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21InRoom Precision AC Tech Data 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.
na2843a
Fluid Cooled (Glycol) System with
Chilled Water Cooling System
na2844a
Chilled Water Cooling System