Damper Control Module (Zoning Systems Only) - Bryant Evolution Connex Control Installation Instructions Manual

eliminate potential interference. The shield wire should be connected to the C terminal, or
ground, AT THE INDOOR UNIT, ONLY. The shield wire should NOT be connected to any
terminal at the Evolution Connex Control. Connecting the shield to ground at both ends can
cause current loops in the shield, reducing shield effectiveness.
Connect one pair of the two-pair (minimum) cable to the A and B communication terminals,
and another pair to the C and D terminals at both ends of the cable. The shield wire should
ONLY be connected at the indoor equipment ground or C terminal. Note that some outdoor
units only require the A and B connections. See the outdoor unit installation instructions for
more information.
"Daisy chain" wiring, where each communicating component is wired one after another, rather
than all components connecting a in "star" fashion to one point, is preferred. For wiring runs
over 100 feet, terminating with a 100 ohm resistor at each end of the chain can help to avoid or
mitigate electrical noise problems.

4.4.2. Damper Control Module (zoning systems only)

When used, all wiring is run back to the Evolution Connex Damper Control Module
(SYSTXBB4ZC01). Select a location near the furnace or fan coil where wiring from the
control, each Remote Room Sensor or Smart (Zone) Sensor, each damper actuator, and the
equipment itself can come together easily. The Damper Control Module is approved for indoor
use only and should never be installed with any of its components exposed to the elements. The
Damper Control Module (and zone dampers) may be installed in any area where the
temperature remains between -4°F to 158°F (-20°C to 70°C), and there is no condensation. The
cover must be installed to prevent damage from other sources. Do not locate where it will be
accessible to children. It may be mounted in either vertical or horizontal position. Remember
that wiring access is likely the most important consideration.
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
To prevent possible damage to the Damper Control Module, DO NOT mount on
plenum, ductwork, or flush against furnace or fan coil.
CAUTION
!
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