Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

What is the Air handler Central Cooling Design Temperature Input and how is it impacting the System Design?

asked 2019-01-06 20:57:14 -0500

updated 2019-01-08 09:13:06 -0500

Hello, I am a relatively new user of Open Studio and am not sure what the "Central Cooling Design Temperature" Input is doing from the point of view of design.

image description

From the look of the simulation results it is the Zone Cooling Design Supply Air Temperature which decides the Design Airflow for each zone and the AHU cfm capacity.

image description

The "Central Cooling Design Temperature" seems redundant in this case. In my experience with design and Load estimation, we always have air temperature coming from the AHU (with fan heat added) as the temp input for zone load estimation. Is there some specific use for the "Central Cooling Design Temperature" ?

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2019-01-09 12:08:59 -0500

One of these inputs is for zone sizing, the other for air loop system sizing.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops


Question Tools



Asked: 2019-01-06 20:57:14 -0500

Seen: 192 times

Last updated: Jan 09 '19