IBM XIV Gen3 Series

Rear door
heat exchangers
T
Return
Distribution
manifolds
Quick-
connect
couplings
Flexible hoses,
maximum length
15.24 meters (50 feet)
Supply
CS
CS
CS
Secondary side
temperature feedback
for controlled water
temperature to
specification
Supplier-built central distribution
unit (CDU) suggested features:
- Temperature and flow metering (monitoring)
- Leak detection or water level sense and shutdown
- Local and remote monitoring and control
- Access port for filling and water treatment
Return
Supply
CS
CS
Shutoff
valves
Circuit setter
flow control
valves
Building
chilled
water
Pressure relief
valve (based on
maximum pressure
application)
CS
CS
xiv10122
Figure 22. Cooling distribution unit that uses a water chiller unit to provide conditioned water
Chapter 10. Planning for the rear-door heat exchanger 79