the 6311-2RS1 or 6311-2NSE interchange ensures you are getting a precision part that drops right onto the shaft with the correct C3 internal clearance for thermal expansion

the CNT2239 is specifically engineered by Trane to replace the Johnson Controls A19ACA-17 series

low-flow control solution in restricted installation spaces

making it an ideal choice for packaged terminal air conditioners (PTAC)

The unit is housed in a NEMA 1 rated plenum enclosure and includes an external LED indicator to provide real-time status of the relay coil activation

IO Hvac Controls TR-75 Transformer 340155-7024 the 6311-2RS1 or 6311-2NSE interchangeThe IO Hvac Controls TR 75 Transformer is a heavy duty 75VA power solution designed for demanding HVAC control circuits and industrial automation tasks. This versatile foot mount transformer features multi tap primary configurations, supporting 480 240 208 120V primary inputs to provide a stable 24V secondary output. Unlike standard residential transformers, the TR 75 includes an integrated manual reset circuit breaker, protecting the secondary