
®
Wire the UCMs
Wire the UCMs
The Comm5 communication link connects unit control modules (UCMs) to the Tracker termination module. Each controller has one Comm5 communication link. This topic includes information and procedures for wiring a UCM to a termination module:
Note:
Do not exceed the maximum number of UCMs that can communicate on a Tracker controller (see “UCM maximum capacities for Tracker models 12 and 24” on page 10 for details).
Wire specifications
Tracker Comm5
Trane recommends that you use Level 4 (Echelon) shielded cable for the Tracker communication link wiring between the Tracker and the Comm5 UCMs to which it communicates. Trane also recommends that you use it for communication wiring between the VariTrac CCP and its associated VariTrac or VariTrane UCMs, and for sensor wiring to these devices.
Level 4 cable is available in shielded, plenum and
| 29 |