ASHRAE Society


Instructions for Cooling Coil Process Model

Caution   CAUTION!

The on-line program you are about to enter should be considered an alpha release. Every effort has been made to ensure accuracy. However, occasional bugs may decide to visit. If you experience or recognize any type of error, please contact Russ Marcks with the details of that error. Include the error message as well as the data values used to generate the error.

This program has minimal error trapping capability at this time. It is currently possible to enter inappropriate values resulting in negative latent coil loads, negative condensate production or inappropriate values of psychrometric properties. If you receive any of these conditions, chances are one or more of your input values are inappropriate.


There are no known bugs at this time.

Future Enhancements   FUTURE ENHANCEMENTS!

The current program will only calculate process loads given entering and leaving conditions. I fully intend to provide the option to calculate leaving conditions given entering conditions and loads as well as entering conditions given leaving conditions and loads.

Disclaimer   DISCLAIMER

No warranty, either expressed or implied, is given with respect to the accuracy or the sufficiency of the information provided hereby, and the user must assume all risks and responsibility in connection with the use thereof.

Copyright   COPYRIGHT

Copyright © 2000 Russell K. Marcks, P.E. and ASHRAE Dayton Chapter. All rights reserved. No part of this web page and associated script may be produced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form without the express written consent of the author.


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This web site is maintained by the Dayton Chapter of the American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc. (ASHRAE). It does not present official positions of the Society nor reflect Society policy. ASHRAE chapters may not act for the Society and the information presented here has not had Society review. To learn more about ASHRAE activities on an international level, contact the ASHRAE home page at

Website questions or comments? Contact Russell Marcks
Last Updated 04 Jan 2015