Compact Alternative: Serves as a code-approved alternative to expansion tanks

Rugged Durability: Robust metal construction resistant to thermal stress and corrosion

High Precision: The 0

and dust common in mechanical rooms

Optimized Airflow: The double inlet concave design reduces turbulence

York S1-029-25428-000 Detector 321894-708 Compact Alternative: Serves as aThe York S1 029 25428 000 is an OEM duct smoke detector engineered for precise integration into light commercial and residential HVAC systems. Designed with a 4 wire photoelectric sensor head, this unit utilizes low flow technology to maintain reliable performance across air velocities ranging from 100 to 4,000 feet per minute (FPM). It serves as a direct HVAC replacement part for existing safety infrastructures, featuring a dedicated harness control