Trane TCONT900AC43UA - Communicating Systems Reference

R - C 1
Reference Materials
Field Wiring Diagrams .............................................................................................................................. 3
Communicating Controller with Communicating Outdoor & Indoor Unit .................................................. 3
Communicating Controller with Communicating Indoor Unit
& Single Stage AC Outdoor Unit ........................................................................................................... 4
24 Volt Thermostat with Communicating Outdoor Unit & 24V Harness Kit #BAYACHP024A ................. 5
Three-Stage Gas Furnace.......................................................................................................................... 7
Vent Length Table for Variable Speed Vent Motor Models Only ............................................................ 7
Multi Stage Automatic Gas Valve ......................................................................................................... 9
Gas Furnace..............................................................................................................................................10
Pressure Switch Matrix Chart ...............................................................................................................10
Communicating Systems Troubleshooting Checklist ........................................................................... 11
Alert Code Guide .................................................................................................................................13
User Interface Assembly ...........................................................................................................................14
Introduction .........................................................................................................................................14
User Interface Menu ............................................................................................................................15
Outdoor Sensors ......................................................................................................................................16
Ambient Sensor & Coil Sensor ............................................................................................................16
Liquid Line Sensor ...............................................................................................................................17
Liquid Line Pressure Transducer ..........................................................................................................17
External Accessory Temperature Sensor BAYSEN01ATEMPA ............................................................18
Software Change History .........................................................................................................................19
COMSYS Air Handler Update ..................................................................................................................19
Control Board.......................................................................................................................................19
Airflow (Lower Than Expected) .............................................................................................................20
Re-flashed Air Handler Motor .........................................................................................................21
EEV History - CNT05129 .....................................................................................................................21
Other Issues - EEV Control ...........................................................................................................21
EEV History ..................................................................................................................................21
Charge Assist Control Board................................................................................................................22
Comfort Control ...................................................................................................................................22
COMSYS Furnace Update ...................................................................................................................22
Control Board CNT4829 .................................................................................................................22
Control Board ................................................................................................................................23
Airflow (Lower Than Expected) ......................................................................................................23
Communicating Systems Reference
Section C