The Emerson Alco 034803 (Model XB-1019A-1B) is a high-performance thermal expansion valve power assembly engineered for demanding liquid injection applications

High Volume Output: Reduces lag time by providing sufficient airflow to drive multiple actuators without the need for additional relays

Forged brass construction offers superior durability and 400 psi static pressure handling for hydronic heating systems

this switch is a direct-fit for various OEM board-mount configurations

ensuring optimal airflow across the condenser coils to maintain system head pressure and efficiency

Antunes Controls 804112103 Pressure Control R-410A The Emerson Alco 034803 (ModelThe Antunes Controls 804112103, model RHLGP A, is a specialized dual action high low gas pressure switch designed for critical monitoring in industrial and commercial HVACR applications. This manual reset control ensures system safety by cutting the circuit when pressure exceeds the 10 50" W. C. high limit or drops below the 1 6" W. C. low limit. Engineered for reliability, the 804112103 features a robust diaphragm and high precision sensing elements