Objective/Method/Outcome
Objective: Determines if the return air damper is consistently 100% open during operational hours.
Method: Compares the return air damper command to the error threshold to find the hours during which the value is open at 100%. This is compared to the hours of operation to determine if the damper is consistently at full capacity and find the avoidable cost of running the system at 100%.
Outcome: The rule triggers an insight and calculates potential savings.
Description
Damper control: Check for RAD dampers constantly at 100%.
This rule is part of the CopperTree Standard rule-set.
Default Priority
Medium
Diagnosis
- Damper could be manually overridden.
- Damper could be stuck open.
Message
Return air damper has consistently been 100% open for more than 95% of the total weekly active hours. Please review damper operation.
Rule Template
Insight Type: Fault Detection
Trigger Type: Active High
Logic
Inputs
| Input | Unit | Tags | Description |
|---|---|---|---|
| AHU Status | Discharge Air Fan Status, Discharge Air Fan Command | The recorded status of the air handling unit | |
| Damper Position | Return Air Damper Command, Return Air Damper Position | The recorded damper position of the air handling unit |
