HP Modular Cooling System - Manual (Page 28)

Web interface 28
Advanced tab
This screen contains the Temperature Difference for Heat Load Warning field. This field is used to adjust
the heat load temperature, which is the temperature difference between the highest and lowest Server
Exhaust Temperature. If the heat load temperature difference varies by more than this setting, then a Heat
load? warning appears in the operator display, and a Heat Load Warning appears in the web interface.
Setting the value to 0 disables the warning.
When the MCS unit is in Auto mode, the Fan Speed Target and Water Valve fields are not available.
On the Advanced screen, the administrator can change the temperature control modes for the
management module.
IMPORTANT: Temperature Control Manual mode is for service and troubleshooting only and is
not to be used in a production environment.
• Temperature Control Auto mode—Used for operating the MCS unit after a satisfactory water flow
rate has been reached.
In this mode, the MCS unit operates automatically, according to the settings you have assigned to
the following parameters:
o Delta Temperature For Minimum Fan Speed
o Delta Temperature For Maximum Fan Speed
o Cooling Liquid Heat Capacity
• Temperature Control Manual mode—Used to verify the water flow rate after the cold water supply
has been connected. When the water flow rate has been validated, use the Auto mode setting.
In this mode, the MCS unit operates manually, according to the settings you have assigned to the
following parameters:
o Fan Speed Target
o Water Valve
After you change the temperature control modes, you can do the following:
o Click Save Settings to save the information.
o Click Cancel to undo the changes.