This component is essential for protecting the furnace heat exchanger from thermal stress and ensuring long-term system reliability

preventing unnecessary wear on the outdoor condenser unit

Verified Safety Logic: Confirms proper flue gas venting and draft pressure before allowing the burner to fire

ensuring consistent torque and airflow for industrial unit heaters

It features a standard 1/8 inch MPT (Male Pipe Thread) brass fitting

Armstrong Fluid Technology 116491-136A Pump 323055-751 This component is essential forThe Armstrong Fluid Technology 116491 136A Pump is a high performance HVAC circulator pump designed for demanding commercial heating and cooling applications. As the direct successor to the legacy 116491 136, this Series H 65 model features a robust 1 HP motor operating at 208 230 460Vac on a three phase electrical configuration. Engineered for longevity, it utilizes a cast iron body paired with a non ferrous impeller to resist corrosion and ensure