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9.32.3.1.(1) | Application | Intent |
| OS3 | OH1 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Heating-season mechanical ventilation systems serving
single dwelling units that are supplied with
electrical power and a heating system, in buildings to
which:
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| Intent | Intent 1: To limit the probability of the inadequate replacement of
indoor air with outdoor air, which could lead to excessive negative pressure
in dwelling units, which could lead to the spillage of combustion products
from fuel-burning appliances that are susceptible to spillage.
This is to limit the probability of the entry of carbon monoxide
gas into living space, which could lead to the acute poisoning or asphyxiation
of persons.
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