Back6.2.10.1.(1)

ATTRIBUTION:

Functional Statement:

F43

To minimize the risk of release of hazardous substances.

F81

To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.

Objective:

OS3.4

 

APPLICATION:

Installation of cooling units combined with fuel-fired furnaces in the same duct system, 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 the design and installation of heating 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 the inappropriate placement of a cooling system's evaporator coils will lead to overheating of the evaporator coils, which could lead to an increase in pressure, which could lead to the rupture of the coil and entry of refrigerant gases into occupied space, which could lead to harm to persons.