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LB-90676 | LENNOX Furnace Control Board
- Regular price
- $315.00
- Sale price
- $315.00
- Regular price
-
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Product Description P/N: LB-90676
Description
The LB-90676 is a furnace control board designed for LENNOX HVAC systems. It functions as the central control unit managing essential furnace operations including ignition sequencing, blower control, safety monitoring, and system diagnostics.
Technical Specifications
| Condition | New/Never Used Surplus |
|---|---|
| Brand | LENNOX |
| Category |
HVAC & Refrigeration
|
| Part Number | LB-90676 |
| Subcategory | Furnace Control Boards |
| Item Thickness | 1 in |
| Power Source | Gas, Corded Electric |
| Amperage | 50 A |
| Power Phase | 1 Phase |
| Voltage | 24 V |
| Material | Plastic |
| Weight | 2 lbs |
Information About LB-90676
The LB-90676 is a low-voltage, microprocessor-based furnace control board from Lennox, designed to provide complete system management for gas furnace and HVAC systems. It controls ignition sequencing, blower operation, safety monitoring, and diagnostic reporting for both residential and commercial heating units. Compatible with natural gas and dual-fuel systems, the LB-90676 is used across Lennox, Armstrong, Ducane, and related brands. The board includes integrated diagnostic LEDs, single-phase power support, and works with standard 24 VAC thermostats. Replacement models like 65K29, BCC3-2, and upgraded versions such as 48K98 offer drop-in compatibility.
Key Features:
- Microprocessor-Controlled Operation: Manages ignition, combustion blower, and circulating fan functions.
- 24 VAC Input Power: Compatible with low-voltage control circuits and standard HVAC system wiring.
- Blower Timing Control: Automatically regulates heating and cooling blower speeds for optimized airflow.
- Safety and Limit Monitoring: Continuously checks safety switches, rollout sensors, and pressure switches to ensure safe operation.
- Integrated Diagnostics: Built-in LEDs provide error code indications for fast troubleshooting.
- Single-Phase Compatibility: Designed for use with 1-phase electrical systems.
- Power Source: Supports gas and corded electric systems for versatile use.
- Ignition Control: Provides timed ignition sequence, flame monitoring, and system lockout upon ignition failure.
- OEM Replacement: Direct replacement for LB-90676, 65K29, BCC3-2, and compatible models (Armstrong, Ducane, Lennox).
- Material Construction: Durable plastic enclosure for component protection.
- Thermostat Resettable: System can often be reset after fault using the thermostat interface.
- Compact Design: Board dimensions optimized for easy installation and servicing.
- Compatible Gas Controls: Works with standard 24 VAC thermostatic systems without the need for proprietary controllers.
The LB-90676 provides precise electronic control and dependable operation for Lennox-brand gas furnaces and related HVAC systems, ensuring safe ignition, efficient airflow management, and reliable diagnostics in demanding heating environments.
Description
The LB-90676 is a furnace control board designed for LENNOX HVAC systems. It functions as the central control unit managing essential furnace operations including ignition sequencing, blower control, safety monitoring, and system diagnostics.
Technical Specifications
| Condition | New/Never Used Surplus |
|---|---|
| Brand | LENNOX |
| Category |
HVAC & Refrigeration
|
| Part Number | LB-90676 |
| Subcategory | Furnace Control Boards |
| Item Thickness | 1 in |
| Power Source | Gas, Corded Electric |
| Amperage | 50 A |
| Power Phase | 1 Phase |
| Voltage | 24 V |
| Material | Plastic |
| Weight | 2 lbs |
Information About LB-90676
The LB-90676 is a low-voltage, microprocessor-based furnace control board from Lennox, designed to provide complete system management for gas furnace and HVAC systems. It controls ignition sequencing, blower operation, safety monitoring, and diagnostic reporting for both residential and commercial heating units. Compatible with natural gas and dual-fuel systems, the LB-90676 is used across Lennox, Armstrong, Ducane, and related brands. The board includes integrated diagnostic LEDs, single-phase power support, and works with standard 24 VAC thermostats. Replacement models like 65K29, BCC3-2, and upgraded versions such as 48K98 offer drop-in compatibility.
Key Features:
- Microprocessor-Controlled Operation: Manages ignition, combustion blower, and circulating fan functions.
- 24 VAC Input Power: Compatible with low-voltage control circuits and standard HVAC system wiring.
- Blower Timing Control: Automatically regulates heating and cooling blower speeds for optimized airflow.
- Safety and Limit Monitoring: Continuously checks safety switches, rollout sensors, and pressure switches to ensure safe operation.
- Integrated Diagnostics: Built-in LEDs provide error code indications for fast troubleshooting.
- Single-Phase Compatibility: Designed for use with 1-phase electrical systems.
- Power Source: Supports gas and corded electric systems for versatile use.
- Ignition Control: Provides timed ignition sequence, flame monitoring, and system lockout upon ignition failure.
- OEM Replacement: Direct replacement for LB-90676, 65K29, BCC3-2, and compatible models (Armstrong, Ducane, Lennox).
- Material Construction: Durable plastic enclosure for component protection.
- Thermostat Resettable: System can often be reset after fault using the thermostat interface.
- Compact Design: Board dimensions optimized for easy installation and servicing.
- Compatible Gas Controls: Works with standard 24 VAC thermostatic systems without the need for proprietary controllers.
The LB-90676 provides precise electronic control and dependable operation for Lennox-brand gas furnaces and related HVAC systems, ensuring safe ignition, efficient airflow management, and reliable diagnostics in demanding heating environments.
