York S1-025-18452-700 Transformer

The York S1-025-18452-700 Transformer is a heavy-duty electrical component engineered for precise voltage regulation in residential and light commercial HVAC systems. This 40VA control transformer serves as the direct replacement for 025-18452-000, ensuring full compatibility with York, Coleman, and Luxaire air handlers and furnaces. It features a dual-tap primary for 208/240V to 24V transformer applications, providing the necessary secondary power for circuit boards, contactors, and thermostats. For technicians troubleshooting low-voltage issues, this 24V HVAC transformer provides consistent 24VAC output to maintain steady system communication. When technicians ask, is S1-025-18452-700 compatible with older York units? the answer is yes, as it maintains the exact footprint and specifications of the original OEM part. Using this York transformer replacement prevents common issues like control board power loss and chatter in contactors. For a secure installation, verify that the total circuit load does not exceed the 40VA rating to ensure long-term reliability in the field.

Key Benefits

• OEM Precision: Direct fit replacement for part number 025-18452-000, eliminating the need for mounting modifications.
• Versatile Primary Tap: Rated for both 208VAC and 240VAC primary inputs to suit various field power supplies.
• Standard 40VA Capacity: Robust enough to handle modern control boards and multi-stage contactor loads.
• Compact Footprint: Designed for standard HVAC control box mounting configurations.

Common Questions

How to replace a York 40VA transformer? First, disconnect all line voltage. Map your primary wires (208V or 240V) to the corresponding taps and secure the 24V secondary leads. Ensure the metal frame is properly grounded to the chassis.

What causes a transformer to burn out? Most failures are due to a direct short in the low-voltage wiring or a faulty contactor coil pulling more than 40VA. Always clear the short before installing the new unit.

How do I wire a 208V primary HVAC transformer? Connect the common lead and the 208V lead to your incoming power lines, ensuring the 240V lead is safely capped and insulated to prevent shorting.

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.