(1) Except as provided in Sentence (4), capacity ratings for required fans shall be determined in accordance with,
(a) CAN/CSA-C260-M, “Rating the Performance of Residential Mechanical Ventilating Equipment”, or
(b) HVI 916, “Airflow Test Procedure”.
(2) Sound ratings for required fans shall be determined in accordance with,
(a) CAN/CSA-C260-M, “Rating the Performance of Residential Mechanical Ventilating Equipment”, or
(b) HVI 915, “Loudness Testing and Rating Procedure”.
(3) Capacity ratings for required fans shall be based on a static pressure differential of 50 Pa, 25 Pa or 7.5 Pa depending on whether the fan is installed with ductwork connected on both sides, one side or neither side, respectively.
(4) Except for heat recovery ventilators, exhaust fans required to make up any part of the total ventilation capacity required by Article 9.32.3.3. shall have a sound rating not greater than that specified in Table 9.32.3.9.
(5) Required fans shall be installed according to the manufacturer's instructions.
(6) Mechanical ventilation devices shall conform to CSA C22.2 No. 113, “Fans and Ventilators”.