Nordyne 632447R Pressure Switch

The White Rodgers 50A55-843 is a universal silicon carbide integrated ignition control engineered to replace a wide array of OEM modules, including those from Trane, York, ICP, and Amana. As a furnace control board replacement, it utilizes an advanced microprocessor to manage the HSI sequence, inducer draft motor, and circulator blower. This HVAC ignition module features flash code diagnostics via a dedicated LED to streamline troubleshooting for field technicians. It supports single-stage heating and cooling applications, providing 120V outputs for both a humidifier and an electronic air cleaner. The board includes a replaceable automotive-style fuse to protect the low-voltage transformer from shorts. With adjustable blower delay settings and a comprehensive wiring harness kit, this universal furnace board minimizes truck stock while ensuring high-performance compatibility across diverse hot surface ignition systems.

• Universal Compatibility: Directly replaces over 400 part numbers from major brands including Goodman, Lennox, and Carrier.
• Advanced Diagnostics: On-board LED provides immediate fault code identification for rapid system repair.
• Simplified Installation: Includes additional jumper wires and a mounting template for quick retrofitting in existing furnace cabinets.
• Integrated Auxiliaries: Dedicated terminals for 120V cleaners and humidifiers simplify system upgrades.
• Field Adjustable: Selectable heat/cool fan delays allow for precise airflow tuning based on specific ductwork requirements.

Does this board support twinning?
Yes, the 50A55-843 is designed with twinning capability for applications requiring two furnace units to operate on a single thermostat.

Can I use this for Trane applications?
Absolutely. The module includes a specific Trane jumper wire to bypass rollout switch errors commonly found in older Trane configurations.

What is the ignitor voltage rating?
This control is specifically designed for 120V silicon carbide ignitors. Ensure the existing ignitor matches this voltage before completing the installation.

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.