flushing and sanitizing
    units, fire sprinklers, and plumbing and electrical connections.
    E. (bends) in the chute, if required, shall be made the same
    diameter as the chute of #16 U.S. gauge aluminized steel
    and have an additional layer of # 13 U.S. gauge
    aluminized steel reinforcing the impact areas.Offsets are
    not to deviate more than 15 degrees off the vertical axis
    of the chute .On Ground floor.

    PART 3- EXECUTION

    1-3 related document


    A. General: comply with NFPA 82 requirements and
    with chute manufacturer’s written instructions.
    Assemble components with tight, no leaking
    joints. Anchor securely to supporting structure to
    withstand impact and stresses on vent units.
    Install chute and components to maintain fire-
    resistive construction of chute and enclosing
    chase.
    B. Install chutes plumb, without offsets more the 15 degree or
    obstructions that might prevent materials from free falling within
    chutes.
    C. Coordination with roofing: anchor roof flanges of chute vent
    before instilling roofing and flashing. Install counter flashing
    after roofing and flashing are installed.
    D. Intake and discharge doors: interface door units with throat
    sections of chutes for safe, snag-resistant, sanitary depositing
    of materials in chutes by users.
    4- Coordinate foot- pedal door operator installation with door and
    chase installation. (in case of optional items)
    5- Interconnect sanitizer control with door interlock system.
    E. Interlock system: comply with applicable NECA
    recommendations.

    3-2 testing:
    A. Test chute components after installation. Operate doors, locks, and
    interlock systems to demonstrate that hardware is adjusted and
    electrical wiring is connected correctly. Complete test operations
    before installing chase enclosures.
    B. Test fire sprinklers and heat-and smoke-sensing devices for proper
    operation
    C. operate sanitizing unit through one complete cycle of chute use and
    cleanup, and replenish chemicals or cleaning fluids in unit
    containers.
    3-3 Cleaning :
    A. After completing chase enclosure, clean exposed surfaces of chute
    system’s components. Do not remove labels of independent testing
    and inspecting agencies.
    3-4 demonstration:
    A. demonstrate use of chute and equipment to owner’s personnel.
    B. Demonstrate replenishment of sanitizing-unit chemicals or cleaning
    fluids.

    Optional item for Doors:


    6- Locks: Cylinder locks with keys that are removable only when
    cylinder is locked. For each door, furnish keys.
    7- Foot operators: hopper-type door operators that unlatch and
    open door when foot pedal is depressed.
    8- Electrical interlocks: interlocks system that is energized by
    opening one intake door, remaining doors automatically lock
    when system is energized.
    B. Heat-detector system: interlock system with temperature-rise elements
    that lock chute doors when temperature in chute reaches a
    predetermined, adjustable temperature.
    C. Manual control system: control system with manual switches that lock
    doors of chute during shutdown hours and service operations.

    End of section 15240

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