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2. Introduction
The Evolutionr System consists of several intelligent communicating components
which include the Evolutionr Connex Contro l (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 Evolution Connex
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 Evolution 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 Evolution
System (communicating), or a standard single--stage 24VAC controlled outdoor unit
may be used.
When using conventional single --stage outdoor units, the Evolution System furnace
or fan coil provides the 24 volt signals needed to contro l them. When using
multi --stage conventional outdoor units or heat pumps, an Evolution System
Network Interface Module or ”NIM” (P/N SYSTXBBNIM01) may be required to
provide additional control outputs. Also, the NIM allows connection of a Bryant
HRV or ERV without the need for separate wall control.
When using a Bryant HRV or ERV with a zoned system, the Evolution System Zone
board allows connection of a Bryant HRV or ERV without the need for separate
wall control or N IM.
All system components are controlled through the wall mounted Evolution Connex
Contro l, which replaces the conventional thermostat and provides the homeowner
with a single wall control for all features of the system.
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