To achieve the first credit both statements must be fulfilled:
1.An analysis of transport demand and patterns for the building has been carried out by the design team to determine the optimum number and size of lifts and counterbalancing ratio on the basis of anticipated passenger demand.
2.The energy consumption for at least two types of lift or lift strategy ‘fit for purpose’ has been estimated and the system with the lowest energy consumption specified.
On fulfilment of the first credit, 3 out of 4 energy-efficient features that offer the greatest potential energy saving are identified
1.The lifts operate in a stand-by mode during off-peak and idle periods. For example, the power side of the lift controller and other auxiliary equipment such as lift car lighting and ventilation fan switch off when the lift is not in motion.
2.Where lift motors use a drive controller capable of variable-speed, variable-voltage, variable-frequency control of the drive motor.
3.The lift has a regenerative unit so that energy generated by the lift (due to running up empty and down full), is returned back to the grid of used else where on site.
4.The lift car uses energy-efficient lighting and display lighting (>60 Lumens/watt or fittings that consume less than 50W e.g. LEDS).
Each escalator/auto walk complies with either of the following:
a. Is fitted with a load sensing device that synchronises motor output to passenger demand through a variable speed drive.
b. Is fitted with a passenger sensing device for automated operation, so the escalator operates in stand-by mode when there is no passenger demand.
What is People Flow®?
People Flow means people moving smoothly, safely, comfortably, and without waiting in and between buildings.
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