Bryant/ Carrier Genuine OEM Part # HK42FZ017 Furnace Control Board- Open Box. The control board regulates the supply of power to the furnace components. Controls gas valve, Ignitor, blower motor, Inducer, humidifier, and air cleaner. Designed for 100% gas shutoff in case of ignition failure. Twinning compatible with another ICM2808 control. Secondary brownout voltage protection. Compatible with 24 VAC standard thermostat. Provides dual-color diagnostic LED to aid in troubleshooting. Ambient Temperature – Operating: -40°F to 176°F – Humidity: 5% to 95% R. Cool Blower: 10 HP, 120 VAC. Low Heat: 5A, 1/2 HP, 120 VAC. High Heat: 10A, 1 HP, 120 VAC. Humidifier: 0.5A & 24 VAC. If you receive a defective part, we will replace it at no extra charge to you if we have another in stock.