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9.32.3.13.(6) | Application | Intent |
OH1 | OS2 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Protection, from the entry of precipitation, of air
intake and exhaust openings in exposed locations, in self-contained heating-season
mechanical ventilation systems serving single dwelling
units with 5 or fewer bedrooms that are supplied with electrical power
and a heating system, in buildings to which:
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 limit the probability of the ingress of precipitation
into the ventilation system, which could lead to the generation of pollutants
from biological growth or from materials that become unstable on wetting,
which could lead to negative effects on the air quality of indoor spaces,
which could lead to harm to persons. |
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