6.2.3.15.(2)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
Fans and associated air handling equipment, in heating,
ventilating and air-conditioning systems, such as air washers, filters and
heating and cooling units located outdoors, serving 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 type of fan
or associated air handling equipment will be unable to withstand expected
weather conditions, which could lead to failure, which could lead to:
- an inability to maintain adequate indoor air temperature 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.
This is to limit the probability of negative
effects on the air quality of indoor spaces, which could lead to harm to persons.