Utica-Dunkirk 240009863 Auqastat Refrigerant 1 1/8" Lift

1 1/8" Lift

Critical for HVAC energy management by locking in efficient operational temperature ranges

Always verify the temperature stamping on the original part to ensure the 70°F / 80°F range matches the manufacturer's specification for that specific serial number

ensuring the system remains protected upon power restoration

Utica-Dunkirk 240009863 Auqastat Refrigerant 1 1/8" LiftThe Utica Dunkirk 240009863 is a high limit immersion aquastat engineered for precise thermal regulation in hydronic boiler systems. This SPST (Single Pole Single Throw) controller operates within a 140 240F temperature range, functioning as a critical safety or operating limit. Designed to break on temperature rise, it ensures the burner or circulator cycles accurately based on the established setpoint. This unit is an OEM replacement part frequently