HP Modular Cooling System Guide de démarrage rapide télécharger pdf (Page 71)

Facility planning for implementation 71

Coolant requirements

General thermal requirements

The following table lists the coolant requirements that the facility must meet in order to support an

MCS-200/100 installation. In addition to the requirements listed, the coolant must meet the requirements

prescribed in the "Acceptable water quality specifications (on page 78)" section.

Parameter Value

Maximum heat load operational chilled water temperature

Minimum

Maximum

7°C (45°F) minimum

13°C (55°F) maximum

Chilled water flow rate (maximum)

MCS-100

MCS-200

Approximately 80 lpm(21 gpm)

Approximately 159 lpm (42 gpm)

Inlet/outlet water connections to MCS-200/100 2 (2)

1.75-inch BSPP (parallel-thread)

Inlet/outlet hose connections to facility

1.25-inch BSPP (parallel-thread)

Hose insulation thickness

6.3 mm (0.25 inch), min. closed cell

Condensate discharge tubing

3 m (118 inch) length,

8 mm (0.31 inch) outer diameter,

6 mm (0.24 inch) inner diameter

Overflow tubing

3 m (118 inches) length,

15 mm (0.59 inch) outer diameter,

9 mm (0.35 inch) inner diameter

Chilled water pressure differential at required flow

1 - 1.5 bar (15 – 22 psi) required

Cooling capacity

MCS-100

MCS-200

30 kW maximum

50 kW maximum

(Performance is affected by water

temperature)

For more information, see "Determining heat load capacities (on page 72)."

For more information, see "Plumbing considerations (on page 46)."

Perform the following steps to confirm that the coolant requirements and corresponding resources necessary

for effective implementation of the MCS-200/100:

1. Determine the maximum server heat load capacity.

2. Determine the desired server intake temperature. For more information, see the Rack Cooling Sizing

Chart in "Cooling loop sizing (on page 72)."

3. Consult the building cooling system administration, and obtain the maximum coolant temperature, for

example, 12.5ºC.

4. Find the amount of coolant required. For more information, see "Coolant source planning (on page

45)."

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