29 May 2019

JEC Upgrades Air Handling Units for Hongkong Land Portfolio

JEC was awarded the contracts from Hongkong Land to upgrade air handling units (AHU) for Chater House, Exchange Square, Jardine House as well as Edinburgh Tower and Gloucester Tower of Landmark.

The project involves replacing the AHUs with multiple electronically commutated (EC) plug fans. An EC plug fan has a high-performance direct current (DC) motor which is at least 10% more efficient than a conventional alternating current (AC) motor in general. It incorporates voltage alternation within the motor, enabling speed variation in accordance with target room temperature for a more precise control and less energy consumption.

The design air flow rate of an AHU will be shared by several EC plug fans instead of a single fan. If one of the EC plug fans fails to operate, other fans can speed up to reach the required flow rate so that air-conditioning supply can remain unaffected.

To echo with the Government’s five-year target to achieve a 5% electricity saving for government buildings by 2020, JEC has been working closely with clients from commercial sector to meet their energy saving target with latest technology and products.

Image A member of the Jardine Matheson Group