EQUIPMENT DOCUMENTATION
Since each installation is unique, specific documentation is provided with every system. This documentation
describes the equipment used in your system, and provides wiring and interconnection information. The
documents usually supplied with each system are listed in Table A.
IMPORTANT!: Do not discard documents after the installation is complete. They are required for testing,
inspection, and maintenance.
In addition to system-supplied documents, each installation will have specific site drawings. Site drawings show the
location of all 2120 equipment required for an installation, as well as the amount and type of wire required. These
site drawings may include either architectural drawings, riser diagrams, or both.
The site drawings and system-supplied documents provide sufficient information to completely install a 2120
system. We will discuss the system-supplied documents one-at-a-time.
Each specification sheet is divided into different areas. Some of the information on these sheets affects the way in
which the system is installed; other information is used during inspection, maintenance, and repair of existing
systems. For the purpose of this manual, the numbered areas on each sheet indicate information that affects
system installation.
In addition to the numbered areas, the letters A, B, or C are written in the area adjacent to specific system features.
These letters indicate the following:
A - This feature always affects external wiring. Refer to system wiring and interconnection drawings for
details.
B - This feature may affect external wiring. Refer to system wiring and interconnection drawings for details.
C - This feature affects unit backbox installation. See the section of this manual dealing with backboxes for
details.
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