Carrier A180218C, Installation Instructions Manual

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2
2. Introduction
The Infinity
R
System consists of several intelligent communicating components
which include the Infinity System Control (or User Interface), variable speed
furnace or FE fan coil, 2--stage AC and HP, (including Geothermal units),
multi--stage AC and HP, variable capacity HP and AC units, and Infinity System
Package units which continually communicate with each other via a four--wire
connection called the ABCD bus. Commands, operating conditions, and other data
are passed continually between components over the ABCD bus. The result is a
new level of comfort, versatility, and simplicity.
All Infinity System furnaces or fan coils are variable--speed and multi stage for
maximum flexibility, efficiency, and comfort. They support controlled ventilation,
humidification, dehumidification, and air quality control. Either an Infinity System
(communicating), or a standard single--stage 24VAC controlled outdoor unit may be
used.
When using conventional single--stage outdoor units, the Infinity System furnace or
fan coil provides the 24 volt signals needed to control them. When using
multi--stage conventional outdoor units or heat pumps, an Infinity System Network
Interface Module or ”NIM” (P/N SYSTXCCNIM01) may be required to provide
additional control outputs. Also, the NIM allows connection of a Carrier HRV or
ERV without the need for separate wall control.
When using a Carrier HRV or ERV with a zoned system, the Infinity System Zone
board allows connection of a Carrier HRV or ERV without the need for separate
wall control or NIM.
All system components are controlled through the wall mounted Infinity System
Control, which replaces the conventional thermostat and provides the homeowner
with a single wall control for all features of the system.
3. Quick Start
NOTE
: See Section 4 for installation instructions.