elevators-vertical-transportation

name	elevators-vertical-transportation
description	Elevator and escalator systems guidance for construction project managers coordinating vertical transportation installation.

Elevators & Vertical Transportation

Quick reference for construction project managers and field supervisors managing elevator and escalator installations on commercial and institutional projects.

Elevator Type Selection

Type	Speed	Rise	Best Application
Geared Traction	Up to 350 fpm	Unlimited	Low/mid-rise, moderate traffic
Gearless Traction	500+ fpm	Unlimited	High-rise, high-speed, heavy traffic
MRL (Machine-Room-Less)	Up to 500 fpm	Low/mid-rise	Space savings, no machine room above
Hydraulic (Conventional)	150-200 fpm	60-70 ft	Low-rise, cost-effective
Hydraulic (Holeless)	150-200 fpm	40-50 ft	Low-rise, no ground penetration
LULA	30 fpm	Per code	Accessibility, small buildings

Standard Elevator Capacities

Capacity	Platform Size (Typical)	Application
2,500 lbs	6'-8" x 4'-3"	Standard office passenger
3,000 lbs	6'-8" x 4'-5"	Office, retail
3,500 lbs	7'-0" x 5'-0"	Hospital, hotel
4,000-4,500 lbs	8'-4" x 5'-8"	Hospital bed elevator
5,000+ lbs	Varies	Freight, service

Critical Coordination Points

Structural Requirements

• Pit depth: 4'-6" to 8' (traction), 4'-0" to 5'-0" (hydraulic)
• Overhead clearance: 12'-0" to 16'-0" minimum (varies by speed)
• Hoistway dimensions: ±½" tolerance on width and depth
• Plumbness: 1:500 maximum deviation
• Rail bracket loads: 10,000-25,000 lbs horizontal per bracket

Electrical Requirements

• Power: 208V or 480V, 3-phase (verify with manufacturer)
• Dedicated feeder: Required for each elevator
• Disconnect: Lockable, within sight of machine
• Machine room lighting: 100 ft-candles minimum
• Pit and hoistway: Lighting and GFCI receptacle required

Fire Protection Interface

• Smoke detectors: Lobby, machine room, hoistway (top)
• Phase I recall: Automatic on smoke detection
• Shunt trip: Required if hoistway sprinklered
• Fire alarm integration: Addressable or relay interface

Pre-Installation Checklist

Item	Verify	Responsible
Pit complete and waterproofed	Dimensions, drain, ladder, light	GC/Structural
Hoistway enclosed and fire-rated	Dimensions, plumb, brackets set	GC/Structural
Machine room ready	Dimensions, ventilation, power	GC/Electrical
Power available	Voltage, phase, amperage	Electrical
Fire alarm interface ready	Smoke detectors, recall circuits	Fire Alarm
Hoistway openings framed	Headers, dimensions, fire rating	GC

Installation Sequence

1. Pre-installation inspection - Verify pit, hoistway, machine room complete
2. Rail installation - Brackets, templates, rails, alignment
3. Machine installation - Setting, connections, alignment
4. Car installation - Platform, frame, guide shoes
5. Hoistway doors - Frames, doors, hardware
6. Wiring and controls - Traveling cable, controller commissioning
7. Cab finishes - Interior panels, flooring, fixtures
8. Adjustments and testing - Fine-tuning, safety tests
9. Inspection and acceptance - AHJ inspection, certificate

Key Code Requirements

Requirement	Code Reference	Notes
Elevator safety	ASME A17.1	Safety Code for Elevators
Inspection procedures	ASME A17.2	Guide for Inspection
Existing elevators	ASME A17.3	Retroactive requirements
Platform lifts	ASME A18.1	Stairway lifts, VPLs
Building code	IBC Chapter 30	Number required, accessibility
Hoistway enclosure	IBC Chapter 7	Fire rating, openings
Accessibility	ADA / ICC A117.1	Size, controls, signals

Fire Service Operation

Phase I (Automatic Recall)

• Activated by lobby or machine room smoke detector
• Elevators return to designated floor
• Doors open and remain open
• Visual signal indicates recall active

Phase II (Manual Firefighter Operation)

• Activated by key switch in car
• Constant pressure door control
• Independent car operation
• Fire service key required (FEO-K1)

ADA Accessibility Requirements

Element	Requirement
Door width	36" minimum clear opening
Platform size	80" x 54" minimum (2,000 lb car)
Control height	54" max (side reach), 48" max (front reach)
Buttons	¾" minimum, raised, Braille
Floor designations	2" raised characters, 60" height
Hall lanterns	2½" minimum, visible from call button
Door timing	Based on 1.5 ft/sec travel speed

Testing Requirements

Test Type	Frequency	Scope
Category 1	Annual	Visual, functional, fire service
Category 5	5 years	Full load, safety test, buffer test
Acceptance	Initial	All systems, AHJ witnessed
Fire service	Annual	Phase I and II operation

Common Elevator Issues

Issue	Cause	Resolution
Pit water	Waterproofing failure	Repair waterproofing, verify sump pump
Rail misalignment	Structural movement	Resurvey, realign rails
Door problems	Interlock, operator, sill	Clean sills, adjust operator
Leveling issues	Controller, encoders	Adjust leveling circuits
Fire recall fails	Smoke detector, wiring	Verify detector zones, test circuits
Noise/vibration	Isolation, alignment	Check mounts, realign

Turnover Requirements

• Final inspection complete (AHJ)
• Certificate of operation posted
• All keys provided (fire service, access, independent)
• O&M manuals delivered
• As-built drawings delivered
• Building staff training complete
• Warranty documentation
• Maintenance contract executed
• Emergency procedures established
• Monitoring service active

Long-Lead Items

Item	Lead Time
Elevator equipment	12-20 weeks
Custom cab finishes	8-12 weeks
Specialty fixtures	6-10 weeks
Glass entrances	6-8 weeks

Reference Files

Elevator Types

• Traction Elevators - Geared, gearless, MRL systems
• Hydraulic Elevators - Conventional, holeless, roped
• Specialty Elevators - Destination dispatch, freight, LULA, dumbwaiters

Components & Construction

• Elevator Components - Machines, controllers, safeties
• Hoistway Construction - Enclosure, rails, venting
• Pit & Machine Room - Requirements, layout, access
• Doors & Entrances - Types, operation, finishes
• Cab Finishes & Fixtures - Interiors, controls, signals

Performance & Safety

• Elevator Performance - Speed, capacity, ride quality
• Fire Service & Emergency - Phase I/II, shunt trip
• Accessibility - ADA - Compliance requirements
• Safety Hazards - Construction, operational hazards

Coordination & Compliance

• Coordination & Installation - Structural, electrical, MEP
• Code Compliance - A17.1, IBC, inspection process
• Testing & Inspection - Acceptance, periodic testing
• Maintenance & Turnover - Contracts, training, closeout

Additional Systems

• Escalators & Moving Walks - Types, installation, safety
• Specifications - CSI - Division 14, bidding

Related Skills

• structural-trades - Pit, hoistway, and machine room construction
• electrical-systems - Power, disconnect, lighting coordination
• fire-protection-systems - Sprinklers, shunt trip, fire alarm interface
• construction-safety-management - Fall protection, LOTO procedures
• vdc-bim-coordination - Elevator coordination, clash detection
• procore-project-management - RFI, submittal, daily log workflows
• schedule-management-cpm - Elevator installation sequencing
• quality-control-closeout - Acceptance testing, commissioning
• building-envelope-exterior - Hoistway venting coordination