Resideo TK300-30A-1FM Boiler Trim Kit R-448A 7mA minimum flame sense current

7mA minimum flame sense current for high accuracy

eliminating the need for traditional thermal heaters while providing a wide adjustable trip range

you ensure the appliance operates within its specified performance envelope

Simplified Diagnostics: Integrated visual position indicator on the motor allows for immediate verification of damper status without removing ductwork

Enhanced Safety: Features an integrated safety lockout mechanism that monitors flame presence and pressure switch signals to prevent hazardous conditions

Resideo TK300-30A-1FM Boiler Trim Kit R-448A 7mA minimum flame sense currentThe Resideo TK300 30A 1FM Boiler Trim Kit is a comprehensive solution for field technicians performing boiler change outs or new hydronic installations. This professional grade boiler trim kit features a 4. 4 gallon TK300 30 expansion tank with a durable Butyl EPDM diaphragm, engineered to effectively manage hydronic system pressure in closed heating loops. The assembly includes a 1 inch AP400 cast iron air purger and an FV180 Goldtop air vent for