HP Performance Optimized Datacenter 20c User Guide - China

Environmental control system 58
You can set the following configuration options:
• High, medium, and low fan step offsets
• Step shift and differential pressure control delays
• Initial start time
• Temperature and pressure setpoints
• Temperature and pressure time constants
You must select Save to store the parameter changes in the system configuration file. If you do not save your
changes, the old parameters stored in the configuration file reload when the system starts.
Item Description
High, medium, and low fan
step offsets
The temperature that the step function fan control will imitate and move the fan to
the next speed.
Step shift and differential
pressure control delays
Delays that can be programmed to prevent fans from "hunting" during minor
temperature or pressure transients
Initial start time
Time required for fans to initially start prior to step functions going into place that
allows the POD to stabilize
Control routine interval
Sets the interval within seconds when the control routine is activated
Setpoint
temperature/pressure
Sets the temperature and pressure setpoints
Temperature and pressure
time constant
Used by the low pass filter to smooth the measurement values