APC INROOM ACPSC3000 Provozní pokyny stáhnout pdf (Strana 13)

InRoom CW/DX – Operating Instructions 13

ACW-System

The ACW system is a combination of

both the ”A” and ”CW” systems with two

cooling coils. The controller manages

the ACW system to allow the air cooled

”A” system to operate as standby to the

”CW” chilled water system or vice versa

to give added security and back up to

the computer room.

NOTE: Both systems may not run si-

multaneously. This can be prevented

by deﬁ ning a cooling priority at the

controller.

GCW-System

The GCW system is a combination of

both the ”G” and ”CW” systems with two

cooling coils. The controller manages

the GCW system to allow the glycol

cooled or condenser water ”G” system

to operate

as standby to the ”CW” chilled water

system or vice versa to give added

security and back up to the computer

room.

NOTE: Both systems may not run si-

multaneously. This can be prevented

by deﬁ ning a cooling priority at the

controller.

CW-System

When a central chilled water system is

the appropriate method of heat rejection,

cooling units 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 ﬂ ow

rate is regulated by a 2 or 3-way chilled

water valve, controlled by the controller, to

precisely maintain conditions in the critical

space.

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