Description
York S1-7945-3551 Control Transformer Overview
The York S1-7945-3551 is an OEM replacement control transformer engineered to deliver reliable, low-voltage power to HVAC control circuits. With a 120V primary and a 24V secondary at 15VA, this transformer is a direct-fit solution for York heating and cooling equipment requiring a dependable 24V control signal.
Key Specifications
- SKU: S1-7945-3551
- Primary Voltage: 120V
- Secondary Voltage: 24V
- VA Rating: 15VA
- Brand: York (OEM Replacement)
Features & Benefits
- OEM-specified replacement for compatible York HVAC systems
- Steps down 120V line voltage to 24V for control circuit operation
- 15VA capacity supports standard thermostat and control board loads
- Designed for straightforward drop-in installation
- Helps restore proper control circuit function and system reliability
Application
This transformer is used to power the 24V control circuits found in York furnaces, air handlers, and other HVAC equipment. It supplies the low-voltage signal required by thermostats, control boards, and safety devices throughout the system. Replacing a failed transformer with the correct OEM part ensures proper voltage delivery and protects downstream control components.
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