You should verify the part number against your unit’s service manual or check the wiring schematic for standard enthalpy input requirements

Automatic Reset Functionality: Minimizes unnecessary service calls by automatically resetting the limit switch once safe temperatures are cleared

this OEM boiler sensor eliminates compatibility issues with the wiring harness and prevents common diagnostic fault codes associated with improper resistance readings

maintaining precise air-to-fuel ratios is non-negotiable for high-efficiency operation

it utilizes a servo-operated diaphragm design to handle a flow rate of 18 m³/h with a Cv 20

Browning 2B68SDS Sheave 322838-752 You should verify the partThe Browning 2B68SDS Sheave is a precision engineered two groove Q D (Quick Detachable) sheave designed for rugged commercial HVACR applications. Constructed from high grade cast iron, this sheave features a 7. 15" outside diameter and is balanced to ensure minimal vibration in high torque environments. Engineered for versatility, it is compatible with both A and B series belts (including 4L and 5L variants), providing reliable power transmission