Trane Tracer ZN.520

CNT-SVX04A-EN
16
Binary outputs
General description
Refer to Tables 4 and 5 on page 13 for
terminal identification and typical usage.
The Tracer ZN.520 zone controller is a high-end modulating controller that supports
the economizer and discharge air tempering functions of terminal products. The
controller may be configured and applied to fan coil, blower coil, or unit ventilator
configurations. The configuration of binary outputs is largely based on the unit
configuration. Refer to Table 8 for possible functions for each binary output.
Binary outputs are configured to support the following:
■ Three fan stages (when one or two fan stages are present, medium fan
speed can be configured as exhaust fan)
■ One hydronic cooling stage
■ One hydronic heating stage (dehumidification requires this to be in the
reheat position)
■ One DX cooling stage
■ One- or two-stage electric heat (dehumidification requires this to be in the
reheat position)
■ Face and bypass damper
■ Modulating outdoor air damper
■ One baseboard heat stage
Table 8 Configuration of binary outputs
Note
1
: For Tracer ZN.520 zone controller units configured and applied as 2-pipe hydronic heat/cool
changeover, terminals J1-5 and J1-6 are used to control the primary valve for both heating and cooling.
J1-1 Fan high
J1-2 Fan medium/Exhaust fan
J1-3 Fan low
J1-4 (Key)
J1-5
Cool valve—open, or 2 position valve, or DX compressor output
1
J1-6
Cool valve—close
1
J1-7 Face and bypass damper—open
J1-8 Face and bypass damper—close
J1-9
Heat valve—open, or 2 position valve, or 1
st
electric heat stage
1
J1-10
Heat valve—close or 2
nd
electric heat stage
1
J1-11 Outdoor air damper—open
J1-12 Outdoor air damper—close
TB4-1 Generic/Baseboard heat output
TB4-2 24 VAC