Aprilaire 5558 Humidistat 320788-703 this complete blowermotor assembly ensures

this complete blowermotor assembly ensures consistent CFM output and balanced airflow

allowing for a faster HVAC part replacement on-site

Key Benefits High Capacity Hardware: Rated for up to 150

As a critical component for system start-up

Aprilaire 5558 Humidistat 320788-703 this complete blowermotor assembly ensuresThe 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