6.2.3.11.(2)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
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.
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 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:
- a reduction in exhaust air volume, which could lead to inadequate ventilation, or
- 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:
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:
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.
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 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.