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9.32.3.7.(3) | Application | Intent |
| OH1 |
| Objective | OH1 Indoor Conditions |
| Attribution | |
| Application | Application 1: Supplemental exhaust in kitchens where the principal
ventilation fan draws from the exhaust air intakes located in the kitchen
and other rooms, and where:
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 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 of the inadequate removal of vapours
and pollutants produced by cooking. 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.
Intent 2: To exempt certain installations from the requirement to
install a supplemental exhaust fan in the kitchen as stated in Sentence 9.32.3.7.(1),
on the basis that the significantly higher exhaust rate of the principal ventilation
fan is likely to adequately remove vapours and pollutants produced by cooking.
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