Description
York S1-2940A3541 Control Transformer Overview
The York S1-2940A3541 is a purpose-built HVAC control transformer designed to power low-voltage control circuits in York heating and cooling systems. Stepping down a 120-volt primary supply to a reliable 24-volt secondary output at a 40VA capacity, this transformer delivers the stable, consistent power that modern HVAC control boards, thermostats, and safety circuits demand.
Key Specifications
- Primary Voltage: 120V
- Secondary Voltage: 24V
- VA Rating: 40VA
- OEM Part Number: S1-2940A3541
- Brand: York
- Application: HVAC control circuit power supply
Features & Benefits
- OEM-direct replacement ensures proper fit and compatibility with York equipment
- 40VA capacity provides ample power for thermostats, control boards, and zone panels
- Steps 120V primary voltage down to the industry-standard 24V secondary for low-voltage control circuits
- Engineered to York’s quality standards for long-lasting, dependable performance
- Helps maintain safe, code-compliant HVAC electrical systems
Application
This transformer is a direct OEM replacement for compatible York residential and light commercial HVAC systems. It is commonly used to supply power to thermostats, control boards, relays, and other 24-volt control circuit components. Always verify compatibility with your specific York unit model before installation.
Installation Notes
- Disconnect all power before servicing or replacing the transformer
- Confirm primary voltage supply matches the 120V input rating
- Ensure total connected 24V load does not exceed the 40VA rating
- Refer to the equipment service manual for wiring diagrams and mounting instructions
