Resideo L4008E1040 Controller 320734-701 ensuring the HVAC expansion device

ensuring the HVAC expansion device performs under high-demand commercial HVAC maintenance cycles without hunting or premature failure

Key Benefits: High-Temperature Durability: Engineered with Viton rubber for superior resistance to heat and chemical degradation in HVAC applications

poppet-style appliance gas regulator engineered specifically for low-capacity burner and pilot line applications

Exact OEM Fit: Designed for 350/400 MBH XE/RXE models to ensure seamless integration with existing bearings and blower wheels

this kit ensures accurate refrigerant metering and liquid injection to prevent compressor overheating and oil thinning

Resideo L4008E1040 Controller 320734-701 ensuring the HVAC expansion deviceThe Resideo L4008E1040 is a heavy duty High Limit Aquastat Controller engineered for precise temperature regulation in hydronic heating systems, storage tanks, and industrial boiler applications. This immersion type controller features a Single Pole Single Throw (SPST) micro switch designed to break the circuit on temperature rise, providing critical over temperature protection. With an operating range of 130 270F and a factory set stop at 250F, it