Aprilaire 5558 Humidistat 320788-703 maintaining the professional aesthetic and

maintaining the professional aesthetic and structural integrity of the control interface without performance drift

this complete blowermotor assembly ensures consistent CFM output and balanced airflow

As a critical component for system start-up

What is the connection type for this York 3-way valve

Whether you are performing a routine overhaul or correcting airflow restrictions

Aprilaire 5558 Humidistat 320788-703 maintaining the professional aesthetic andThe Aprilaire 5558 is a high performance Automatic Digital Modulating Control package engineered specifically for use with the Model 866 modulating steam humidifier. This modulating steam humidistat provides superior precision by utilizing a microcomputer based design and a proportional algorithm. Unlike standard on off controls, the 5558 delivers a 0 10VDC or 2 10VDC modulating output signal, allowing the humidifier to adjust its output based on the