Functional Devices-RIB TR40VA002 Transformer preventing the evaporator coil freezing

preventing the evaporator coil freezing issues that lead to compressor slugging or reduced heat transfer

or a cracked heat exchanger causing abnormal heat distribution

these are different part numbering conventions for the exact same size two green cartridge

The "L" indicates it is a Limit control (normally closed

technicians should check for 24VAC across the side terminals

Functional Devices-RIB TR40VA002 Transformer preventing the evaporator coil freezingFor high reliability power conversion in building automation and HVAC control systems, the Functional Devices RIB TR40VA002 Transformer provides a robust 40VA solution. This heavy duty 120V to 24V step down transformer is engineered for continuous duty applications where stable secondary voltage is critical for powering sensors, driving relays, and managing digital I O circuits. With its inherently limited overcurrent protection, this Class 2 UL 1585