Description
The York S1-S90-293Q Fan Relay is a single-pole double-throw relay used to control fan switching operations by energizing or de-energizing the circuit in HVAC systems. Operating on a 24V coil with 50/60 Hz compatibility, it allows a low-voltage control signal to manage higher-load fan operation and sequencing. It is typically installed in air handling units, furnaces, and packaged, where it operates within the control assembly to regulate fan activation, support automatic cycling, and maintain coordinated operation between thermostatic controls and blower components.
