301.1 The following design parameters shall be used for calculations required under subpart D of this part.
301.1.1 Exterior Design Conditions. Exterior Design Conditions shall be expressed in accordance with Table 301.1.
301.2 Indoor Design Conditions. Indoor design temperature and humidity conditions shall be in accordance with the comfort criteria in RS-2 (incorporated by reference, see § 434.701), except that humidification and dehumidification are not required.