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

The 40A rating applies to inductive loads like compressor motors

Common Questions & Technical Insights: Is the Emerson AACE 2 ZW195 compatible with heat pump systems

restricted combustion air

the unit must never be operated without a functional limit control

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