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InRoom Chilled Water Cooling System
The APC ACPCW40-150 is
a perimeter chilled water cooling unit for medium to
large data centers.
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.
- System used with a
cooling tower or other source of water.
- Factory sealed and
tested system.
- Eliminates the
need for field refrigerant piping

Chilled Water Cooling System
Efficiency and
Reliability
The use of energy
efficient, direct drive fans along with fewer moving
internal parts eliminate most potentials for
failure. Scroll compressor technology provides
unparalleled efficiency and constant, reliable
operation with an ability to withstand liquid
refrigerant slugging' which is a major cause of
compressor failure.
Refrigeration
System and Compressor
The refrigeration
system operates under a master controller for
greater efficiency and accuracy. Suction and
discharge pressures are monitored and electronically
controlled. The scroll compressors are
designed for year-round operation with a 15-year
life expectancy. The controller microprocessor
provides real-time suction and discharge pressure
readings reported by transducers installed on the
refrigeration system. For compressor protection, the
InRoom precision air conditioner utilizes charge
isolation and crank case heaters during off cycles.
This eliminates the threat of liquid refrigerant
migration that could lead to compressor slugging and
lubrication issues.

A look inside the APC ACPCW40-150 InRoom Chilled Water unit
Is
the APC ACPCW40-150 the best CRAC solution for your
cooling needs?

Our engineers can help you select the best CRAC
solution for your cooling needs.
Click here
or Call 1-800-638-2638 for a free CRAC project
consultation. |

APC ACPCW40-150
Precision Cooling System
The APC ACPCW40-150 offers many benefits:
Availability:
- Direct drive motors- Stress on bearings is
nearly eliminated, increasing useful life.
Allows integral fan/motor assembly to be factory
balanced, which lowers vibration and expedites
startup.
- Steam humidifier- Humidity is managed
through a self-contained steam canister
humidifier for maximum efficiency and ease of
maintenance. The pure-steam canister maintains
consistent capacity output, and requires very
little scheduled maintenance.
Total Cost of Ownership:
- Variable speed fans- Variable speed fans
reduce energy consumption during off-peak
cooling periods.
- Electric Reheat- Prevents overcooling during
dehumidification.
Serviceability
:
- Front service access- The system has full
service, front access for routine servicing of
components. Front access also narrows the
footprint of the system making it possible for
units to be placed side by side.
Manageability:
- Redundant group control- Allows up to 4
groups of precision air conditioners to
communicate with each other for redundancy,
demand fighting prevention, mode assist, and
global sharing of certain settings.
- Microprocessor controller- Utilizes
intelligent, active response control, and
real-time monitoring. The system is controlled
by a microprocessor providing high level control
functionality and human interface via a four
line, eighty character, alphanumeric display
- Network interface- Provides management by
connecting the device directly to the network
with a dedicated IP address, avoiding the need
for a proxy such as a server. Management is
available via Web browser, Telnet or SSH.
Notification features inform you of problems as
they occur.

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