IBM Rear Door Heat eXchanger V2 Installation And Maintenance Manual page 28

Figure 7 shows an example of an off-the-shelf modular coolant distribution unit. The
actual number of heat exchangers that are connected to a secondary loop depends
on the capacity of the coolant distribution unit that is running the secondary loop.
Figure 7. Coolant distribution unit that uses off-the-shelf supplier solutions
18
Rear Door Heat eXchanger V2: Installation and Maintenance Guide
Shutoff
valves
Secondary side
temperature feedback
for controlled water
temperature to
specification
Building
chilled
water
Supplier-built coolant distribution
unit (CDU) suggested features:
- Temperature and flow metering (monitoring)
- Leak detection or water level sensing and shutdown
- Local and remote monitoring and control
- Access port for filling and water treatment
CS
Supply
Circuit setter
flow control
valves
CS
Return
Pressure relief
Optional low
valve (based on
impedance
maximum
quick-connect
pressure
coupling
application)
Flowmeter
CS
T
FM
Supply
CS
Return
Distribution
manifolds
Rear door
heat exchangers
CS
CS
CS
Flexible hoses,
maximum length
15.24 meters (50 feet)
Quick-connect
couplings