BMTW-SVN01F-EN 69
Chapter 5
UCM Wiring and Addressing
Unit control modules (UCMs) provide the communication interface neces-
sary for a BCU to monitor and control equipment. In this section, each
UCM is described in terms of the equipment it is used with and the type
of card that provides the communication link.
Addresses for most UCMs are set by using DIP switches or local displays.
In this section, specific tables provide address settings for each of these
UCM types. Appendix A provides an alternative table, along with calcula-
tion instructions, that can be used for all DIP switch settings.
Comm5 UCMs are unique because they do not have a field-configurable
DIP switch address (see “Neuron ID” on page 144).
CenTraVac Unit Control Panel (UCP1)
Interface
CenTraVac unit control panels (UCP1s) allow a Tracer Summit system to
monitor and control the following CenTraVac control chiller models:
CVHE, CVAD, CVHB, and RTHA. One digit of each UCP1’s model num-
ber indicates whether the UCP1 has a bidirectional communication inter-
face and can communicate with Tracer Summit.
For CVHE, CVAD, and CVHB chillers, the UCP1 must have a code num-
ber of 13650396-06 or higher and also have the following model number
specification:
• If the UCP1 model number has 41 digits, digit #38 must be the letter
W or Z.
• If the UCP1 model number has 18 digits, digit #14 must be the
letter B.
For RTHA chillers, the UCP1 must have a code number of 13650396-06 or
higher and digit #13 of the UCP1 model number must be the letter D.
For specific information about the number of UCP1s allowed per BCU
and per communication link, refer to Table 7 on page 46.
Note:
If the UCP1 control panel is connected to a System Control
Panel (SCP), with or without a Tracer 100 in place, then the
chiller has a bidirectional communication interface (regardless
of the chiller model number). The SCP can be removed and the
chiller can be connected to a Tracer Summit system for moni-
toring and control.
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