Pump command and status signals are mismatched

Objective/Method/Outcome

Objective: Determines if the command and status signals of the pump are matching

Method: Compares the Command and Status to check if the command and status signals are active at the same time, to find out the hours of fault.

Outcome: Trigger an insight if the hours of fault are greater than the acceptable hours of fault.

Description

Compares the status and command signals to determine if there is a mismatch.

This rule is part of the CopperTree Standard rule-set.

Default Priority

High

Diagnosis

  1. Check if the equipment is manually overridden.
  2. Check interfacing relays.
  3. Check status sensors.

Message

Pump command-status signals do not match. Please investigate unit control.

Rule Template

Insight Type: Fault Detection

Trigger Type: Active High

Logic

Logic used to determine pump status and command signals are mismatching

Inputs

Input Unit Tags Description
Command Hot Water Pump Command, Chilled Water Pump Command The recorded hot water pump command
Status  Hot Water Pump Status, Chilled Water Pump Status The status of the hot water pump
Acceptable Hours of Fault per Week The allowable hours of fault, beyond which an insight is triggered
Cost per Hour $ The cost of fault per hour
Days of operation annually The estimated yearly days of operation used to project potential savings