6.2.3.11.(1)ATTRIBUTION:
Functional Statement:
F50
To provide air suitable for breathing.
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
Make-up air supply for ventilating systems that exhaust
air to the outdoors, 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 Sentence 9.32.1.1.(3), and
- the ventilation of all occupancies other than residential occupancies, as stated in Sentence 9.32.1.1.(2).
INTENT:
To limit the probability of:
- a reduction in exhaust air volume, which could lead to inadequate ventilation, or
- the depressurization of occupied space from which air is being exhausted, which could lead to the entry of combustion products from fuel-fired appliances into 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:
F44
To limit the spread of hazardous substances beyond their point of release.
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OS3.4
APPLICATION:
Make-up air supply for ventilating systems that exhaust
air to the outdoors, 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), and
- the ventilation of all occupancies other than residential occupancies, as stated in Sentence 9.32.1.1.(2).
INTENT:
To limit the probability of the excessive depressurization
of the building, which could lead to the entry of carbon monoxide gas from
fuel-fired appliances into the building, which could lead to harm to persons.