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(a) The mechanical air handling equipment serving the fire zone shall be designed to provide maximum exhaust without recirculation and to be activated by the water flow device serving that fire zone. This requirement shall not apply to residential occupancies.
(b) Fire dampers shall not be required in mechanical heating, ventilation and air conditioning systems in buildings complying with this chapter.
(Prior code § 62.1-6; Amend Coun. J. 9-13-89, p. 4604; Amend Coun. J. 3-5-03, p. 104990, § 22; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1; Amend Coun. J. 9-6-17, p. 55278, Art. VII, § 6)