21M51U-843, Integrated Furnace Controls Universal Replacement
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Manufacturer: White Rodgers
Manufacturer Part Number: 21M51U-843
Model Number: 21M51U-843
Universal two-stage integrated furnace control for PSC blower motors includes a universal 120V nitride ignitor for 80V or 120V hot surface ignition systems.
- Reduces inventory by replacing most White-Rodgers 50A51, 50M51, and 50M61 and other two-stage HSI controls with 80V or 120V ignitor.
- Includes a universal 120V nitride ignitor to allow replacement of 80V and 120V controls
- Diagnostic LED indicators streamline installation and system troubleshooting
- 120V air cleaner output and 120V humidifier output up to 1 Amp max
- Added dipswitches to trial for ignition and blower delays
- Additional blower motor wire extensions
- Trane ignitor mounting bracket is included
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