Objective/Method/Outcome
Objective: Determines the average cooling valve position across the AHUs.
Method: Calculates the average valve position by taking the sum of CCV across all AHUs are taken and divided by the number of AHUs. This is used to calculate the weekly hours of fault.
Outcome: Triggers an insight.
Description
Calculates average cooling valve position across all AHUs, and generates an insight if the average position is higher than the threshold.
Default Priority
Medium
Diagnosis
- Review cooling control on AHUs including whether valves are manually overridden.
Message
The overall cooling system is saturated, the average cooling valve position is above the threshold.
Rule Template
Insight Type: Fault Detection
Trigger Type: Active High
Logic
Inputs
| Input | Unit | Tags | Description |
|---|---|---|---|
| Average Valve Position Threshold | % | The acceptable limit of valve position | |
| Threshold – Weekly Hours of Saturation | hr | The acceptable hours of fault | |
| AHU1 CCV | The recorded AHU position | ||
| AHU2 CCV | |||
| AHU3 CCV | |||
| AHU4 CCV | |||
| AHU5 CCV | |||
| AHU6 CCV | |||
| AHU7 CCV | |||
| AHU8 CCV | |||
| AHU9 CCV | |||
| AHU10 CCV | |||
| AHU Count | The number of AHUs |
