HP Performance Optimized Datacenter 20c User Guide - North America

Environmental control system 55
The Controller Settings screen displays the control setpoints for each major system component.
You can set the following configuration options:
• Pressure P and I gain
• Temperature P, I, and D gain
• 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
Temperature setpoint (hot
aisle)
Sets the temperature setpoint for the hot aisle
Temperature and pressure
time constant
Used by the low pass filter to smooth the measurement values
Temperature P,I, and D gain
Proportional, integral, and differential gains influence the rate of change in the
position of the flow control valve or the fan speed in order to reach the
pre-determined setpoints.
Pressure setpoint
Sets the pressure setpoint
Pressure P and I gain
Proportional and integral gains influence the rate of change in the position of the
flow control valve or the fan speed in order to reach the pre-determined setpoints.
Control routine interval
Sets the interval within seconds when the control routine is activated