Description
The York S1-02547239000 Transformer is an electrical control component designed to convert incoming line voltage into a lower, usable control voltage for system operation. It features a 208–240V primary winding and a 24V secondary output with a 100VA capacity at 60Hz, allowing it to supply stable power to control circuits, relays, and safety parts. Installed within a furnace or air handling control panel, it ensures stable voltage conversion for low-voltage operation. In HVAC systems, this transformer supports consistent control signal power, enabling safe and dependable operation of thermostats and control components throughout the equipment.









