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9.32.3.8.(2) | Application | Intent |
OH1 | OS3 | OS2 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Supply of outdoor makeup air to mechanical air-exhausting
devices in dwelling units that:
This applies to 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:
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Intent | Intent 1: [Clause (a)] To limit the probability of excessive negative
pressure, which could lead to:
This is to limit the probability of negative
effects on the air quality of indoor spaces, which could lead to harm to persons.
Intent 2: [Clause (b)] To limit the probability of an excessive volume
of makeup air, which could lead to excessive positive pressure, which could
lead to condensation within assemblies. This is to limit
the probability 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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