50A55-843 Furnace Control Board Module Fit for White-Rodgers, Fit for Lennox Gas Furnaces, Automatic Gas Ignition Controller for 21M51U-843 21V51U-843 50D50-843 50E47-843 50M56U-843 50A65-843

Description: Product name: 50A55-843 Furnace Control Board Feature: The 50A55-843 integrated furnace control panel is the core control component of a household gas furnace. It utilizes a microprocessor for fully automatic control, monitoring the operation of components such as the burner and fan. It automatically performs ignition, flame sensing, and system startup and shutdown, ensuring stable heating. It quickly restores the furnace to normal operation, providing reliable heating during cold weather. Package includes: 1 * 50A55-843 Furnace Control Board Notice : Please allow slight size errors due to manual measurement, thank you for your understanding. Due to differences in monitors, there may be some color differences. Thank you for your understanding.

• Compatibility: Designed not only for replacing the 50A55-843 control board but also compatible with 7 other ignition module models: 21M51U-843, 21V51U-843, 50D50-843, 50E47-843, 50M56U-843, 50A65-843, and 50D50-842. It is compatible with Len-nox furnace systems and compatible with White-Rodgers
• Automatic Control for Stable Heating: It can real-time monitor and control the operation status of gas burners, inducer wheels, and fans. By interpreting signals from thermostats and flame sensors, it automatically starts burner ignition, detects flames, and shuts down the system after operation. Widely used in household gas heating furnaces, it provides continuous and stable heating in cold seasons
• Precise Parameter Configuration for Complex Working Conditions: Valve relay: 1.5A@25VAC; Igniter relay: 6.0A@120VAC; Pilot relay: 2.2-3.5FLA@120VAC; Circulating pump relay: 14.5-25.0FLA@120VAC. The functional timing is scientifically set, including 30 seconds of pre-purging, 4 ignition attempts, and 300 seconds of lockout time, ensuring controllable combustion. It works within a temperature range of -40°F to 175°F (-40°C to 80°C) and humidity of 5%-93% (non-condensing)
• Functions: It has core functions such as controlled combustion process, monitoring and adjustment, fault detection and protection. It can promptly identify abnormalities and trigger protection mechanisms (e.g., automatic lockout). It supports fan and blower control, heating system start-stop management, and is equipped with additional functions like air cleaner contacts and humidifier contacts, balancing heating efficiency and usability
• Easy Installation: The installation process is convenient. It is recommended to turn off the power and take photos to record the wiring positions before removing the old circuit board. It has a compact size (width: 6.88 inches / 17.5 cm, height: 4.83 inches / 12.3 cm)