- Nominal Cooling Capacity is based on 80.6 F (27 C) dry bulb, 66.2 F (19 C) wet bulb indoor conditions and 95 F (35 C) dry bulb ambient outdoor temperature. - Heating Capacity is based on 44.6 F dry bulb (7 C) ambient and 68 F dry bulb/59 F wet bulb (20 C dry bulb/15 C wet bulb) indoor air temperature. - Specifications are subject to change without notice in accordance with our policy of continuous research and product development.