Objective/ Method/Outcome
Objective: Determines if the VAV is heating while the VAV Damper Position is closed.
Method: Compares the VAV Damper Position and the VAV Heating Command. If heating is enabled while the VAV Damper is commanded to a closed position, the hours of faulty operation are calculated.
Outcome: This rule generates an insight if the Weekly Hours of Faulty Operation exceeds the acceptable weekly threshold.
Description
This rule monitors if heating valve is open when damper is closed. An insight will be triggered if VAV is heating while damper is closed.
This rule is part of the CopperTree Standard rule-set. (Aliased Celsius / Aliased Fahrenheit)
Default Priority
Medium
Diagnosis
1. Review control sequence
Message
VAV is heating while damper is closed.
Rule Template
Insight Type: Fault Detection
Trigger Type: Active High
Notes
Default Values:
Const. – Threshold for Faulty Hours Per Week [hours]: 8
CTLs:
VAV Heating When Damper is Closed – Weekly Hours of Faulty Operation (KPI)
VAV Heating When Damper is Closed – Hours of Faulty Operation (CUSUM)
