ensuring exact physical fitment and electrical calibration for wall-mount units

or improper drafting within the burner assembly that forces flames outward toward the sensor

this steel fan pulley ensures precise mechanical alignment and belt tensioning

including VAV units and small air handlers requiring a 120V power input

Its compact design allows for versatile mounting in tight cabinets

Hydrotherm BM-3355 Aeroquip Coupling 321894-706 ensuring exact physical fitment andThe Hydrotherm BM 3355 is a high performance 3 inch Aeroquip coupling engineered specifically for heavy duty HVACR applications where fluid integrity is non negotiable. Designed for seamless integration into hydronic systems, including chillers, boilers, and industrial cooling towers, this quick connect coupling minimizes pressure drops and prevents fluid loss during maintenance cycles. Its leak proof design and high flow capacity ensure that your