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6.2.3.11.(2) | Application | Intent |
| OH1 | OS3 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Interlocking of make-up air facilities with the exhaust
devices they serve, for ventilating systems that exhaust air to the outdoors,
in buildings described in Sentence 1.3.3.2.(1) of Division A. Application 2: This also applies to buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9], with respect to:
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| Intent | Intent 1: To limit the probability that exhaust systems will operate
without the introduction of make-up air, which could lead to the depressurization
of occupied space from which air is being exhausted, which could lead to the
entry of carbon monoxide gas from fuel-fired appliances into the building,
which could lead to harm to persons. |
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