Objective/Method/Outcome
Objective: Determines if the filter needs replacement
Method: Calculates if differential pressure is over 20% than average. If the DP is over 20%, for more than the acceptable amount of time, an insight is triggered.
Outcome: To calculate an urgency score, the ventilation impact and an insight.
Description
Monitors filter differential pressure and compares it to average values from the previous 60 days to determine if filter may need to be replaced.
This rule is part of the CopperTree Standard ruleset.
Default Priority
Medium
Diagnosis
- Check filter.
- Replace filter if necessary.
Message
Filter may need to be replaced, differential pressure is higher than historical average.
Rule Template
Insight Type: Fault Default
Trigger Type: Active High
Logic
Inputs
| Input | Unit | Tags | Description |
|---|---|---|---|
| Filter DP | Filter Differential Pressure | The recorded filter differential pressure | |
| Threshold – Max DP Above Range | % | The minimum differential pressure that can trigger an insight | |
| Threshold – Ventilation Impact Trigger | % | The minimum ventilation impact that can trigger an insight | |
| Threshold – Urgency Score Trigger | % | The minimum urgency score that can trigger an insight | |
| Threshold – DP Above Average | % | The minimum differential pressure that can trigger an insight |
Notes
Default Thresholds:
- Threshold – DP Above Average [%]: 20
- Threshold – Ventilation Impact Trigger [%]: 14
- Threshold – Urgency Score Trigger [%]: 40
- Threshold – Max DP Above Range (Urgency Score @ 100) [%]: 100
