AAON VCCX-454 - Appendix A: System Configuration; Options

71VCCX-454 Controller Technical Guide
APPENDIX A: SYSTEM CONFIGURATION
Options
The VCCX-454 Controller can be used as a stand-alone system
(one VCCX-454 Controller only), connected together on an
interconnected system (multiple VCCX-454 Controllers only),
or connected together on a network system (multiple VCCX-454
Controllers, VAV/Zone Controllers, or add-on controllers) to form
a complete controls system that can be programmed and monitored
through Prism II.
Operator Interfaces
Operator interfaces are designed to provide for programming and
monitoring of VCCX-454 Controller(s) and/or any VAV/Zone or
add-on controller(s) connected to the system.
Stand-Alone System
The stand-alone system is used with a single VCCX-454 Controller.
Programming and status monitoring are accomplished through
Prism II.
Interconnected System
The interconnected system is used when there are multiple VCCX-
454 Controllers. With this system, connect the controllers together
using AAON communications wire or 18-gauge, two-conductor,
twisted pair with shield wire (Belden #82760 or equivalent). This
allows for all controllers that are connected on the communications
loop to be programmed and monitored through Prism II connected
on the communications loop.
Networked System
For a networked single loop system, a range of one to 59 VCCX-454
Controllers sharing information, connect the controllers together
using AAON communications wire or 18-gauge, two-conductor,
twisted pair with shield wire (Belden #82760 or equivalent). The
networked single loop system requires either a MiniLink PD
communication interface and/or CommLink communication
interface be purchased and wired into the communications loop to
the VCCX-454 Controllers.
The networked multiple loop system is used for a system with
more than 59 VCCX-454 Controllers and/or are using multiple
VCCX-454 Controllers that are connected to VAV/Zone controllers.
These groups of controllers are broken into multiple “local loops”
that connect to each other via the “network loop.” Each MiniLink
PD handles its specic local loop’s communications requirements.
The CommLink communications interface handles all the
communications between the individual MiniLink PDs to form
the network loop. Up to 60 local loops can be connected with this
conguration. This provides the capability for over 3,500 controllers
to be networked.