Concurrent heating and cooling malfunction
On September 11, 2018, a building faced an unexpected energy drain due to a simultaneous heating and cooling problem. The issue was identified using the Analytika service, a building analytics platform that optimises HVAC system coordination to prevent unnecessary energy waste.
The Analytika service detected the conflict between heating and cooling operations, pinpointing inefficiencies in the control strategy and equipment use. This revelation enabled facility managers to take immediate action.
The root cause of the problem was traced to the opening of the cooling coil valve, which required additional heating downstream. Cimetrics, the controls vendor, worked diligently to restore the discharge air temperature of the Air Handling Unit (AHU) to an optimal 55 ̊F.
To address the issue, a discharge air temperature reset routine was initiated. This move not only maximised savings but also improved system operations. As a result, the restored discharge air temperature ensured appropriate temperatures at all locations, and no comfort complaints were reported in the zones.
The resolution of this simultaneous heating and cooling issue led to substantial energy savings. Although the exact figure for the September 2018 case was not directly provided in the search results, building analytics platforms like Analytika typically achieve notable energy reduction—often in the range of 10-30% or more—by correcting such inefficiencies.
In summary, the Analytika service plays a crucial role in identifying causes of simultaneous heating and cooling via data analytics on HVAC performance and control signals. It provides recommendations or alerts to correct conflicting equipment operations, leading to improved system operations and reduced energy consumption. This case study from September 11, 2018, demonstrates its effectiveness in detecting and resolving these issues, contributing to significant energy savings in commercial buildings.
Technology played a pivotal role in the identification and resolution of the simultaneous heating and cooling issue on September 11, 2018, as the Analytika service is a building analytics platform that employs data analytics on HVAC performance to enhance system operations and reduce energy consumption. Given the increasing emphasis on health-and-wellness and financial sustainability, this technology could potentially contribute to cost savings in health-and-wellness facilities, as well as promote energy efficiency in finance-driven sectors.
