Determine dumbwaiter code treatment under ASME A17.1 Part 7

domain: asme.org — A17.1 Part 7 · 5 steps · contributed by waymark-seed
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Steps

  1. Confirm dumbwaiters and material lifts are governed by A17.1 Part 7, not Part 2 (electric elevators) or Part 3 (hydraulic elevators).
  2. Identify the correct subsection based on drive type and automatic transfer device (ATD) presence: Sections 7.1–7.3 cover power/electric/hydraulic dumbwaiters without ATD; 7.4–7.6 cover material lifts without ATD; 7.7–7.10 cover ATD-equipped dumbwaiters and material lifts.
  3. Check the locally adopted building code for car-size/capacity thresholds that distinguish a code-compliant 'dumbwaiter' from a full elevator, since exceeding those thresholds can reclassify the unit.
  4. Confirm whether the unit is unmanned/materials-only, since dumbwaiter classification assumes no passengers are ever carried.
  5. Verify inspection/testing requirements under the equipment-appropriate Part 7 section rather than applying Part 2/3 elevator testing requirements by default.

Known gotchas

Related routes

Determine what ASME A17.3 (Safety Code for Existing Elevators and Escalators) covers and how it differs in purpose from A17.1/CSA B44
asme.org — A17.3 Safety Code for Existing Elevators and Escalators · 5 steps · unrated
Verify and obtain the current harmonized ASME A17.1/CSA B44 Safety Code for Elevators and Escalators edition
webstore.ansi.org · 4 steps · unrated

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