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9.33.4.2.(1)
OH1OS2OS1OP1
ObjectiveOP1 Fire Protection of the Building
Attribution
Application
Application 1: 
Access to equipment forming part of a heating or air-conditioning system serving only one dwelling unit, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except for embedded pipes or ducts.
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Intent
Intent 1: 
To limit the probability of inadequate access for servicing or cleaning, which could lead to:
  • the accelerated deterioration of heating or air-conditioning system equipment, or
  • the accumulation of dust and debris in system components.
This is to limit the probability of the inadequate performance or failure of equipment, which could lead to components overheating, which could lead to a fire or explosion, which could lead to damage to the building.
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