Columbia Buildings Corporation (BCBC)
BCBC has published a complete online version of its Client
Comfort Software Systems Design Manual, This document is
intended to assist and instruct designers who are specifying
computerized building controls.
Digital Control (DDC) Online
Visit DDC-Online for unbiased information on Direct Digital
Controls (DDC) and a searchable guide to DDC manufacturers.
Direct Digital Control (DDC) of today's building energy management
systems can improve operations and energy efficiency. DDC control
consists of microprocessor-based controllers in which software
performs the control logic. DDC systems can be complex and
proprietary, and choosing among the various manfucuaturers can be
The Iowa Energy Center in conjunction with the U.S. Department of
Energy has developed the Direct Digital Control (DOC) online
website to help building owners and consulting engineers in the
The site features:
- a basic introduction to DDC and the terms used in the
- a detailed but easily comparable listing of DDC system
architectures, hardware components, and software from the prominent
- a detailed publication on input and output processes of DDC
Systems: A Practical Guide
This document was prepared for U.S. EPA by Portland Energy
Conservation Inc. Currently it is not available over the Internet.
Printed copies can be ordered from PECI by phone, mail, or e-mail.
921 SW Washington, Suite 312
Portland, OR 97205
System Control Strategies
This application guide, published by the UK-based Building Services
Research and Information Association (BSRIA), provides an
independent reference document for specifying, developing, or
configuring HVAC plant control strategies. The full document can be
purchased from BSIRA.