Objective/Method/Outcome
Objective: Determines if heating is active when zone temperature is above the setpoint.
Method: Checks if the zone heating is active by verifying the recorded heating status and determines if the zone temperature is above setpoint by comparing the recorded zone temperature to the predetermined ideal temperature for the zone.
Outcome: Triggers an insight if heating is active when zone temperature is above setpoint.
Description
Determines if heating is active when zone temperature is above setpoint + 1°. Insight is triggered when this occurs for greater than 2 hours in a week.
This rule is part of the CopperTree Standard ruleset.
Default Priority
Medium
Diagnosis
- Review temperature sensor calibration.
- Review program logic.
Message
Heating has been active while zone temperature is above setpoint.
Rule Template
Insight Type: Fault Detection
Trigger Type: Active High
Logic
Inputs
| Input | Unit | Tags | Description |
|---|---|---|---|
| Heating Status | Room Heating Command, Discharge Air Heating Command | The recorded heating status | |
| Room Temperature | Room Temperature | The recorded room temperature | |
| Const. – Acceptable Weekly Threshold | hr | The weekly acceptable time of fault, beyond which an insight is triggered | |
| Room Temperature Setpoint | Room Active Heating Setpoint, Room Heating Setpoint | The ideal room temperature | |
| Cost per Hour | $ | The cost of fault per hour | |
| Days of operation annually | The estimated days the unit is operation to project potential savings | ||
| Setpoint Deadband | ° | The acceptable deviation from setpoint |
Notes
Default Thresholds:
- Setpoint Deadband: 1.5°
- Days of operation annually (to project potential savings): 185
- Acceptable Weekly Threshold [hrs]: 2
- Cost per Hour [$]: 0
