6.2.3.2.(3)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:
Construction and installation of ducts and fittings
in air duct distribution systems serving heating, ventilating and air-conditioning
systems, in buildings to which Part 6 applies [see Sentence
1.3.3.2.(1) of Division A for application of Part 6].
INTENT:
To limit the probability that the performance of ducts or
fittings will fall significantly below expectations, which could lead to,
in the case of ventilation systems, depressurization in buildings, which could
lead to the spillage of carbon monoxide gas from fuel-fired appliances, which
could lead to the acute poisoning or asphyxiation of persons.
ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
Construction and installation of ducts and fittings
in air duct distribution systems serving heating, ventilating and air-conditioning
systems, in buildings to which Part 6 applies [see Sentence
1.3.3.2.(1) of Division A for application of Part 6].
INTENT:
To limit the probability that the performance of ducts or
fittings will fall significantly below expectations, which could lead to:
- a failure to deliver conditioned air to designated locations,
which could lead to
- an inability to maintain adequate indoor air temperatures or to control relative humidity, which could lead to condensation, which could lead to the growth of mould and mildew, or
- the inadequate control of airborne pollutants, or
- in the case of ventilation systems, depressurization in buildings, which could lead to the spillage of combustion products from fuel-fired appliances.
This is to limit the probability of negative
effects on the air quality of indoor spaces, which could lead to harm to persons.