APC ACPCW40-150 User Manual

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InRoom Precision AC Tech Data Manual
20
InRoom Cooling Unit Configurations
Fluid Cooled (Glycol)
InRoom Fluid Cooled (Glycol) systems are 
completely charged and factory tested in a sealed 
system for reliability. In mid to low ambient 
climates, an economizer coil can be used to 
increase efficiency and extend compressor life. 
Economizer operation greatly reduces the energy 
consumption of the system. Water regulating 
valves control head pressure.
•  System is used with a fluid cooler.
•  Factory-tested as a sealed system.
•  Eliminates the need for field refrigerant 
piping.
•  No requirement for water treatment.
•  Economizer option provides high 
efficiency.
•  Low maintenance.
The InRoom Fluid Cooled (Glycol) 
System with Economizer is configured 
with both the glycol factory sealed system 
and an Economizer coil.  During cold 
ambient conditions, the compressorized 
system will shut down and utilize the cold 
outdoor air to cool the glycol system, 
rerouting it from the heat exchanger to the 
Economizer coil for efficient operation.  
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Fluid Cooled (Glycol) System 
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Fluid Cooled (Glycol) System with Economizer