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and a full set of eight stainless steel bolts and hex nuts
Measure the distance from the mounting surface to the tip of your existing probe
Professional installation by a qualified technician is required for proper flame sense signaling and system safety
the primary mechanical shaft seal assembly should be inspected separately for wear or pitting
Aprilaire 4592 Airflow Proving Switch 322838-754 and a full set ofThe Aprilaire 4592 Airflow Proving Switch is a genuine OEM airflow safety switch engineered to provide precision monitoring of pressure differentials within your HVAC system. This Aprilaire model 4592 serves as a critical differential pressure switch, ensuring that secondary equipment like whole home humidifiers or electronic air cleaners only activate when proper blower operation is detected. By acting as an HVAC airflow sensor, it prevents equipment
US$ 75.00
US$ 155.00