Primary And Secondary Cooling Loops - IBM XIV Gen3 Series Planning Manual

Flow
control
valve
Building
chilled
water
supply
Flow
control
valve
Primary cooling
loop
(building chilled water)
Flow
control
valve
Figure 24. Primary and secondary cooling loops
Manifolds and piping
Manifolds that accept large-diameter feed pipes from a pump unit are the
preferred method for splitting the flow of water to smaller-diameter pipes or hoses
that are routed to individual heat exchangers. Manifolds must be constructed of
Secondary side
Pressure relief
temperature feedback
valve (based on
for controlled water
maximum pressure
temperature to
application)
specification
Loop heat
s
T
exchanger
Redundant
pumps
Secondary side
Pressure relief
temperature feedback
valve (based on
for controlled water
maximum pressure
temperature to
application)
specification
Loop heat
s T
exchanger
Redundant
pumps
Secondary side
Pressure relief
temperature feedback
valve (based on
for controlled water
maximum pressure
temperature to
application)
specification
Loop heat
s T
exchanger
Redundant
pumps
CS
Supply
Shutoff
CS
valves
Return
Rear door
Quick
heat exchangers
connect
couplings
Expansion
tank
CS
CS
CS
Supply CS
CS
Return
Flexible hoses,
Distribution
maximum length
manifolds 15.24 meters (50 feet)
Rear door
Quick
heat exchangers
connect
couplings
Expansion
tank
CS
CS
CS
Supply CS
CS
Return
Flexible hoses,
maximum length
Distribution
15.24 meters (50 feet)
manifolds
Rear door
Quick
heat exchangers
connect
couplings
Expansion
tank
CS
CS
CS
Supply CS
CS
Return
Flexible hoses,
maximum length
Distribution
15.24 meters (50 feet)
manifolds
Circuit setter
flow control
valves
Chapter 10. Planning for the rear-door heat exchanger
Secondary cooling
loop 1
(conditioned water)
Secondary cooling
loop 2
(conditioned water)
Secondary cooling
loop 3
(conditioned water)
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