Trane Link 24-Volt Interface Relay Panel with AUX Control

Manufacturer Part Number: BAC24VRPA252UC

The Trane BAC24VRPA252UC Interface Relay Panel is a conventional 24-volt HVAC interface designed to connect Trane Link communicating controls with compatible non-communicating indoor heating and cooling equipment. It enables communication between the control system and supported HVAC components, helping coordinate equipment operation for reliable indoor climate management. The panel is designed for use with compatible S-Series non-communicating variable-speed furnaces, L8V1 ultra-low NOx furnaces, P0V0 modular air handlers, and TEM Series variable-speed air handlers. Its compact, wall-mounted enclosure makes it suitable for installations requiring an organized and dependable interface between modern communicating controls and conventional 24 VAC HVAC equipment.

The BAC24VRPA252UC includes LED stage indicators that help technicians monitor system activity and simplify troubleshooting during installation and servicing. Its removable low-voltage terminal blocks allow easier wiring maintenance and component replacement, while auxiliary contacts support compatible whole-house dehumidifiers, ventilation equipment, and humidifiers. An optional remote indoor temperature sensor connection provides additional flexibility for compatible installations. The panel is designed for practical installation in residential and light-commercial HVAC applications. It uses physical wiring and a Controller Area Network (CAN) communication connection.

Key Features

• AUX humidifier control
• AUX whole-house dehumidifier and ventilation control
• Optional remote indoor-temperature connection
• LED stage indicators and removable terminal blocks
• 24-volt interface relay panel for Trane Link