Common indicators include a weak/lazy pilot flame

2-inch port specifications

Key Benefits Precision Machined: Manufactured to exact tolerances to ensure seamless integration with PTFE spring-loaded packing and Type 01 diaphragm actuators

this sensor ensures the control board receives accurate resistance feedback

Trane BRD4874 Board 322838-752 Common indicators include a weak/lazyThe Trane BRD4874 Dual Hi Voltage Binary Input Board (MPN: BRD4874, also identified as X13650734060) is a critical interface module for Trane chiller controls, specifically engineered for Tracer CH530 and Tracer TD7 automation platforms. This OEM board acts as a precise signal translator, converting high voltage binary inputs from external field devicessuch as pressure switches and safety relaysinto digital data the HVAC control module can process.