Use Cases

• Existing buildings

• New construction first-year tuning

Fault Type Examples

• Valve leakage / failure

• Damper leakage / failure

• Sensor and AFMS drift / failure

• Reset controls not working as expected

• Component status/command disagree

• Linked component commands disagree—e.g., RAF/EAF/BEF not on with SAF

• Schedule and control on/off disagree

• Zone override and SAF command disagree

• Safety control and alarms improperly triggered or not triggered

• Control point outside acceptable variation of setpoint and operating at min or max capacity

• Economizer not providing free cooling when capable or providing excessive outside air and increasing heating and cooling loads

• Excessive cycling of analog component—e.g., fan, pump, or non-hydronic coil

• Components returned to undesired position or setting when disabled

• Components improperly staged or positioned

Root Cause Analysis

• Identify which component has failed, and how it has failed, in a multi-component system

Asset Monitoring (In development)

• Know the optimal time to “rod out” a shell-and-tube heat exchanger

• Know the optimal time to clean coils and filters

Meter Analytics (In development)

• Detect undesired cycling and unintended off-hours operation of large equipment

• Compare performance of facilities at the portfolio level