Trane Europe Chiller Interface
BMTW-SVN01F-EN 115
Trane Europe Chiller Interface
Description
The Trane Europe chiller interface allows Tracer Summit to monitor and
control scroll chillers equipped with scroll manager module (SMM) con-
trollers. 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 7 on page 46.
Type of Communication Card: Isolated Comm3
Refer to “Isolated Comm3 Card” on page 49.
Wiring Notes
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 “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 Trane
Europe chiller. Refer to the Trane Europe chiller literature for con-
nection points.
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