(1)
The heating-season ventilation required by Clause 9.32.1.2.(1)(b) shall be provided by a mechanical ventilation system complying with
(a)
good practice such as that described in CAN/CSA-F326-M, “Residential Mechanical Ventilation Systems,”
(b)
for dwelling units with 5 or fewer bedrooms, the balance of this Subsection, or
(c)
Part 6. (See Note A-9.32.3.1.(1))
(2)
Mechanical ventilation systems complying with the balance of this Subsection shall incorporate at least the following components:
(a)
a principal ventilation system complying with Article 9.32.3.3.,
(b)
supplemental exhaust fans complying with Article 9.32.3.7., and
(c)
protection against depressurization in accordance with Article 9.32.3.8.