Temp Sensor Drift
refrigeration
Description
One temperature sensor differs by more than +/-54°F (30°C) from the average of all three sensors, and the unit does a required shutdown.
Activation Conditions
One of the three temperature sensors differs Drift more than +/-54°F (30°C) from the average temperature of all the temperature sensors.
Unit Behavior
Required Shutdown.
Reset Conditions
If trigger on message not received for five seconds, alarm reset or alarm may be manually reset by turning the unit off, then back on again.
Corrective Actions
1. Check the temperature value of all temperature sensors using Unit Data. See unit's Operator's manual for information on viewing Unit Data. 2. Look for a temperature sensor that differs more than +/-54°F (30°C) from the average temperature and replace that sensor. 3. Temperature sensor drift is checked five hours after the START/RUN-OFF switch (SROS) has been switched off.