Determine if chiller temperature control requires tuning
Applicable Systems
Primary: CHLR
Objective/Method/Outcome
Objective: Determine the performance index of a chilled water supply temperature control system using the amount of time the CHWST is not within the desired set point.
Method: Calculate the performance metric based on the total time the CHWST is not within the desired set point during occupied hours.
Outcome: An insight is generated if the CHWST is not within the desired set point for more than 4 hours per week.
Logic
This rule sums the number of times the system is outside of the acceptable range within a week. Since the aggregation interval is set to 15 minutes, every time the control loop is outside of range is treated at 1/4 of an hour.
Sum over course of a Week(number of 15-minute intervals outside of range)
Determine if chiller temperature control requires tuning
