(1)
Every residential occupancy shall incorporate
(a)
provisions for non-heating-season ventilation in accordance with Subsection 9.32.2., and
(b)
except as required by Sentences (2) and (3), if supplied with electrical power and a heating system, provisions for heating-season ventilation in accordance with Part 6.
(2)
A self-contained heating-season ventilation system serving a single dwelling unit shall comply with Subsection 9.32.3. (See Note A-9.32.1.2.(2))
(3)
In houses that contain a secondary suite, heating-season ventilation need not be provided for
(a)
(b)
public corridors, and
(c)
ancillary spaces that are not within a dwelling unit, except as provided in Sentence (4). (See Note A-9.32.1.2.(2))
(4)
Where ancillary spaces described in Clause (3)(c) contain exhaust devices, these spaces shall be provided with make-up air in accordance with Article 9.32.3.8.