Dwyer Instruments 629C03CHP2E5-S1-3V Pressure Transmitter 322056-301 Why is my boiler showing

Why is my boiler showing an E421 or ignition fault code

While designed for Armstrong

High Pressure Rating: Forged construction handles extreme pressure cycles and vacuum pump applications without fatigue

Specifically engineered for Trane and American Standard rooftop units and split systems

this digital compressor controller features integrated diagnostics with a multi-color LED alert system to identify faults like high discharge temperatures or supply voltage drops

Dwyer Instruments 629C03CHP2E5-S1-3V Pressure Transmitter 322056-301 Why is my boiler showingThe Dwyer Instruments 629C 03 CH P2 E5 S1 3V is a rugged wet wet differential pressure transmitter engineered for precise monitoring of compatible liquids and gases in demanding HVACR environments. Featuring a 0 to 25 psid range and 0. 5% full scale accuracy, this unit utilizes dual 316L stainless steel sensors to deliver a stable 4 20 mA output. This specific configuration includes an integrated 3 way valve manifold, a critical feature for