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9.32.3.8.(3) | Application | Intent |
OH1 | OS3 |
Objective | OH1 Indoor Conditions |
Attribution | |
Application | Application 1: Activation of supply fans rated to deliver outdoor
makeup air to 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 as stated in:
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Intent | Intent 1: To limit the probability of the operation of exhaust fans
without the simultaneous operation of related makeup air fans, which could
lead to excessive depressurization, 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.
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