IBM Rear Door Heat eXchanger V2 Installation And Maintenance Manual page 26

Figure 5 shows a typical cooling solution and identifies the components of the
primary cooling loop and the secondary cooling loop.
Secondary side
temperature feedback
for controlled water
temperature to
specification
Flow
Loop heat
control
s
exchanger
valve
Building
chilled
water
supply
Secondary side
temperature feedback
for controlled water
temperature to
specification
Flow
Loop heat
control
s
exchanger
valve
Primary
cooling
loop
(building
chilled water)
Secondary side
temperature feedback
for controlled water
temperature to
specification
Flow
Loop heat
control
s
exchanger
valve
Shutoff
valves
Figure 5. Primary and secondary cooling loops
16
Rear Door Heat eXchanger V2: Installation and Maintenance Guide
Optional low
Pressure relief
impedance
valve (based on
quick-connect
maximum
coupling
Flowmeter
pressure
Expansion
application)
tank
T
CS
FM
Supply
Redundant
CS
pumps
Return
Distribution
manifolds
Optional low
Pressure relief
impedance
valve (based on
quick-connect
maximum
coupling
Flowmeter
pressure
application)
Expansion
tank
T
CS
FM
Supply
Redundant
CS
pumps
Return
Distribution
manifolds
Optional low
Pressure relief
impedance
valve (based on
quick-connect
maximum
coupling
Flowmeter
pressure
Expansion
application)
tank
T
CS
FM
Supply
Redundant
CS
pumps
Return
Distribution
manifolds
CS
Supply
Circuit setter
flow control
valves
CS
Return
Rear door
heat exchangers
Quick-connect
couplings
CS
CS
Secondary cooling
CS
(conditioned water)
Flexible hoses,
maximum length
15.24 meters (50 feet)
Rear door
heat exchangers
Quick-connect
couplings
CS
CS
Secondary cooling
CS
(conditioned water)
Flexible hoses,
maximum length
15.24 meters (50 feet)
Rear door
heat exchangers
Quick-connect
couplings
CS
CS
Secondary cooling
CS
(conditioned water)
Flexible hoses,
maximum length
15.24 meters (50 feet)
loop 1
loop 2
loop 3