Model MRC44 | Page: 13 |
INSTALLATION
MRC44 CONTROLLER/AMPLIFIER PHYSICAL LOCATION AND MOUNTING (BASIC/ADVANCED)
When you mount the MRC44 Controller, you should plan its location carefully. Pay close attention to each of the following factors:
1.The amplifier is convection cooled. That is, it depends on the natural free flow of air up through the slot perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for adequate cooling.
2.If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above the top cover. Be sure there are large openings in the shelf below the unit and in the cabinet to allow the entry of cool air and the escape of warm air.
3.If the cabinet contains other heat generating components or you are using several MRC44's in a large multi- zone system, you will have to pay even closer attention to adequate ventilation.
4.Do not hesitate to use fans (quiet, boxer type), if necessary, to ensure a constant flow of air through the MRC44's and the other heat generating components.
5.When mounting in a 19" (483mm) rack, adding a single RU (Rack Unit) spacer above and below the MRC44 will improve convection in heavy use applications.
[One Rack Unit size =
6.In
7.The MRC44 is designed for mounting on flat horizontal surfaces. When mounting into a 19" rack, use a rack shelf or drawer.
8.Do not remove chassis feet. They are necessary to provide proper ventilation.
NOTE: You should consider some sort of rear support for rack mounted units when used in mobile
applications or when located in seismically active areas.
(EXPANDED)
Place Controllers on separate shelves or provide 2 inches of space between Controllers for ventilation.
MRC44 KEYPAD PHYSICAL LOCATION AND MOUNTING (BASIC/ADVANCED/EXPANDED)
MRC44
Keypad
RJ45 |
Connector |
Ground
Lug
To Earth Ground
Cat 5
Cable
Figure 6 - Mounting and Installing the MRC44 Keypad
© 2002 Xantech Corporation