Catalogue

UV-PRC004-EN 49
Controls
Tracer UC400
The Tracer UC400 controller delivers single zone VAV control and can be used in a stand-alone
application or as part of a Trane Integrated Comfort System (ICS).
In the stand-alone configuration, Tracer UC400 receives operation commands from the zone sensor
and/or the auto changeover sensor (on auto changeover units). The entering water temperature is
read from the auto changeover sensor and determines if the unit is capable of cooling or heating.
The zone sensor module is capable of transmitting the following information to the controller:
• Timed override on/cancel request
• Zone setpoint
• Current zone temperature
• Fan mode selection (off-auto-high-med-low)
For optimal system performance, unit ventilators can operate
as part of an Integrated Comfort
System (ICS) building automation system controlled by Tracer Summit. The controller is linked
directly to the Summit control panel via a twisted pair communication wire, requiring no additional
interface device (i.e., a command unit). The Trane ICS system can monitor or override Tracer UC400
control points. This includes such points as temperature and output positions.
Tracer UC400 Zone Controller Features Include
• Single Zone VAV
• Automatic ventilation reset
• Active dehumidification
• Filter maintenance
• Water valve override
• Freeze avoidance
• Interoperability
• Unused I/O can be as generic I/O
The Tracer UC400 is a factory-installed, -tested, and -commissioned BACnet
®
MS/TP control
designed to provide control of the classroom unit ventilator (see Figure 15). The Tracer UC400
controller is designed to be used in the following applications: as stand-alone operation, part of the
Trane Tracer SC building automation system, or part of another BACnet MS/TP Building
Automation System. The Tracer UC400 can function as a completely standalone controller in
situations where a building automation system (BAS) is not present.
The Tracer UC400 is designed to install quickly and easily into the system. Since the controller and
the unit are factory-tested and -commissioned, the start-up time for the entire system is minimized.
Trane becomes the single source of responsibility for the equipment, unit controls, and building
automation system. As a standalone controller, the Tracer UC400 is ideally suited for fix-on-fail
replacement of units with old pneumatic controllers, or in situations where a BAS will be added at
Figure 15.
Tracer UC400
UV-PRC004-EN.book Page 49 Monday, February 4, 2013 11:01 AM