Model 1164-95X rear door heat exchanger
Learn about the specications of the 1164-95X rear door heat exchanger (feature code ECR2).
Model 1164-95X rear door heat exchanger specications
Table 53. Dimensions for the 1164-95X rear door heat exchanger
Width
1
Depth Height Weight (empty) Weight (lled)
600 mm (23.6 in.) 129 mm (5.0 in.) 1950 mm (76.8 in.) 39 kg (85.0 lb) 48 kg (105.0 lb)
1. The width is the inside width of the machine when installed in the U space of the rack. The width of the front
bezel is 482 mm (19.0 in.).
Water specications
• Pressure
– Normal operation: <137.93 kPa (20 psi)
– Maximum: 689.66 kPa (100 psi)
• Volume
– Approximately 9 liters (2.4 gallons)
• Temperature
– Water temperature must be above the dew point in the data center
– 18°C ± 1°C (64.4°F ± 1.8°F) for ASHRAE Class 1 Environment
– 22°C ± 1°C (71.6°F ± 1.8°F) for ASHRAE Class 2 Environment
• Required water flow rate (as measured from the supply entrance to the heat exchanger)
– Minimum: 22.7 liters (6 gallons) per minute
– Maximum: 56.8 liters (15 gallons) per minute
Heat exchanger performance
A heat removal of 100% indicates that an amount of heat that is equivalent to that generated by the
devices has been removed by the heat exchanger and the average air temperature leaving the heat
exchanger is identical to that entering the rack (27°C (80.6°F) in this example). Heat removal in excess of
100% indicates that the heat exchanger not only removed all of the heat that was generated by the
devices, but further cooled the air so that the average air temperature that is leaving the rack is actually
lower than air temperature that is entering the rack.
To help maintain optimum performance of the rear door heat exchanger and provide proper cooling for all
rack components, you must take the following precautions:
• Install ller panels over all unoccupied bays.
• Route signal cables at the rear of the rack so that they enter or exit the cabinet through the top and
bottom air baffles.
• Bundle signal cables together in a rectangle so that the upper and lower air-baffle sliders are closed as
far as possible. Do not bundle signal cables together in a circular formation.
Site and hardware planning
47
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