6.2.3.11.(3)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.2
APPLICATION:
Tempering of make-up air, in heating, ventilating
and air-conditioning systems, introduced directly from outdoors to occupied
parts of the building in winter, 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 that cold outdoor air will enter
occupied parts of the building, which could lead to the inadequate control
of relative humidity or indoor air temperatures, which could lead to the inadequate
thermal comfort of persons, which could lead to harm to persons.