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Verify 24V power between the R and C terminals
ensuring the burner circuit only stays open in the presence of a healthy pilot
The Spence BF-4-KIT is specifically sized for the standard 4-inch Type E main valve
Built for industrial HVAC applications
Optimized Compatibility: Engineered specifically for Lennox furnace air safety circuits
Carrier KR11AG008 Fan Pulley R-22 Verify 24V power between theThe Carrier KR11AG008 Fan Pulley is a precision engineered fixed bore drive component designed specifically for Carrier commercial HVAC systems and package units. This HVAC blower pulley features a robust cast iron construction, ensuring dimensional stability and resistance to groove wear under high torque applications. With an outside diameter (OD) optimized for belt drive efficiency, this OEM Carrier replacement part maintains the specific RPM