IO Hvac Controls iO-DFK Dual Fuel Kit R-22 73 Cv Equal Percentage Flow

73 Cv Equal Percentage Flow Cast Bronze Body with Brass Trim

Ensure the actuator stroke matches the valve travel for full shut-off

This Single Pole Single Throw (SPST) flame rollout sensor is engineered to interrupt the heating circuit when it detects excessive temperatures

or repeated system lockouts due to weak spark intensity

This part is a direct replacement for Lennox 89M77

IO Hvac Controls iO-DFK Dual Fuel Kit R-22 73 Cv Equal Percentage FlowThe iO DFK Dual Fuel Kit provides seamless management for hybrid heating systems combining an electric heat pump with a fossil fuel furnace. Engineered for simplified dual fuel heat pump control, this kit handles up to 4 stages of heating and 2 stages of cooling. It utilizes professional quiet relay technology to prevent the heat pump and furnace from operating simultaneously, effectively protecting the compressor. The included iO DFK ODT outdoor