mc²56 MKII Technical Manual
V5.10.2/1
32
Chapter 2: Installation
Installing the Nova73
Installing the Nova73
Both the
core are designed to be mounted in a 19” rack.
All plug-in connectors are located at the front or rear of the unit. Therefore, when using 19’’ racks with front doors
please leave enough room for the cables.
Cables plugged into the front of the unit can be ducted backwards underneath the unit for distribution within the
rack.
Warning
Use the rack-rails supplied to mount the Nova73. The 19” frame
MUST NOT
carry the complete weight of the
unit.
Dimensions and Weight
Frame:
Nova73 HD
Nova73 Compact
Width
19”
483mm (front plate)
440mm (chassis)
Height
10RU
7RU
Cable Duct
1RU below the frame is required for cable ducting and ventilation.
Depth (including rear
connectors and system
locking devices)
510mm
489mm
Weight
16.25 Kg (one PSU fitted)
Each PSU weighs 4.25 Kg
14.5 Kg (two PSUs fitted)
Each PSU weighs 2.86 Kg
Ambient Conditions/Air Conditioning
Proper operation of the Nova73 can only be guaranteed at an ambient temperature between 10° C and 35° C and
a relative humidity between 15% and 85% (not condensing).
When the Nova73 is out of action, it can be stored at a temperature between 0° C and 40° C and a relative
humidity between 10% and 85% (not condensing).
The Nova73 is cooled actively by built-in fans. The housing of the Nova73 is perforated at the top and at the
bottom to guide air flow in and out of the unit; the air stream is guided from bottom front to top rear. Ensure that
the cooling air stream is guided to cool the unit efficiently.
The air-flow rate depends on the mounted components. To calculate the air conditioning required, assume a
maximal air-flow rate of approximately 200 m³/h.
The life cycle of a fan is typically 70.000 operating hours (at a maximum ambient temperature of 40° C). For
details on how to change a fan, see
.
Warning
Take care that no devices or cables obstruct the flow of air thereby hindering cooling.
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