Chapter 5 UCM Wiring and Addressing
82 BMTW-SVN01F-EN
IntelliPak Rooftop Unit Interface
Description
Tracer Summit can monitor, control, and configure IntelliPak rooftop
units. The IntelliPak UCM interface provides a communication link
between the BCU and each IntelliPak. For specific information about the
number of IntelliPaks allowed per BCU and per communication link,
refer to Table 7 on page 46.
IntelliPaks UCMs must have the Trane communication interface (TCI)
module installed in order to communicate with Tracer Summit. The TCI
module must have Version 2 software or higher.
Make sure the DIP switches and the daughter board on the TCI card are
set as shown in Figure 40 on page 84. Refer to the IntelliPak UCM instal-
lation, operation, and maintenance manual for details about confirming
the configuration of the IntelliPak interface.
Type of Communication Card: Comm4
Refer to “Comm4 Card” on page 51.
Wiring Notes
To establish wiring connections between the UCM and the BCU, Trane
requires that you use the communication-link wiring specified in this
manual. For wire selection specifications, see “UCM Communication-
Wire Characteristics” on page 55.
Use fiber-optic modems for building-to-building communication. If fiber
optics are not used, building-to-building communication wiring requires a
Transtector transient protector at each building. You can purchase Tran-
stector protectors through Trane. Contact your local Trane sales office for
details.
In a daisy chain configuration, use one pair of wires that start at the BCU
and go to all UCMs in a continuous loop. A branch configuration is possi-
ble if you need to tap into a daisy chain. Limit the total aggregate length
of the wiring for each communication link to 5,000 ft (1,524 m).
To connect communication wiring:
1. Attach one end of the communication-link wiring to TB2 on the BCU.
For the location of TB2, refer to Figure 16 on page 47.
2. Attach the other end of the communication-link wiring to the Intelli-
Pak UCM at 1TB5-19(+) and 1TB5-20(–) on the control panel. See
Figure 41 on page 85 for connection points on the UCM.
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