Catalogue

CAB-PRC001-EN 33
Controls
In the stand-alone configuration, Tracer ZN520 receives operation commands from the zone
sensor. 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, Force-Flo units can
be linked to an Integrated Comfort System
(ICS) building automation system controlled by Tracer SC. The controller is connected to the
building automation system with a LON Talk communications network. The Trane ICS system can
monitor or override Tracer ZN520 control points. This includes such points as temperature and
output positions.
Tracer UC400, Model Number Digit 30 = J
The UC400 controller can be used in a stand-alone application or as part of a Trane Integrated
Comfort™ System (ICS).
In the stand-alone configuration, 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, fan-coil units can operate as part of an Integrated Comfort
System (ICS) building automation system controlled by Tracer SC. The controller is linked to the
building automation system using BACnet MS/TP. The building automation system can monitor or
override UC400 control points. This includes such points as temperature and output positions.
Service Software
A windows-based software package option allows field service personnel to easily monitor, save,
download, and configure Tracer unit controllers directly or through a communication link from a
portable computer. When connected over the communication link, the service software can view
any Tracer ZN controller that is on the same communication link. See Tracer TU or Rover literature
for more details.
Figure 7.
CAB-PRC001-EN.book Page 33 Tuesday, May 8, 2012 10:11 AM