International Comfort Products The 1172550 Control Used on models C8DNL050B12B1, C8DNL050B12B2 and C8DNL075B12B1 Used on models C8DNL075B12B2, C8DNL075F16B1 and C8DNL075F16B2 Used on models C8DNL100F14B1, C8DNL100F14B2 and C8DNL100L20B1