What is the difference between CFR and VFR settings on this board

Fabricated with durable metal "tablock" construction

Precise Modulation: Advanced modulating seat action maintains steady temperatures in high-volume cooking equipment like ranges and griddles

delivering a substantial steam discharge rate of 2

While originally configured for 3

Lennox 10M66 Limit Switch 323269-701 What is the difference betweenThe Lennox 10M66 Limit Switch is a critical safety component engineered for precise thermal monitoring in high efficiency gas furnaces and air handlers. For technicians diagnosing a Lennox furnace limit switch opening prematurely or failing to reset, this SPST (Single Pole Single Throw) thermal sensor provides the exact calibration required for OEM compliance and system safety. Operating on a normally closed circuit, the 10M66 is designed to break the