Trane Building Automation System, BMTK-SVN01D-EN manual Wire the UCMs, Wire specifications

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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 communication-link and sensor wiring is low-voltage Class 2 wire and must be field-supplied and installed in compliance with NEC and local codes. To prevent electrical noise interference, all wiring must comply with requirements outlined in this topic for wire selection and link-wiring topology.

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 non-plenum versions. Level 4 cable is available from Trane-approved suppliers as well as other suppliers. Table 7 on page 30 shows the Trane approved suppliers; Table 8 on page 31 provides the specifications for Level 4 compliant cables.

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Contents Building Automation System Page BMTK-SVN01D-EN February Page BMTK-SVN01D-EN BMTK-SVN01D-EN Contents Appendix B Appendix aTracker controller OverviewOverview Overview Tracker controller components Controller componentsTermination module Termination moduleMain module Main moduleDisplay module Display moduleModel number definition Model numbersTracker Controller specifications Tracker controller specificationsSpecification Description Tracker controller models 12 and 24 UCM capacities UCM maximum capacities for Tracker models 12Tracker model UCM type Maximum UCMs Tracker controller model Wshp UCM capacities UCM maximum capacities for Tracker model Wshp105 Verify the shipment Before installationInspect for shipping damage Store unused components until needed Avoid Equipment DamageTracker controller post-installation checklist After installationFCC compliance Termination module mounting Verify location conformance to controller specificationsSelect a location for the controller Termination module mounting Minimum clearances Optimal touch screen viewing angles Mount the termination module Termination module conduit access and mounting holesSecuring the termination module to a conduit box Securing the termination module to a wallElectrical conduit installation Installing electrical conduitTermination module mounting Termination board wiring Termination board wiring Power wiring specifications Wire 24 Vac powerVac power Description Wire specifications Terminals Input and output wire specifications Wire optional inputs and outputsInput and output Description Wire specifications Terminals Wire the priority shutdown device Wire the alarm relayWire the thermistor Wire the utility pulse meterWire specifications Wire the UCMsSupplier Cable type Number Details Catalog Pairs Trane-approved wire suppliersSpecification Value Specifications for Echelon Level 4 compliant cablesFigure Note UCM wiring configurationsWire the UCMs Resistor color band table Termination resistor placement for Comm5 linksTolerance Color sequence Daisy-chain termination resistor placement Tracker Requirements for repeaters on Comm5 communication links Wire supported UCMsConnecting communication link shield wiring to repeater Comm5 daisy-chain repeater connection Termination board wiring Main module mounting Main module mounting Display module mounting Display module mounting Display module engagement Display module mounting Verify PC workstation specifications PC workstation wiringCable and adapter specifications for direct connection Direct connection to PC workstationPC workstation wiring Tracker direct connection to a PC workstation Modem connection to PC workstation Tracker modem connection to a PC workstation Ethernet connection to PC workstation Connecting over an existing LANTracker Controller PC Workstation Connecting through a hubConnecting with one cable Troubleshooting components TroubleshootingService pin buttons and jumper LEDsTroubleshooting Tracker main logic board LEDs Alarm LEDLED name Color Description NumberService pin buttons/jumper Function Main logic board service pin buttons and jumperSymptom/action troubleshooting Symptom/action troubleshootingSymptom Action Present of the proper severity to actuate the alarm output Symptom/action troubleshooting Troubleshooting Cleaning the touch screen MaintenanceCalibrating the touch screen Maintenance Required supplies checklist Installation checklistsOptional supplies checklist Required suppliesComm5 UCM identification and location Comm5 UCM identification and locationSpace Comfort Controllers 24 maximum Space Comfort Controllers Modules 4 maximum VariTrac central control panels 10 maximumPre-installation wiring notes Termination module post-installation checklist Termination module post-installation checklistCircuit Mandatory Test Actual value Wiring Temperature ºF Temperature ºC Sensor resistance Ohms x Thermistor sensor electrical characteristicsAppendix a Installation checklists Declaration of Conformity Product Number BMTK000AA0A110 When and where issuedElectromagnetic Emission Mark of Compliance European ContactNumerics IndexIndex Index Index Page Trane