New England Business Service's Maryville Missouri facility is a paper forms printing plant.
The building's major mechanical systems include:
|8 - 20-50 ton Carrier Package Cooling Units with Economizers|
|7 - Steam Humidification Units|
|2 - Gas fired Hot Water Boilers|
Phase One of this project involved replacing the existing DDC system with a Delta Controls ORCA Series DDC system. The existing system had Y2K issues. While updating the equipment, corporate and local facility management put forth a list of goals that they wanted to accomplish during the replacement. These included:
R. L. Shields Associates, Inc. installed 1 Delta Controls ORCA Series DCU Controller and 8 Delta Controls Micro Controllers.
To control ventilation requirements, Carbon Dioxide (CO2) sensors were installed in the office and production areas. As CO2 levels rise, the outside dampers modulate open to keep the CO2 readings below maximum acceptable levels. Carbon Dioxide has become an acceptable method of controlling ventilation requirements and is recognized by ASHRAE as one method of monitoring air quality.
To control building static pressures, a network of sensing ports was installed around the four sides of the building. Since the Delta Zone Controllers allowed full control over the dampers in the Carrier units, as the static pressure starts to go negative, the dampers begin to modulate open to allow outside air to enter the building through the cooling units rather than the doors.
Some special software was developed by R. L. Shields Associates for use on this site and others.
|ROOF TOP UNIT|
For more information on this project or Delta Controls, contact:R. L. Shields Associates, Inc.
Click here to select another Case Study.
Click here to return to the Home Page.
© Copyright R. L. Shields Associates, Inc. All rights reserved.
Intelli-Sys, Intelli-Con, Intelli-Net, and Intelli-Stat are trademarks of Delta Controls, Inc.