High Density Server Cabinet: Cabinet Specifications

The i -ACE unit incorporates a finned heat exchanger to cool a re-circulating airflow from an adjacent server cabinet. The i -ACE unit may be mounted on either side of a server cabinet, or, when sandwiched between two cabinets, can serve both at 50% cooling capacity each.

The chilled water flows through the heat exchanger which comprises two coil sections, each piped independently and fitted with separate isolation valves enabling the unit to continue to run at 50% capacity in the unlikely event of a circuit failure.
The exchanger construction is copper tube with aluminium fin, and galvanised steel casework.

The air movement is provided by up to five separate fans which can be hot swapped in service. On smaller cooling duties
fewer fans can be installed. Air return baffles are positioned at the rear of every fan aperture to stop leakage in the event of
a fan cassette being removed. The fans are inserted and removed at the front of the unit with access only available via a
lockable access panel.

The removable carriage containing the fan includes overload protection for each individual fan. There are handles to aid the
removal of individual fan cassettes.

Power supply
The equipment within the i -ACE unit operates on 24V dc. A switch mode power supply is installed in the top section of the
unit. This has an input supply range of 85 – 270V (0-66Hz) (or 120 – 400V dc). At full load the i -ACE unit consumes 300W
of power.

Monitoring
An independent monitoring system is provided based on the i -BOX technology. Each mode has up to two sensors as
follows:

• High Density Server Cabinet
• Cabinet Specifications
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