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2 Supplemental Installation Information for APC Chillers
Typical Piping — Chiller to Cooling
Distribution Unit (CDU)
CHILLER
CDU
RC
Note
Components inside dashed lines are included with the chiller, InfraStruXure InRow RC,
and CDU. All other items (valves, piping, etc.) are customer-supplied.
Pressure reducing/fill valve
Pressure gauges/petcocks
Air separator and vent*
Heat exchanger
Flex connections
Flow switch
Isolation valves
Balance valve/drain plug
Strainer/blow-down valve
Storage tank**
Expansion tank
3-way valve
Dual pump
Bypass line
Electric heater
Flow meter
Air vent connection port
* Install at the highest point in the system.
**To provide the coldest possible water to the load, install the optional storage
tank on the leaving side of the chiller