Williams P024200 Transformer

When you're out in the field and the control board loses its signal, the Williams P024200 Transformer is the OEM HVAC replacement part you need to restore functionality. This step-down transformer is specifically engineered for Williams Forsaire counterflow furnaces and top-vent heaters, converting a 120V primary input to a stable 24V secondary output. With a 20VA power rating, it provides the clean, low-voltage power required for thermostats, contactors, and ignition systems without the noise or vibration common in generic components.

A veteran tech knows that HVAC voltage conversion must be precise to prevent stressing sensitive electronics. This transformer features rugged construction designed to handle the high-cycle demands of residential and industrial heating environments. Its standard configuration allows for a direct-fit swap, minimizing downtime. Whether you're troubleshooting an unresponsive thermostat or a sequence of operation failure, this 24V control transformer ensures your 1.8-amp draw remains consistent throughout the heating cycle.

• OEM Compatibility: Specifically designed for Williams Comfort Products, including Forsaire and Magnum series furnaces.
• High-Efficiency Conversion: Precision 120V to 24V transformation protects control boards from voltage fluctuations.
• Industrial Durability: Robust lamination stacks reduce humming and prevent premature thermal failure under load.
• Direct Replacement: Matches existing mounting footprints for faster furnace repair and installation.

• Will this work with 240V systems? No, this is a 120V primary transformer. Always check your supply voltage before wiring to avoid burning out the primary coil.
• Can I use this for higher VA requirements? This unit is rated for 20VA. If your secondary circuit's total load (contactor, thermostat, and accessories) exceeds this, you may experience overheating or a blown internal fuse.
• Does it matter which wire is which on the primary? Yes, ensure you follow the color-coding to maintain proper polarity as mandated by the equipment manufacturer's wiring diagram.

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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.