APC ACPDX21-86 User Manual

The InRoom Fluid Cooled (Glycol) System 
with Chilled Water System is a combination of a 
factory sealed glycol system and a chilled water 
system and contains two separate cooling coils.  
The controller microprocessor manages the 
systems to allow the glycol system to operate as 
standby to the chilled water system or vice 
versa, giving the added security of back-up 
cooling to the computer room.

Chilled Water
InRoom Chilled Water systems are available in a 
packaged fan-coil design.  Room air is 
recirculated through the cooling coil, which 
transfers the heat load directly into the chilled 
water ring main.  Water flow rate is regulated by 
a 2- or 3-way valve controlled by the controller 
microprocessor. Cooling towers are used as a 
source of heat rejection and can be used to serve 
multiple indoor units. Towers utilizing outdoor 
air require water treatment.

•  The system is used with a cooling tower or 

other source of water.

•  Factory sealed and tested system.
•  The need for field refrigerant piping is 

eliminated.

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