Model MRC44 Page: 13
© 2002 Xantech Corporation
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 = 1-3/4" (44.5mm) in height].
6. In multi-zone installations, you will have large bundles of wire and cable to accommodate audio, video and
speaker connections. Be sure to allow enough room for the leads and dress them in such a manner so as
not to block airflow.
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)
RJ45
Connector
Cat 5
Cable
MRC44
Keypad
Ground
Lug
To Earth Ground
Figure 6 - Mounting and Installing the MRC44 Keypad
