IBM Rear Door Heat eXchanger V2, Installation And Maintenance Manual

Page: 26 / 104

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