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9.32.3.13.(9) | Application | Intent |
OH1 | OS1 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Exhaust outlets that do not incorporate a backdraft
damper located at the building envelope, 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 entry of vermin (such as
mice, rats or squirrels) into buildings, which could lead to the introduction
of disease organisms, which could lead to negative effects on the air quality
of indoor spaces, which could lead to harm to persons. |
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