York S1-031-09179-000 Board

The York S1-031-09179-000 24V Relay Lock-In Board is a critical control component designed for precise sequence management in commercial and residential HVAC systems. This genuine OEM part serves as the direct replacement for S1-031-09155-000, addressing common communication failures and relay chatter issues found in older board revisions. Operating on a standard 24V AC control circuit, this board functions as a lockout relay, preventing short-cycling and protecting compressors from premature failure during low-pressure or high-pressure trips. Contractors often utilize this Johnson Controls furnace control board to ensure system stability following a power interruption or safety switch deployment. The integrated circuitry is engineered for easy drop-in installation within existing control cabinets, maintaining the electrical specifications required for York, Luxaire, and Coleman equipment. Utilizing this specific HVAC lockout relay ensures the control logic remains compliant with original equipment manufacturer standards, reducing callbacks and maintaining peak system performance and reliability.

• OEM Compatibility: Direct factory replacement for the legacy S1-031-09155-000 control board.
• Enhanced Logic: Provides a stable 24V relay lock-in function to prevent rapid cycling of the compressor.
• Technical Reliability: Engineered to withstand high-duty cycles in demanding commercial environments.
• Seamless Integration: Fits standard York control voltage terminal configurations for fast field wiring.

Common Questions

Is the S1-031-09179-000 compatible with older S1-031-09155-000 installations?
Yes, this part is the official direct replacement and features the same mounting footprint and terminal layout, making it a 1:1 swap in the field.

What is the primary function of this lock-in board?
This board monitors safety signals and "locks out" the system if a fault occurs, requiring a manual reset or power cycle to protect the compressor from damage.

Can this board be used in generic 24V HVAC applications?
While it operates on a standard 24V circuit, it is specifically optimized for the control logic and safety sequences of York-manufactured equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.