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Elevator Modernisation Services — Frequently Asked Questions
What triggers the need for elevator modernisation?
The most common modernisation triggers are age (controllers and drives older than 20–25 years), safety non-compliance (pre-EN 81-20 gap requirements, absence of door reopening devices, missing pit stops and safety circuits), energy performance (electromechanical controls and AC 2-speed motors consuming 3–5× more energy than modern VFD-driven equivalents), and reliability decline (increasing breakdown frequency and spare parts unavailability for obsolete controllers).
What is typically replaced in a full elevator modernisation?
A full modernisation typically replaces the control panel and microprocessor controller, traction machine and motor (or VFD upgrade for existing motor), door operators, car and landing operating panels, hall lanterns and indicators, safety devices including overspeed governor rope and safety gear if required, and interior cabin finishes. Guide rails, rope anchors, shaft wiring trunking, and the cabin structural frame are normally retained if in good condition.
How long does an elevator modernisation project take?
A single-elevator control system and drive modernisation typically takes 5–10 working days of downtime. A full modernisation including cabin and door systems takes 15–25 working days per elevator. For multi-elevator groups in occupied buildings, phased programmes maintain minimum one elevator in service throughout, with typical project durations of 4–12 weeks depending on group size.
What energy savings can be expected after modernisation?
Replacing AC 2-speed motors with permanent-magnet gearless machines driven by regenerative VFDs typically reduces elevator energy consumption by 40–70 %. Adding LED cabin and shaft lighting, standby mode controls, and sleep mode functions can yield a further 10–20 % reduction. ISO 25745 post-modernisation assessment can demonstrate Class A energy performance for green building certification purposes under LEED, BREEAM, or Turkish TS EN 15232 frameworks.