The following items must be shown, detailed and/or noted on the “mechanical (HVAC) plan”:
HVAC ductwork layout, including sizing and location of all supply and return ducts.
HVAC equipment size and location.
HVAC equipment located in an attic (section M1305.1.3, I.R.C.).
· Attic passageway to HVAC (height, width and maximum length)
· HVAC service space
· Attic HVAC service illumination, switch, service outlet and means of disconnect, see “Electrical Plan.”
Clothes dryer exhaust duct size, termination and maximum dryer exhaust vent length (section M1502, I.R.C.).
***Please Note: If the maximum dryer exhaust vent length is exceeded, the dryer must be relocated or the dryer exhaust vent system must be engineered and approved, in advance, as an “alternative design” (section R104.11, I.R.C.).