Description
- Three-speed PSC (Permanent Split Capacitor) circulator output, two-speed inducer output, two-stage gas valve output
- Furnace status LED - tri-color (green, red and amber)
- Pushbutton fault history retrieval
- Heat fan off delay (dipswitch selectable), fan on delay for cooling, and auto second-stage delay
- Includes 21D64-2 Silicon Nitride ignitor kit and module
Emerson21M51U-843 Universal Integrated Furnace Control Kit with Three Speed Circulator
