Description of UCM types
BMTX-SVN01C-EN 77
Trane Europe chiller interface
The Trane Europe chiller interface allows Tracer Summit to monitor and
control scroll chillers equipped with scroll manager module (SMM) con-
trollers. The interlace provides an isolated Comm3 communication link
between the BCU and each SMM. These chillers are manufactured in
Mirecourt, France. These include models designated as follows:
• CGAH
• CGWH
• RAUH
• CCUH
• CGCH
• CXAH
• RACH
For information on non-SMM controlled Trane Europe chiller models,
contact Trane Europe. For information about the number of Trane Europe
chillers allowed per BCU and per communication link, refer to Table 5 on
page 33.
Wiring requirements
To establish wiring connections between the UCM and the BCU, Trane
requires that you use the communications-link wiring specified in this
manual. For wire selection specifications, see “” on page 34. Refer to
Trane Europe chiller literature for communication link wiring connection
points on the Trane Europe chiller.
Device addressing
Each UCM must have a unique address on each link. On the Trane
Europe chiller, addresses are set from the front panel. Refer to the Trane
Europe chiller installation, operation, and maintenance manual for
details.
TUC: Terminal unit controller
Terminal unit controllers (TUCs) allow Tracer Summit to monitor and
control terminal units such as fan coils, water-source heat pumps, unit
ventilators, and blower coils.
You can connect TUCs to any Comm4 UCM communication link in the
BCU on TB2. The link provides a serial communication interface between
the BCU and each TUC in the system. For specific information about the
number of TUCs allowed per BCU and per communication link, refer to
Table 5 on page 33.
Wiring requirements
To establish wiring connections between the UCM and the BMTX BCU,
refer to the specifications on wire type, topology, and wiring procedures in
“Comm3/Comm4 wiring procedure” on page 36. Attach the communica-
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