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9.32.3.5.(4) | Application | Intent |
OH1 | OS3 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Connection of outdoor air supply fans to the outdoors,
in 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:
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 that the outdoor air supply flow
will not be equal to the normal operating exhaust capacity of the principal
ventilation fan, which could lead to excessive depressurization, which could
lead to:
This is to limit the probability of the inadequate
control of:
This is to limit the probability of negative effects on the air
quality of indoor spaces, which could lead to harm to persons.
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