Armstrong Fluid Technology 810120-003 Coupler 318973-401 How do I ensure accuracy

How do I ensure accuracy during setup

the flame sensor likely has soot buildup or an internal crack in the insulator

• OEM Bosch ignition group assembly for compatible heating systems• Supports proper burner ignition and flame establishment• Designed for HVAC and hydronic heating applications• Direct replacement for worn or failed ignition assemblies• Helps maintain reliable startup and combustion operation• Built to OEM electrical and fitment specifications

it meets the EIA-456-A test standards

Armstrong Fluid Technology 810120-003 Coupler 318973-401 How do I ensure accuracyThe Armstrong Fluid Technology 810120 003 Coupler is a precision engineered OEM replacement part designed for high performance hydronic systems. Specifically manufactured for Armstrong H 51 and H 52 circulator pumps, this four spring type coupler facilitates efficient power transfer between the motor and the bearing assembly. Featuring a 1 2 inch x 1 2 inch shaft size and a robust cast iron construction, it is built to withstand the rigorous demands