We would like to provide some background on how the building’s mechanical systems operate and what to expect during seasonal temperature transitions.
This facility is served by a constant volume Moduline HVAC system, which was installed in the 1970s. In a constant volume system, a fixed airflow rate is maintained to each zone, while the air temperature supplied from the central air-handling unit (AHU) is adjusted to meet overall building conditions. The system operates in either heating or cooling mode at any given time—meaning it cannot provide simultaneous heating and cooling to different areas.
In addition to the Moduline system, the building is equipped with perimeter radiant heating. These radiant heaters are located along exterior walls and activate during colder conditions to offset heat loss and improve comfort near windows and other perimeter areas.
During transitional seasons (spring and fall), occupants may notice temperature fluctuations throughout the day. Morning temperatures may feel cooler until the system transitions into its normal daytime operation, and interior zones may become warmer in the afternoon as outdoor temperatures rise. These variations are a normal characteristic of constant volume HVAC systems and are influenced by both outdoor conditions and building load diversity.
We continuously monitor system performance and adjust operating parameters as needed to maintain comfort within the design range. However, some variability should be expected during periods of rapid outdoor temperature change.
If you experience ongoing temperature issues that seem outside normal variation, please contact Facilities Management at DC_Facilities_Dispatch@ucdenver.edu or 303-315-7777 for assistance.