A new concept in control system design and installation is developing as a result of application-specific modules. The initial impact of these modules was to shift the installation of intelligent controls from the field to the factory, application-specific controllers are being installed in VAV boxes and other HVAC equipment in ever increasing numbers. These units can operate independently or be connected with a communications link into a network. Now these same modules are providing a very cost effective means of retrofitting older control systems. Also, because of their ability to perform independently, they are providing a means by which the system designer can again assume real responsibility for the design of the control system.
Citation: Symposium, ASHRAE Transactions, 1988, vol. 94, pt. 1, Dallas, TX
Product Details
- Published:
- 1988
- Number of Pages:
- 9
- File Size:
- 1 file , 990 KB
- Product Code(s):
- D-DA-88-19-3
