Catalogue

32 CAB-PRC001-EN
Controls
The control interface is intended to be used with a field-supplied, low-voltage thermostat or
controller. The control box contains a relay board which includes a line voltage to 24-volt
transformer, quiet contactors (for electric heat units), and an optional disconnect switch. All end
devices are wired to a low-voltage terminal block and are run-tested, so the only a power
connection and thermostat connection is needed to commission the unit. Changeover sensors and
controls are provided whenever a change-over coil is selected. When N.O. valves are selected,
inverting relays are provided for use with standard thermostats.
The CSTI adapter board provides all the hookups of the standard adapter board, but in addition,
provides hookups for valve control (main and auxiliary coils), electric heat control, and damper
control. Screw terminal blocks provide convenient access to fan controls and to end device control.
In addition, a courtesy 10-Vdc supply is provided for use with an external potentiometer or rheostat.
The 10-Vdc supply supports up to 10 mA draw.
Tracer Controls
The Tracer family of controllers (Tracer ZN010, ZN510, ZN520, and UC400) offer the combined
advantages of simple and dependable operation with the latest Trane-designed controller.
Standard control features include options normally available on more elaborate control systems.
All control options are available factory-configured or can be field-configured using Trane service
software. For more detailed information, refer to CNT-IOP-1 (for Tracer ZN010 or ZN510) or
CNT-SVX04A-EN (for Tracer ZN520), or UNT-SVX07D-EN (for Tracer UC400), or the most recent
version of the publication
Tracer ZN010, Model Number digit 30 = E
Tracer ZN010 is a stand-alone microprocessor controller.
Tracer ZN510, Model Number digit 30 = F
Tracer ZN510 can be used as either a stand-alone or communicating microprocessor controller.
Tracer ZN520, Model Number digit 30 = G
Tracer ZN520 controller can be used in a stand-alone application or as part of a Trane Integrated
Comfort™ System (ICS).
Figure 6. CSTI adapter board field connections
1. VSP 10V
2. VSP 0–10V
3. VSP DC COM
1. 24 Vac Y (hot)
2. 24 Vac Y (gnd)
3. High
4. Medium
5. Low
6. V1Op/Cooling
7. V1C1 (not std)
8. Not used
9. Not used
10. V2Op/EH1St/Heating
11. V2C1/EH2St (not std)
12. Damper Open
13. Dmp Cl (not std)
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CAB-PRC001-EN.book Page 32 Tuesday, May 8, 2012 10:11 AM