发表于:2007-11-20 15:56:00
楼主
Solutions: Institutional/HVAC and Building Automation Systems
New HVAC System Helps to Provide College's Good Learning Environment
The Contemporary Controls Skorpion Switch Solves Network Communication in the System's Controllers
One of the many published documents by the EPA, IAQ Tools for Schools clearly states that "Good indoor air quality (IAQ) contributes to a favorable learning environment for students, productivity for teachers and staff, and a sense of comfort, health, and well-being." A school that has a properly commissioned and maintained HVAC system significantly eliminates any problems with indoor air quality. This is the case for Berkeley Community College in California with an enrollment of more than 4,000 students.
School officials contracted Emcor Service, Mesa Energy Systems (Hayward) headquartered in Irvine, California to install the new HVAC Delta Control system in this six-floor structure. Jonathan Garcia, Project Coordinator with Mesa, said the Delta System is highly reliable and would meet the college's energy conservation requirements and keep maintenance and operating expenses within the budget. In addition, the comfort zone of the college would be at optimal levels—meaning there are no IAQ complaints.
Mesa selected BACnet/IP® as the interface of choice to integrate the HVAC system with other building systems. The HVAC system is controlled through DSCs (Delta System Controllers) located on the building's floors. The DSC is a fully programmable, Native BACnet Building Controller that communicates on Twisted-Pair Ethernet 10BASE-T. It is suitable for controlling equipment such as AHUs, Boilers, Chillers and a variety of HVAC control systems.
The System Workstation, located on the ground floor, is connected to the network through an Ethernet switch, specifically Contemporary Controls® five-port, industrial-grade Skorpion switch. The EISK5-100T is marketed under the CTRLink® trade name by this industrial networking manufacturer in Downers Grove, Illinois. Garcia said the EISK5-100T serves as one of the main doors to communicating with other devices in the network. "That's why it's vital for Mesa to have a consistent supply," he said. "This is highly important—communication on a Local Area Network&