Communication Interfaces; Rotary Switches; Led Description And Operation; Controls Interface - Trane RTHD series Installation, Operation And Maintanance

Communication Interfaces

There are four connections on the UC800 that support
the communication interfaces listed. Refer to
for the locations of each of these ports.
• BACnet MS/TP
• MODBUS Slave
• LonTalk using LCI-C (from the IPC3 bus) .

Rotary Switches

There are three rotary switches on the front of the UC800
controller. Use these switches to define a three-digit ad-
dress when the UC800 is installed in a BACnet or MOD-
BUS system (e.g., 107, 127, etc.). Note: Valid addresses
are 001 to 127 for BACnet and 001 to 247 for MODBUS.

LED Description and Operation

There are 10 LEDs on the front of the UC800.
shows the locations of each LED and
their behavior in specific instances.
Figure 41. LED Locations
RTHD-SVX02H-EN
Figure 40,
Figure 41
Table 22, describes
Operator Interface Controls
Table 22. LED Behavior
LED
Powered. If the Marquee LED is green solid, the UC800 is pow-
ered and no problems exist.
Marquee LEDLow power or malfunction. If the Marquee LED is
red solid, the UC800 is powered, but there are problems present.
Alarm. The Marquee LED blinks Red when an alarm exists.
LINK, MBUS, IMCThe TX LED blinks green at the data transfer
rate when the UC800 transfers data to other devices on the link.
The Rx LED blinks yellow at the data transfer rate when the
UC800 receives data from other devices on the link.
Ethernet LinkThe LINK LED is solid green if the Ethernet link is
connected and communicating.
The ACT LED blinks yellow at the data transfer rate when data
flow is active on the link.
ServiceThe Service LED is solid green when pressed. For quali-
fied service technicians only. Do not use.
NOTICE:
Electrical Noise! Maintain at least 6 inches between
low-voltage (<30V) and high voltage circuits. Failure to
do so could result in electrical noise that could distort
the signals carried by the low-voltage wiring, including
IPC.

Controls Interface

TD7 Display

Each chiller is equipped with the TD7 interface. TD7 has
the capability to display additional information to the ad-
vanced operator including the ability to adjust settings.
Multiple screens are available and text is presented in
multiple languages as factory-ordered or can be easily
downloaded online.

Tracer TU

Tracer TU can be connected to the UC800 and provides
further data, adjustment capabilities, diagnostics infor-
mation, downloadable software.
Tracer AdaptiView™TD7

Operator Interface

Information is tailored to operators, service technicians,
and owners. When operating a chiller, there is specific
information you need on a day-to-day basis—setpoints,
limits, diagnostic information, and reports. Day-to-day
operational information is presented at the display. Log-
ically organized groups of information— chiller modes
of operation, active diagnostics, settings and reports put
information conveniently at your fingertips.
UC800 Status
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