EES Overtemp
refrigeration
Description
Filter Outlet Temp is above 1000°F (1000°C) during regeneration, and the unit does a required shutdown.
Activation Conditions
Filter Outlet Temp >1000°F (1000°C) during regeneration.
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
In some rare cases regeneration may produce higher than expected temperatures leaving the DPF. This may be just after repairs with the BP still high. This means there is excess soot in the DPF. In these cases the EES will try to reduce temperatures by stopping fueling. If temperatures still exceed desired values the unit will temporarily shut down to limit the oxidation rate of the soot. After about 15 minutes the unit will restart and the regeneration will continue if needed.