This information has been archived because it is outdated and no longer relevant. This information has been archived because it is outdated and no longer relevant.
Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.
9.32.3.4.(2) | Application | Intent |
| OH1 | OS3 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Tempering of outdoor air where the actual normal operating
exhaust capacity of the principal ventilation fan exceeds the maximum permitted
outdoor airflow for the lesser of:
This applies to outdoor air introduced
to self-contained heating-season mechanical ventilation systems coupled to
forced air heating 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.
|
| Top of Page | |
| Intent | Intent 1: To limit the probability of the occasional excessive flow
of cold outdoor air through the furnace under wind pressure. This
is to limit the probability of:
This is to limit the probability of cracking, corrosion, or premature
failure of the heating appliance, which could lead to the leakage of carbon
monoxide gas into living space, which could lead to the acute poisoning or
asphyxiation of persons.
Intent 2: [Clause (b)] Where the normal operating exhaust capacity
of the principal ventilation fan exceeds the maximum permitted outdoor airflow,
and the system does not incorporate means for tempering outdoor air, to direct
Code users to Clause 9.32.3.1.(1)(a) or Article 9.32.3.5.
|
| Top of Page |