Environmental Requirements - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Overview
The following sections provide detailed instructions for these installation
procedures. Follow the procedures in the order in which they are presented.
Environment
The control unit must be installed on a backboard. The placement of the
backboard, and the control unit on it, requires careful consideration. Make
sure you install the backboard in an area that meets all of the environmental
requirements listed in Table 2–1.
Table 2–1. Environmental Requirements
Operating o
40
Optimal temperature: 60 o F (15.6
Temperatures
Humidity 20%–80%
Airborne
Do not expose the control unit to moisture, corrosive gases, dust,
Contamination
chemicals, spray paint, or similar material.
Allow at least 1 in. (2.54 cm) on the right and left sides of the control
Ventilation
unit and 12 in. (30.48 cm) minimum, above and below it, to prevent
overheating.
Do not place the control unit near extreme heat sources (for example:
furnaces, heaters, attics, or direct sunlight).
Do not expose the control unit to devices that generate electrical
Electrical Fields
currents causing interference (such as arc welders or motors).
Basic carrier: 500 Btu/hr
Heat Dissipation
Basic carrier: with one expansion carrier 1000 Btu/hr
Basic carrier: with two expansion carriers 1500 Btu/hr
!
WARNING:
Do not install the control unit outdoors.
2–2
Installing the Control Unit
o o o
–104 F (4 –40 C)
o
C)