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Nordyne 626421R Hot Surface Ignition Control Board Module
- Regular price
- $359.00
- Sale price
- $359.00
- Regular price
-
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Product Description P/N: 626421R
Description
The Nordyne 626421R is an OEM hot surface ignition (HSI) control board engineered for residential gas furnaces. Operating as a primary ignition management module, it controls the igniter warm-up sequence, gas valve energization, and flame sensing circuits. This unit provides direct factory replacement to restore safe and reliable burner ignition across compatible heating systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Nordyne |
| Category | Controls & Indicators |
| Part Number | 626421R |
| Subcategory | Temperature/Process Control |
| Product Type | Hot Surface Ignition Module |
| Ignition Method | Hot Surface Ignition (HSI) |
| Functions Controlled | Igniter Timing, Gas Valve, Flame Sensing |
| Application | Residential Gas Furnaces |
| Weight | 1.0 lb |
Information About 626421R
The 626421R is a high-reliability electronic control module manufactured by Nordyne to regulate gas furnace burner sequences. Built with micro-processor circuitry, it oversees time-delayed hot surface igniter heating to ensure safe ignition of incoming fuel gases. It continuously monitors the flame rectification signal, initiating immediate fuel shutoff if a flame failure or improper combustion is detected. Designed for straightforward field replacement, it aligns with factory cabinet mounting locations and interfaces cleanly with original system wiring harnesses.
Key Features:
- Hot Surface Ignition Control: Regulates precise timing and current flow to hot surface igniters for consistent burner lighting.
- Flame Rectification Monitoring: Actively checks flame sensor signals during operation to prevent unburned gas accumulation.
- Safety Interlock Response: Triggers immediate gas valve shutdown upon loss of flame signal or limit switch open state.
- Solid-State Circuitry: Constructed with industrial-grade micro-components designed to withstand ongoing thermal cycling.
- Direct OEM Replacement: Engineered to match original terminal markings and mounting configurations for fast service setup.
- Lightweight Compact Form: Weighs 0.45 kg (1.0 lb) for easy handling and installation within narrow furnace control compartments.
The 626421R delivers the reliability and precision required for safe furnace ignition and efficient gas burner operation.
Description
The Nordyne 626421R is an OEM hot surface ignition (HSI) control board engineered for residential gas furnaces. Operating as a primary ignition management module, it controls the igniter warm-up sequence, gas valve energization, and flame sensing circuits. This unit provides direct factory replacement to restore safe and reliable burner ignition across compatible heating systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Nordyne |
| Category | Controls & Indicators |
| Part Number | 626421R |
| Subcategory | Temperature/Process Control |
| Product Type | Hot Surface Ignition Module |
| Ignition Method | Hot Surface Ignition (HSI) |
| Functions Controlled | Igniter Timing, Gas Valve, Flame Sensing |
| Application | Residential Gas Furnaces |
| Weight | 1.0 lb |
Information About 626421R
The 626421R is a high-reliability electronic control module manufactured by Nordyne to regulate gas furnace burner sequences. Built with micro-processor circuitry, it oversees time-delayed hot surface igniter heating to ensure safe ignition of incoming fuel gases. It continuously monitors the flame rectification signal, initiating immediate fuel shutoff if a flame failure or improper combustion is detected. Designed for straightforward field replacement, it aligns with factory cabinet mounting locations and interfaces cleanly with original system wiring harnesses.
Key Features:
- Hot Surface Ignition Control: Regulates precise timing and current flow to hot surface igniters for consistent burner lighting.
- Flame Rectification Monitoring: Actively checks flame sensor signals during operation to prevent unburned gas accumulation.
- Safety Interlock Response: Triggers immediate gas valve shutdown upon loss of flame signal or limit switch open state.
- Solid-State Circuitry: Constructed with industrial-grade micro-components designed to withstand ongoing thermal cycling.
- Direct OEM Replacement: Engineered to match original terminal markings and mounting configurations for fast service setup.
- Lightweight Compact Form: Weighs 0.45 kg (1.0 lb) for easy handling and installation within narrow furnace control compartments.
The 626421R delivers the reliability and precision required for safe furnace ignition and efficient gas burner operation.