IBM XIV Gen3 Series, Руководство по планированию

Страница: 115 / 126

Table 42. Eaton-Williams cooling distribution unit specifications (continued)
Performance Properties
Pump capacity (design flow) 240 L/min (63.4 GPM)
Maximum pump head pressure 355 kPa (51.5 psi) at design duty, excluding
cabinet losses
Coolant (liquid) type Chilled water (with up to 30% glycol)
Primary liquid connections 1 1/2 in. flex tail for sweat connection, top
or bottom
Secondary liquid connections 3/4 in. quick connects, hydraulic ISO-B
Unit internal primary circuit liquid capacity Approximately 10.0 liters (2.6 gallons)
Unit internal secondary circuit liquid
capacity Approximately. 32.0 liters (8.5 gallons)
Noise < 55 dBA at 3 meters
Electrical
Power supply 200 - 230 V, 3Ø, 50/60 Hz or 400 - 480 V, 3Ø,
50/60 Hz
Maximum power consumption 5.6 kVA at 480 V, 4.9 kVA at 208 V
Physical
Height 1825 mm (72 in.)
Width 800 mm (31.5 in.)
Depth 1085 mm (43 in.)
Weight (empty) 396 kg (870 lb)
Weight (filled) 438 kg (965 lb)
Note: Other industrial cooling distribution units can be used in a secondary
cooling loop with the rear-door heat exchanger, if they meet the specifications and
requirements that are described or referred to in this document.
Maintenance schedule
Maintenance tasks are required at certain time intervals.
Task Schedule
Check the manifolds for temperature (make sure that the
top of the manifolds is cool) and sounds of air in the
system to ensure that the exchanger is correctly filled. One month after installation
and again annually
Inspect the heat-exchanger fins for air blockage at the fins
(such as dust, dirt, and debris) Annually
Inspect the entire length of the supply hose and return hose
for damage, age cracks, and kinks. Be sure to inspect at the
door and outside of the rack. Annually
Chapter 10. Planning for the rear-door heat exchanger
91