Owner manual

IT Cooling
LogiCool™ OnRak
IT Cooling
7
Technical, Installation and Maintenance Manual :6912497 V1.5.0 02_2013
Standard Features
The OnRak unit comes with a series of standard features.
Standard Features
LOR 6042U-C0 28-0
LOR 6042U-C0 33-0
LOR 8042U-C032-0
LOR 8042U-C038-0
EC axial fans
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EC fan node
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0-10V 2 or 3 way chilled water valve
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Advanced Airetronix controls
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Water temperature sensor
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Tri coloured LED (Alarm status) for easy fault detection
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Rack mounted temperature / humidity sensor
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Leak detection
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Bleed and drain valves
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Features available
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Construction
The cabinet shall be manufactured with galvanised sheet steel to provide a smooth
aesthetically pleasing finish. The galvanised sheet steel panels shall be coated with an
epoxy baked powder paint to provide a durable finish.
Standard unit colour shall be Black Grey to RAL 7021.
Fan & Motor Assembly
300mm diameter axial fans with EC motors mounted in bell mouth housing shall be
provided to ensure optimum efficiency.
The fan section shall be designed as a hot swap assembly which can be changed
quickly minimising downtime during replacement or maintenance.
Compact Cooling Coil
3/8” plain tube cooling coil with 1.8mm fin pitch and hydrophilic fins
0-10 Volts DC Chilled Water
3 Way Valve
A 0-10 VDC chilled water 3 way regulating valve shall be fitted. This shall be used to
govern the chilled water going to the coil when there is a demand for cooling.
or
0-10 Volts DC Chilled Water
2 Way Valve
A 0-10 VDC chilled water 2 way regulating valve shall be fitted. This shall be used to
govern the chilled water going to the coil when there is a demand for cooling.
Bleed and Drain Valves
Valves shall be factory fitted to easily bleed the system of any air and drain water for
maintenance.
Airetronix Controls
Advanced Airetronix controls strategy with integrated system control, free cooling mode,
dew point management, and fan and alarm management shall be provided.
Water Temperature Sensor
A water temperature sensor shall be fitted to the water inlet pipework.
Tri colour LED for Easy
Fault Detection
LED indication for alarm status shall be incorporated in the front face of the OnRak unit
(signals Healthy, Non Critical and Critical Alarm respectively) Green, Yellow and Red.