C h a p t e r 4 : H a r d w a r e I n s t a l l a t i o n 4 3
Enclosure Sizing and Unit Positioning
Careful enclosure sizing is important for proper heat dissipation and easy installation and
maintenance. For efficient convection cooling, clearance space is needed around the
ePro PS unit and the unit should be mounted in a
vertical
position. Convection cooling
draws a vertical column of air upward over internal circuitry through the vents in the unit.
In all installations, the cooling air must not exceed the maximum specified ambient
temperature. This determination must be made for the maximum expected plant
temperature (maximum temperature of the air surrounding the enclosure).
•
Maintain recommended clearance space above and below the ePro PS unit (refer to
the following table for details)
•
Avoid mounting other heat-generating equipment near the ePro PS unit. If no other
location is available, mount the equipment beside or behind the ePro PS unit. If
side/rear space is not available, it is preferable to mount the other equipment above
rather than below the ePro PS unit. Be sure to maintain the recommended clearance
space area between the ePro PS unit and the other equipment.
•
Leave room for easy access to circuit boards, wiring and cable connections, and for
regular maintenance.
Figure 4: Unit Mounted in Cabinet with Clearance Space
