APC INROOM ACPSC3000 Instructions d'exploitation télécharger pdf (Page 11)

InRoom CW/DX – Operating Instructions 11

Air ﬂ ow (D)

A distinction is made between downﬂ ow and upﬂ ow cooling units in respect of air ﬂ ow. On downﬂ ow units the

room air is drawn in to the cooling units from above and passed down into the raised ﬂ oor void. On upﬂ ow

units the room air is drawn in from the front side of the cooling unit and passed upward.

Upﬂ ow

supply air

room / return air

supply air

Downﬂ ow

Number of refrigerant circuits

The cooling units exist with either one or two refrigerant circuits. This concerns the cooling systems A, ACW,

G, GCW and GE.

The two-circuit units are equipped with two individual refrigerant circuits which are identical.

The two-circuit G-, GCW- and GE-units only have one water circuit which contains - except two condensers

- the same number of components as the single circuit version.

All ACW-, GCW- and GE-units contain only one free cooling CW/GE-coil.

The maximally available pressure at the airside is reduced by double heat exchanger coils.

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APC INROOM ACPSC3000 Instructions d'exploitation Page 11