Trane American Standard BAYLOAM103 is a field-installed head pressure and low ambient control kit for select outdoor units. Designed for 240/480V systems, it is listed for models 4TTR4042L1000A BAYLOAM103, 4TTR4043L1000A BAYLOAM103, 4TTR4048L1000A BAYLOAM103, and 4TTR4060L1000B BAYLOAM103. The kit bundles a controller module, liquid line temperature sensor, outdoor air temperature sensor, low-voltage wiring harness, sensor clamps, thermal grease, insulation tape, screws, and labels. It provides head pressure control to support operation in low ambient conditions on compatible Trane/American Standard units.
