and flame sensors are typically sold separately or can be salvaged if they are still within technical specifications

and vermin-resistant metal case ensures long-term reliability in high-traffic or exposed areas

Common Questions: Which compressor models are compatible with this heater

significantly reducing labor time for contractors during routine system maintenance

offering a nominal capacity range from 3/4 to 1-1/2 tons

Carrier 20010004 Primary Control 321042-401 and flame sensors are typicallyThe Carrier 20010004 24V Primary Control is an essential OEM component designed for high precision management of burner ignition and safety monitoring. As an industry standard electronic control box, this 24 volt module effectively replaces the legacy 530 SE C model, offering full backward compatibility for technicians servicing Riello 40 Oil Burners (F3 through F20 series). Engineered to handle signal inputs from temperature and pressure sensors, it