This WHITEROD 21M51U-843 120VAC UNIVERSAL 2-STAGE HSI features a universal design and 2-stage heating for versatile use. With a 120VAC power source, it offers efficient performance. Perfect for any heating system, it provides reliable and consistent heat.

This easy to install kit includes everything you need for quick and accurate replacement of White Rodgers 50M51-242 and all 50M61-XXX controls. Simplifies stocking, installation and ensures peak system performance. With its comprehensive design, this kit minimizes downtime and reduces maintenance costs, getting your system up and running efficiently in no time.

Kit Includes:

• Ignition Control Module
• Universal 120V Nitride Ignitor Kit - 21D64-2
• Installation Instructions and OEM Cross-Reference

Specifications:

Features:

• 120 VAC Ignitor Output
• 120 VAC Two-Speed Inducer Output
• 120 VAC Humidifier Output
• 120 VAC Electronic Air Cleaner Output
• 120 VAC 3-Speed PSC (Permanent Split Capacitor) Circulator Output
• 2-Stage Gas Valve Output
• Fuse Protection - 3 Amp
• Furnace Status LED - Tri-Color (Green, Red and Amber)
• Heat Fan OFF Delay (Dipswitch Selectable)
• Fan ON Delay for Cooling
• Auto Second Stage Delay (Dipswitch Selectable Mode)
• Historical Fault Retrieval by Pushbutton
• YLO, Y, W1, W2, R, G, C, TWIN Terminals
• Pressure Switch Inputs and Monitoring
• Flash Microprocessor with Non-Volatile Memory
• Flame Current Measurement Points