HP Modular Cooling System - Manual (Page 45)

Cooling performance parameter settings 45
IMPORTANT: Temperature Control Manual mode is for service and troubleshooting only and is
not to be used in a production environment.
Parameter Function
Temperature
Control
Used in Auto mode to determine if the MCS unit operates
in Auto mode or Manual mode
Fan Speed Target Used in Manual mode to increase or decrease the fan
speed level
Water Valve Used in Manual mode to vary the opening percentage of
the water valve in Manual mode
Delta Temperature
for Minimum Fan
Speed
Used in Auto mode to set the maximum delta
temperature when the Minimum Fan Speed will be used
Delta Temperature
for Maximum Fan
Speed
Used in Auto mode to set the minimum delta temperature
when the Maximum Fan Speed will be used
Cooling Liquid
Heat Capacity
(Cw) Value
Used in Auto mode to calculate the energy extracted by
the air to water heat exchanger unit (This value for pure
water is 4,187 Ws/kg and can be a lower value if
additives are included in the water.)
Delta temperature (Server Intake Temp/Server Exhaust Temp)
Delta temperature is calculated from the temperature difference between the server intake temperature
and server exhaust temperature. The server intake temperature, or cold air, is the air coming from the heat
exchanger unit and pushed through the fan units. The server exhaust temperature, or hot air, is the air
coming from the fan units and being pushed through the heat exchanger unit.
Example
Server intake
temperature Server exhaust
temperature