The Isq.cm71 Fan Control Center is a solid state control designed and engineered for the replacement market. The ICM271 is designed specifically to replace the Carrier/BDP Gas Furnace Control Centers that have been used in new equipment for many years. The ICM271 is a form, fit and functional replacement of the OEM control requiring no modifications to the original wiring or to the appliances sheet metal.Reliable solid state fan blower controlSpecifically designed to replace popular gas furnace centersPin selectable blower delaysHigh power, relay outputDual function fan delay timerControls the circulating fan in HP, A/C and forced air systemsOff delay purges ducts of residual airOn delay allows air to reach the proper comfort level prior to energizing the fan