(solder/sweat) for direct line integration and a 1-1/4"-12 thread size male Rotalock fitting

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 maintains the same 24V floating signal requirements for seamless integration

This board is primarily utilized in the newer Reznor UD and UB models

It is impedance protected

Greenheck 384591 Limit Switch 322027-701 (solder/sweat) for direct line integrationThe 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