IBM XIV Gen3 Series, Planning Manual

Page: 105 / 126

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
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
Expansion
tank
Distribution
manifolds
Distribution
manifolds
Distribution
manifolds
Quick
connect
couplings
Quick
connect
couplings
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
Pressure relief
valve (based on
maximum pressure
application)
Pressure relief
valve (based on
maximum pressure
application)
Supply
Supply
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)
CS
CS
CS
Supply CS
CS
Expansion
tank
xiv10120
Quick
connect
couplings
Figure 24. Primary and secondary cooling loops
Chapter 10. Planning for the rear-door heat exchanger
81