Set your meter to VDC

Utilizing a 5/8" ODF solder connection

High-output 25KW kits typically require the highest available blower speed tap to prevent limit switch tripping and ensure proper CFM-to-KW ratios

For field technicians maintaining pneumatic control systems

leading to quieter operation and smoother performance

Lennox 73M70 Replacement Kit 322838-752 Set your meter to VDCThe Lennox 73M70 IMC Replacement Kit is a critical GP1 1 service part designed for technicians servicing integrated modular controllers in Lennox commercial rooftop units and high capacity split systems. This genuine Lennox control board serves as a direct replacement for the LB 109490A IMC kit, providing the necessary processing power to manage complex HVAC system diagnostics, blower timing, and multi stage heating or cooling calls. Engineered for