It features high-precision brass burner orifices and a heavy-duty regulator spring to maintain consistent Btu/h output while preventing the soot accumulation or flame lifting common with improper fuel-to-air ratios

It is impedance protected

Harsh Environment Protection: The IP67 rated housing and metal cable glands prevent moisture ingress and internal corrosion

this device ensures rapid response to electrical faults

Built for versatile pipe-mount applications

Greenheck 384591 Limit Switch 322027-701 It features high-precision brass burnerThe Greenheck 384591 High Limit Switch is a critical safety component engineered for precise thermal protection in commercial HVAC systems, specifically within Greenheck makeup air units and duct heaters. Designed as a manual reset limit switch, this sensor monitors discharge air temperatures to prevent heat exchanger damage or hazardous overheating conditions. This HVAC high limit control features a fixed temperature trip point, ensuring the circuit