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9.32.3.5.(11)
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Application
Application 1: 
Distribution of outdoor air in dwelling units in which every storey has a bedroom, and:
  • an exhaust air intake for the principal ventilation fan is located in the principal living area, and
  • there are no more than 2 exhaust air intakes located in rooms other than the principal living area.
This applies to self-contained heating-season mechanical ventilation systems that are not coupled to forced air heating systems, serving single dwelling units with 5 or fewer bedrooms that are supplied with electrical power and a heating system, in buildings to which:
  • Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], or
  • Part 6 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 6 and Sentence 6.2.2.1.(3)].
Exceptions: 
except as stated in Sentence 9.32.3.1.(1), which applies to heating-season mechanical ventilation systems designed to comply with CAN/CSA-F326-M.
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Intent
Intent 1: 
To exempt dwelling units in which every storey has a bedroom from the requirement in Clause 9.32.3.5.(10)(c) to supply outdoor air to the principal living area, on the basis that the principal living area receives an adequate supply of outdoor air from other rooms supplied with outdoor air in that storey.
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