6.2.3.15.(1)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
F44
To limit the spread of hazardous substances beyond their point of release.
Objective:
OH1.1
APPLICATION:
Location and installation of fans for heating, ventilating
and air-conditioning systems, in buildings described in Sentence
1.3.3.2.(1) of Division A.
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:
- mechanical ventilating systems other than self-contained systems serving single dwelling units, as stated in Sentence 9.32.1.2.(2),
- the ventilation of storage garages for more than 4 motor vehicles in residential occupancies, as stated in Sentence 9.32.1.1.(3),
- the ventilation of all occupancies other than residential occupancies, as stated in Sentence 9.32.1.1.(2),
- heating systems, including requirements for combustion air, and air-conditioning systems other than those serving individual dwelling units, as stated in Sentence 9.33.1.1.(2), and
- air duct distribution systems serving heating systems in which the rated heat input exceeds 120 kW, as stated in Sentence 9.33.6.1.(2).
INTENT:
To limit the probability that an inappropriate location
or installation of fans will lead to:
- zones of depressurization in the building, which could lead to the spillage of combustion products from fuel-fired appliances, and
- the distribution of contaminants that might be present in boiler or furnace rooms by entraining them in the air being circulated in ductwork serving the building.
This is to limit the probability of negative
effects on the air quality of indoor spaces, which could lead to harm to persons.
ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
F44
To limit the spread of hazardous substances beyond their point of release.
Objective:
OS3.4
APPLICATION:
Location and installation of fans for heating, ventilating
and air-conditioning systems, in buildings described in Sentence
1.3.3.2.(1) of Division A.
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:
- mechanical ventilating systems other than self-contained systems serving single dwelling units, as stated in Sentence 9.32.1.2.(2),
- the ventilation of storage garages for more than 4 motor vehicles in residential occupancies, as stated in Sentence 9.32.1.1.(3),
- the ventilation of all occupancies other than residential occupancies, as stated in Sentence 9.32.1.1.(2), and
- heating systems, including requirements for combustion air, and air-conditioning systems other than those serving individual dwelling units, as stated in Sentence 9.33.1.1.(2).
INTENT:
To limit the probability that an inappropriate location
or installation of fans will lead to zones of depressurization in buildings,
which could lead to the spillage of carbon monoxide gas from fuel-fired appliances,
which could lead to harm to persons.