Together we engineer a better Asia
Central Plaza Chaengwattana Electrical and Mechanical Installation,
Thailand
Developer
JEC Scope
Location
Project Completion Date Central Pattana Public Company Limited
Supply and installation of air-conditioning and ventilation system, electrical and communication system, sanitary and fire protection system
Bangkok, Thailand
2009
JEC Thailand supplied and installed the mechanical and
electrical systems for the Central Plaza Chaengwattana,
the largest shopping mall in Northwest Bangkok.
JEC installed the air-conditioning and ventilation
system, electrical system, and an integrated building
management system.
Integrated Building Management System (IBMS)
The IBMS controls the operation of the lighting system
and air-conditioning & ventilation system for optimal
efficiency:
•
•
Lighting System: The department store can set the time to automatically turn on-off the lights. In some areas which receive natural light, Lux sensors register natural light intensity and automatically dim or brighten artificial light to meet the desired lux level.
Air-Conditioning and Ventilation System: Sensors were installed to monitor the temperature, humidity, and carbon dioxide in the area. They increase energy efficiency and control indoor air quality.
Energy Efficiency Air-Conditioning
The air-conditioning and ventilation system was installed
according to a Low Flow Low Temperature design.
Jardine Engineering Corporation
www.jec.com
Water supplied into and out of the Air Handling Units
(AHU) and Fan Coil Units (FCU) usually enters at a
temperature of 45°F and exits at a temperature of 55°F
with a delta of 10°F. The low flow concept, in contrast,
allows water to enter at 42°F and exit at 57°F with a
delta of 15°F. This larger temperature range (or delta)
provides a more efficient means of transferring
heat load.
Larger than normal chillers were used to generate lower
temperature chilled water. Other equipment such as
pumps, pipes and valves were smaller than usual as
the system operates with a low water flow design. This
design reduced equipment costs and energy use. The
system saves about 20-30% of energy consumption in
comparison with a standard installation.
Water Saving Plumbing and Fire Protection Systems
The system reduces water costs by reusing water. Solids
and waste water coming from toilets and restaurants are
treated and passed to a reused water tank. The reused
water is then used for secondary purposes such as toilet
flushing and irrigation. Condensed water from AHU and
FCU is also recycled by passing through an automatic
sand filter and carbon filter. The water is then pumped
to cooling towers.
B044-0410T