Catalogue

UV-PRC003-EN 69
Controls
Tracer ZN520 Zone Controller
Features Include
• Automatic fan-speed reset
• Automatic ventilation reset
• Active dehumidification
• Manual output test
• Filter maintenance
• Master slave
• Water valve override
• Freeze avoidance
• Interoperability
• Three generic I/O ports
The Tracer ZN520 is a factory-installed, -tested and -commissioned LonTalk
®
control board
designed to provide control of the classroom unit ventilator and the fan-coil products (see
Figure 26).
The Tracer ZN520 controller is designed to be used in the following applications:
• As part of the Trane Tracer Summit building automation system, the Tracer ZN520 becomes an
important part of the Trane Integrated Comfort system (ICS).
• The Tracer ZN520 can function as a completely standalone controller in situations where a
building automation system (BAS) is not present.
• For situations when a non-Trane BAS is present, the Tracer ZN520 can be where ever a LonTalk
front-end system is present.
Through building management of the HVAC system, optimizing energy consumption becomes
possible at a classroom level. Each unit is capable of functioning independently of one another
during occupied and unoccupied hours of the day. This allows the temperature setpoint and
ventilation setting to be changed automatically based on classroom usage (see Figure 27, p. 70).
Figure 26. Tracer ZN520 control board
Tracer ZN520 (LonTalk)
UV-PRC003-EN.book Page 69 Tuesday, June 4, 2013 8:59 PM