Section 318.1707. Dumbwaiter and Type B material lifts.  


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  • (1) Power and hand dumbwaiters without automatic transfer devices. Substitute the following wording for the requirements in ASME A17.1 Part 7, Scope: This part applies to power dumbwaiters and Type B material lifts.
    (2) Hoistway-access doors. This is a department rule in addition to the requirements in ASME A17.1 section 7.1.11.5: Hoistway access door panels for power dumbwaiters shall be provided with an electric contact to remove power to the driving machine when the panel is not in the closed position.
    (3) Hoistway-door vision panels. Substitute the following wording for the requirements in ASME A17.l section 7.1.11.8: Vision panels shall be provided in hoistway doors where position indicators are not provided. Vision panels shall comply with the requirements in ASME A17.1 sections 2.11.7.1.2, 2.11.7.1.3, 2.11.7.1.4, and 2.11.7.1.6, and the total area of one or more vision panels in any hoistway door may not be less than 4 square inches and not more than 25 square inches.