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1105.5 Ventilation of Rooms Containing Condensing Units
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Permanent gravity ventilation openings of not less than 2 square feet (0.2 m2) net free area opening shall be terminated directly to the outside of the building or extend to the outside of the building by continuous ducts.
A mechanical exhaust system shall be designed to provide a complete change of air not less than every 20 minutes in such room or space and shall discharge to the outside of the building.
- A condensing unit in a room or space where the cubical content exceeds 1000 cubic feet per horsepower (ft3/hp) (37.95 m3/kW) of the unit.
- A condensing unit in a room or space that has permanent gravity ventilation having an area of 2 square feet (0.2 m2) or more to other rooms or openings exceeding 1000 ft3/hp (37.95 m3/kW).
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