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9.33.4.2.(1)
OH1OS2OS1OP1
ObjectiveOH1 Indoor Conditions
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 inspection, maintenance, repair or cleaning, which could lead to an inability to maintain adequate indoor air temperatures.
This is to limit the probability of condensation, which could lead to:
  • the generation of pollutants from harmful micro-organisms and the media they grow on becoming lodged in equipment, or
  • the deterioration of building elements.
This is to limit the probability of:
  • negative effects on the air quality of indoor spaces, or
  • the inadequate thermal comfort of persons.
This is to limit the probability of harm to persons.
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