making it suitable for multi-zone commercial control systems

which simplify routine pressure testing and system diagnostics without breaking the line

ASME Code Compliance: National Board certified for Section IV applications

Simplified Maintenance: Plug-in sensor head allows for tool-free replacement into the D4120 base

Safety Compliance: Prevents gas valve operation in the event of venting blockages or inducer motor failure

York S1-FHM3589 Motor 326058-757 making it suitable for multi-zoneThe York S1 FHM3589 Motor is a high performance, 115v 3 4hp 1075rpm 3spd motor engineered specifically for direct drive blower applications in York, Coleman, and Luxaire HVAC systems. Featuring a 3 speed motor configuration, this unit allows technicians to precisely tune airflow to meet specific system static pressure requirements. The 1075 RPM rating ensures consistent CFM delivery across residential ductwork profiles, while the 3 4 HP output